content/renderer/render_view_impl.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/render_view_impl.h"
   6
   7 #include <algorithm>
   8 #include <cmath>
   9
  10 #include "base/auto_reset.h"
  11 #include "base/bind.h"
  12 #include "base/bind_helpers.h"
  13 #include "base/command_line.h"
  14 #include "base/compiler_specific.h"
  15 #include "base/debug/alias.h"
  16 #include "base/debug/trace_event.h"
  17 #include "base/files/file_path.h"
  18 #include "base/i18n/rtl.h"
  19 #include "base/json/json_writer.h"
  20 #include "base/lazy_instance.h"
  21 #include "base/memory/scoped_ptr.h"
  22 #include "base/message_loop/message_loop_proxy.h"
  23 #include "base/metrics/field_trial.h"
  24 #include "base/metrics/histogram.h"
  25 #include "base/process/kill.h"
  26 #include "base/process/process.h"
  27 #include "base/strings/string_number_conversions.h"
  28 #include "base/strings/string_piece.h"
  29 #include "base/strings/string_split.h"
  30 #include "base/strings/string_util.h"
  31 #include "base/strings/sys_string_conversions.h"
  32 #include "base/strings/utf_string_conversions.h"
  33 #include "base/time/time.h"
  34 #include "cc/base/switches.h"
  35 #include "content/child/appcache/appcache_dispatcher.h"
  36 #include "content/child/appcache/web_application_cache_host_impl.h"
  37 #include "content/child/child_shared_bitmap_manager.h"
  38 #include "content/child/child_thread.h"
  39 #include "content/child/npapi/webplugin_delegate_impl.h"
  40 #include "content/child/request_extra_data.h"
  41 #include "content/child/webmessageportchannel_impl.h"
  42 #include "content/common/content_constants_internal.h"
  43 #include "content/common/database_messages.h"
  44 #include "content/common/dom_storage/dom_storage_types.h"
  45 #include "content/common/drag_messages.h"
  46 #include "content/common/frame_messages.h"
  47 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  48 #include "content/common/input_messages.h"
  49 #include "content/common/pepper_messages.h"
  50 #include "content/common/ssl_status_serialization.h"
  51 #include "content/common/view_messages.h"
  52 #include "content/public/common/bindings_policy.h"
  53 #include "content/public/common/content_client.h"
  54 #include "content/public/common/content_constants.h"
  55 #include "content/public/common/content_switches.h"
  56 #include "content/public/common/drop_data.h"
  57 #include "content/public/common/favicon_url.h"
  58 #include "content/public/common/file_chooser_file_info.h"
  59 #include "content/public/common/file_chooser_params.h"
  60 #include "content/public/common/page_state.h"
  61 #include "content/public/common/page_zoom.h"
  62 #include "content/public/common/ssl_status.h"
  63 #include "content/public/common/three_d_api_types.h"
  64 #include "content/public/common/url_constants.h"
  65 #include "content/public/common/url_utils.h"
  66 #include "content/public/common/web_preferences.h"
  67 #include "content/public/renderer/content_renderer_client.h"
  68 #include "content/public/renderer/document_state.h"
  69 #include "content/public/renderer/navigation_state.h"
  70 #include "content/public/renderer/render_view_observer.h"
  71 #include "content/public/renderer/render_view_visitor.h"
  72 #include "content/renderer/browser_plugin/browser_plugin.h"
  73 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
  74 #include "content/renderer/devtools/devtools_agent.h"
  75 #include "content/renderer/disambiguation_popup_helper.h"
  76 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
  77 #include "content/renderer/drop_data_builder.h"
  78 #include "content/renderer/gpu/gpu_benchmarking_extension.h"
  79 #include "content/renderer/gpu/render_widget_compositor.h"
  80 #include "content/renderer/history_controller.h"
  81 #include "content/renderer/history_serialization.h"
  82 #include "content/renderer/idle_user_detector.h"
  83 #include "content/renderer/ime_event_guard.h"
  84 #include "content/renderer/input/input_handler_manager.h"
  85 #include "content/renderer/internal_document_state_data.h"
  86 #include "content/renderer/media/audio_device_factory.h"
  87 #include "content/renderer/media/video_capture_impl_manager.h"
  88 #include "content/renderer/memory_benchmarking_extension.h"
  89 #include "content/renderer/mhtml_generator.h"
  90 #include "content/renderer/net_info_helper.h"
  91 #include "content/renderer/render_frame_impl.h"
  92 #include "content/renderer/render_frame_proxy.h"
  93 #include "content/renderer/render_process.h"
  94 #include "content/renderer/render_thread_impl.h"
  95 #include "content/renderer/render_view_impl_params.h"
  96 #include "content/renderer/render_view_mouse_lock_dispatcher.h"
  97 #include "content/renderer/render_widget_fullscreen_pepper.h"
  98 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
  99 #include "content/renderer/resizing_mode_selector.h"
 100 #include "content/renderer/savable_resources.h"
 101 #include "content/renderer/skia_benchmarking_extension.h"
 102 #include "content/renderer/speech_recognition_dispatcher.h"
 103 #include "content/renderer/stats_collection_controller.h"
 104 #include "content/renderer/stats_collection_observer.h"
 105 #include "content/renderer/text_input_client_observer.h"
 106 #include "content/renderer/v8_value_converter_impl.h"
 107 #include "content/renderer/web_ui_extension.h"
 108 #include "content/renderer/web_ui_extension_data.h"
 109 #include "content/renderer/web_ui_mojo.h"
 110 #include "content/renderer/websharedworker_proxy.h"
 111 #include "media/audio/audio_output_device.h"
 112 #include "media/base/media_switches.h"
 113 #include "media/filters/audio_renderer_impl.h"
 114 #include "media/filters/gpu_video_accelerator_factories.h"
 115 #include "net/base/data_url.h"
 116 #include "net/base/escape.h"
 117 #include "net/base/net_errors.h"
 118 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 119 #include "net/http/http_util.h"
 120 #include "skia/ext/platform_canvas.h"
 121 #include "third_party/WebKit/public/platform/WebCString.h"
 122 #include "third_party/WebKit/public/platform/WebConnectionType.h"
 123 #include "third_party/WebKit/public/platform/WebDragData.h"
 124 #include "third_party/WebKit/public/platform/WebHTTPBody.h"
 125 #include "third_party/WebKit/public/platform/WebImage.h"
 126 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
 127 #include "third_party/WebKit/public/platform/WebPoint.h"
 128 #include "third_party/WebKit/public/platform/WebRect.h"
 129 #include "third_party/WebKit/public/platform/WebSize.h"
 130 #include "third_party/WebKit/public/platform/WebStorageQuotaCallbacks.h"
 131 #include "third_party/WebKit/public/platform/WebString.h"
 132 #include "third_party/WebKit/public/platform/WebURL.h"
 133 #include "third_party/WebKit/public/platform/WebURLError.h"
 134 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 135 #include "third_party/WebKit/public/platform/WebURLResponse.h"
 136 #include "third_party/WebKit/public/platform/WebVector.h"
 137 #include "third_party/WebKit/public/web/WebAXObject.h"
 138 #include "third_party/WebKit/public/web/WebColorName.h"
 139 #include "third_party/WebKit/public/web/WebColorSuggestion.h"
 140 #include "third_party/WebKit/public/web/WebDOMEvent.h"
 141 #include "third_party/WebKit/public/web/WebDOMMessageEvent.h"
 142 #include "third_party/WebKit/public/web/WebDataSource.h"
 143 #include "third_party/WebKit/public/web/WebDateTimeChooserCompletion.h"
 144 #include "third_party/WebKit/public/web/WebDateTimeChooserParams.h"
 145 #include "third_party/WebKit/public/web/WebDevToolsAgent.h"
 146 #include "third_party/WebKit/public/web/WebDocument.h"
 147 #include "third_party/WebKit/public/web/WebElement.h"
 148 #include "third_party/WebKit/public/web/WebFileChooserParams.h"
 149 #include "third_party/WebKit/public/web/WebFindOptions.h"
 150 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 151 #include "third_party/WebKit/public/web/WebFormElement.h"
 152 #include "third_party/WebKit/public/web/WebFrame.h"
 153 #include "third_party/WebKit/public/web/WebGlyphCache.h"
 154 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 155 #include "third_party/WebKit/public/web/WebHitTestResult.h"
 156 #include "third_party/WebKit/public/web/WebInputElement.h"
 157 #include "third_party/WebKit/public/web/WebInputEvent.h"
 158 #include "third_party/WebKit/public/web/WebKit.h"
 159 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 160 #include "third_party/WebKit/public/web/WebMediaPlayerAction.h"
 161 #include "third_party/WebKit/public/web/WebNavigationPolicy.h"
 162 #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
 163 #include "third_party/WebKit/public/web/WebNodeList.h"
 164 #include "third_party/WebKit/public/web/WebPageSerializer.h"
 165 #include "third_party/WebKit/public/web/WebPlugin.h"
 166 #include "third_party/WebKit/public/web/WebPluginAction.h"
 167 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 168 #include "third_party/WebKit/public/web/WebPluginDocument.h"
 169 #include "third_party/WebKit/public/web/WebRange.h"
 170 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 171 #include "third_party/WebKit/public/web/WebScriptSource.h"
 172 #include "third_party/WebKit/public/web/WebSearchableFormData.h"
 173 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 174 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 175 #include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
 176 #include "third_party/WebKit/public/web/WebSettings.h"
 177 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 178 #include "third_party/WebKit/public/web/WebView.h"
 179 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 180 #include "third_party/WebKit/public/web/default/WebRenderTheme.h"
 181 #include "third_party/icu/source/common/unicode/uchar.h"
 182 #include "third_party/icu/source/common/unicode/uscript.h"
 183 #include "ui/base/clipboard/clipboard.h"
 184 #include "ui/base/ui_base_switches_util.h"
 185 #include "ui/events/latency_info.h"
 186 #include "ui/gfx/native_widget_types.h"
 187 #include "ui/gfx/point.h"
 188 #include "ui/gfx/rect.h"
 189 #include "ui/gfx/rect_conversions.h"
 190 #include "ui/gfx/size_conversions.h"
 191 #include "v8/include/v8.h"
 192
 193 #if defined(OS_ANDROID)
 194 #include <cpu-features.h>
 195
 196 #include "content/renderer/android/address_detector.h"
 197 #include "content/renderer/android/content_detector.h"
 198 #include "content/renderer/android/email_detector.h"
 199 #include "content/renderer/android/phone_number_detector.h"
 200 #include "net/android/network_library.h"
 201 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 202 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 203 #include "ui/gfx/rect_f.h"
 204
 205 #elif defined(OS_WIN)
 206 // TODO(port): these files are currently Windows only because they concern:
 207 //   * theming
 208 #include "ui/native_theme/native_theme_win.h"
 209 #elif defined(USE_X11)
 210 #include "ui/native_theme/native_theme.h"
 211 #elif defined(OS_MACOSX)
 212 #include "skia/ext/skia_utils_mac.h"
 213 #endif
 214
 215 #if defined(ENABLE_PLUGINS)
 216 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 217 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 218 #include "content/renderer/pepper/pepper_plugin_registry.h"
 219 #endif
 220
 221 #if defined(ENABLE_WEBRTC)
 222 #include "content/renderer/media/rtc_peer_connection_handler.h"
 223 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 224 #endif
 225
 226 using blink::WebAXObject;
 227 using blink::WebApplicationCacheHost;
 228 using blink::WebApplicationCacheHostClient;
 229 using blink::WebCString;
 230 using blink::WebColor;
 231 using blink::WebColorName;
 232 using blink::WebConsoleMessage;
 233 using blink::WebData;
 234 using blink::WebDataSource;
 235 using blink::WebDocument;
 236 using blink::WebDOMEvent;
 237 using blink::WebDOMMessageEvent;
 238 using blink::WebDragData;
 239 using blink::WebDragOperation;
 240 using blink::WebDragOperationsMask;
 241 using blink::WebElement;
 242 using blink::WebFileChooserCompletion;
 243 using blink::WebFindOptions;
 244 using blink::WebFormControlElement;
 245 using blink::WebFormElement;
 246 using blink::WebFrame;
 247 using blink::WebGestureEvent;
 248 using blink::WebHistoryItem;
 249 using blink::WebHTTPBody;
 250 using blink::WebIconURL;
 251 using blink::WebImage;
 252 using blink::WebInputElement;
 253 using blink::WebInputEvent;
 254 using blink::WebLocalFrame;
 255 using blink::WebMediaPlayerAction;
 256 using blink::WebMouseEvent;
 257 using blink::WebNavigationPolicy;
 258 using blink::WebNavigationType;
 259 using blink::WebNode;
 260 using blink::WebPageSerializer;
 261 using blink::WebPageSerializerClient;
 262 using blink::WebPeerConnection00Handler;
 263 using blink::WebPeerConnection00HandlerClient;
 264 using blink::WebPeerConnectionHandler;
 265 using blink::WebPeerConnectionHandlerClient;
 266 using blink::WebPluginAction;
 267 using blink::WebPluginContainer;
 268 using blink::WebPluginDocument;
 269 using blink::WebPoint;
 270 using blink::WebRange;
 271 using blink::WebRect;
 272 using blink::WebReferrerPolicy;
 273 using blink::WebScriptSource;
 274 using blink::WebSearchableFormData;
 275 using blink::WebSecurityOrigin;
 276 using blink::WebSecurityPolicy;
 277 using blink::WebSerializedScriptValue;
 278 using blink::WebSettings;
 279 using blink::WebSize;
 280 using blink::WebStorageNamespace;
 281 using blink::WebStorageQuotaCallbacks;
 282 using blink::WebStorageQuotaError;
 283 using blink::WebStorageQuotaType;
 284 using blink::WebString;
 285 using blink::WebTextAffinity;
 286 using blink::WebTextDirection;
 287 using blink::WebTouchEvent;
 288 using blink::WebURL;
 289 using blink::WebURLError;
 290 using blink::WebURLRequest;
 291 using blink::WebURLResponse;
 292 using blink::WebUserGestureIndicator;
 293 using blink::WebVector;
 294 using blink::WebView;
 295 using blink::WebWidget;
 296 using blink::WebWindowFeatures;
 297 using blink::WebNetworkStateNotifier;
 298 using blink::WebRuntimeFeatures;
 299 using base::Time;
 300 using base::TimeDelta;
 301
 302 #if defined(OS_ANDROID)
 303 using blink::WebContentDetectionResult;
 304 using blink::WebFloatPoint;
 305 using blink::WebFloatRect;
 306 using blink::WebHitTestResult;
 307 #endif
 308
 309 namespace content {
 310
 311 //-----------------------------------------------------------------------------
 312
 313 typedef std::map<blink::WebView*, RenderViewImpl*> ViewMap;
 314 static base::LazyInstance<ViewMap> g_view_map = LAZY_INSTANCE_INITIALIZER;
 315 typedef std::map<int32, RenderViewImpl*> RoutingIDViewMap;
 316 static base::LazyInstance<RoutingIDViewMap> g_routing_id_view_map =
 317     LAZY_INSTANCE_INITIALIZER;
 318
 319 // Time, in seconds, we delay before sending content state changes (such as form
 320 // state and scroll position) to the browser. We delay sending changes to avoid
 321 // spamming the browser.
 322 // To avoid having tab/session restore require sending a message to get the
 323 // current content state during tab closing we use a shorter timeout for the
 324 // foreground renderer. This means there is a small window of time from which
 325 // content state is modified and not sent to session restore, but this is
 326 // better than having to wake up all renderers during shutdown.
 327 const int kDelaySecondsForContentStateSyncHidden = 5;
 328 const int kDelaySecondsForContentStateSync = 1;
 329
 330 #if defined(OS_ANDROID)
 331 // Delay between tapping in content and launching the associated android intent.
 332 // Used to allow users see what has been recognized as content.
 333 const size_t kContentIntentDelayMilliseconds = 700;
 334 #endif
 335
 336 static RenderViewImpl* (*g_create_render_view_impl)(RenderViewImplParams*) =
 337     NULL;
 338
 339 // static
 340 bool RenderViewImpl::IsReload(FrameMsg_Navigate_Type::Value navigation_type) {
 341   return navigation_type == FrameMsg_Navigate_Type::RELOAD ||
 342          navigation_type == FrameMsg_Navigate_Type::RELOAD_IGNORING_CACHE ||
 343          navigation_type == FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL;
 344 }
 345
 346 // static
 347 Referrer RenderViewImpl::GetReferrerFromRequest(
 348     WebFrame* frame,
 349     const WebURLRequest& request) {
 350   return Referrer(GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
 351                   request.referrerPolicy());
 352 }
 353
 354 // static
 355 WindowOpenDisposition RenderViewImpl::NavigationPolicyToDisposition(
 356     WebNavigationPolicy policy) {
 357   switch (policy) {
 358     case blink::WebNavigationPolicyIgnore:
 359       return IGNORE_ACTION;
 360     case blink::WebNavigationPolicyDownload:
 361       return SAVE_TO_DISK;
 362     case blink::WebNavigationPolicyCurrentTab:
 363       return CURRENT_TAB;
 364     case blink::WebNavigationPolicyNewBackgroundTab:
 365       return NEW_BACKGROUND_TAB;
 366     case blink::WebNavigationPolicyNewForegroundTab:
 367       return NEW_FOREGROUND_TAB;
 368     case blink::WebNavigationPolicyNewWindow:
 369       return NEW_WINDOW;
 370     case blink::WebNavigationPolicyNewPopup:
 371       return NEW_POPUP;
 372   default:
 373     NOTREACHED() << "Unexpected WebNavigationPolicy";
 374     return IGNORE_ACTION;
 375   }
 376 }
 377
 378 // Returns true if the device scale is high enough that losing subpixel
 379 // antialiasing won't have a noticeable effect on text quality.
 380 static bool DeviceScaleEnsuresTextQuality(float device_scale_factor) {
 381 #if defined(OS_ANDROID)
 382   // On Android, we never have subpixel antialiasing.
 383   return true;
 384 #else
 385   return device_scale_factor > 1.5f;
 386 #endif
 387
 388 }
 389
 390 static bool PreferCompositingToLCDText(float device_scale_factor) {
 391   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 392   if (command_line.HasSwitch(switches::kDisablePreferCompositingToLCDText))
 393     return false;
 394   if (command_line.HasSwitch(switches::kEnablePreferCompositingToLCDText))
 395     return true;
 396   if (RenderThreadImpl::current() &&
 397       !RenderThreadImpl::current()->is_lcd_text_enabled())
 398     return true;
 399   return DeviceScaleEnsuresTextQuality(device_scale_factor);
 400 }
 401
 402 static bool ShouldUseTransitionCompositing(float device_scale_factor) {
 403   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 404
 405   if (command_line.HasSwitch(switches::kDisableCompositingForTransition))
 406     return false;
 407
 408   if (command_line.HasSwitch(switches::kEnableCompositingForTransition))
 409     return true;
 410
 411   // TODO(ajuma): Re-enable this by default for high-DPI once the problem
 412   // of excessive layer promotion caused by overlap has been addressed.
 413   // http://crbug.com/178119.
 414   return false;
 415 }
 416
 417 static FaviconURL::IconType ToFaviconType(blink::WebIconURL::Type type) {
 418   switch (type) {
 419     case blink::WebIconURL::TypeFavicon:
 420       return FaviconURL::FAVICON;
 421     case blink::WebIconURL::TypeTouch:
 422       return FaviconURL::TOUCH_ICON;
 423     case blink::WebIconURL::TypeTouchPrecomposed:
 424       return FaviconURL::TOUCH_PRECOMPOSED_ICON;
 425     case blink::WebIconURL::TypeInvalid:
 426       return FaviconURL::INVALID_ICON;
 427   }
 428   return FaviconURL::INVALID_ICON;
 429 }
 430
 431 static void ConvertToFaviconSizes(
 432     const blink::WebVector<blink::WebSize>& web_sizes,
 433     std::vector<gfx::Size>* sizes) {
 434   DCHECK(sizes->empty());
 435   sizes->reserve(web_sizes.size());
 436   for (size_t i = 0; i < web_sizes.size(); ++i)
 437     sizes->push_back(gfx::Size(web_sizes[i]));
 438 }
 439
 440 ///////////////////////////////////////////////////////////////////////////////
 441
 442 struct RenderViewImpl::PendingFileChooser {
 443   PendingFileChooser(const FileChooserParams& p, WebFileChooserCompletion* c)
 444       : params(p),
 445         completion(c) {
 446   }
 447   FileChooserParams params;
 448   WebFileChooserCompletion* completion;  // MAY BE NULL to skip callback.
 449 };
 450
 451 namespace {
 452
 453 class WebWidgetLockTarget : public MouseLockDispatcher::LockTarget {
 454  public:
 455   explicit WebWidgetLockTarget(blink::WebWidget* webwidget)
 456       : webwidget_(webwidget) {}
 457
 458   void OnLockMouseACK(bool succeeded) override {
 459     if (succeeded)
 460       webwidget_->didAcquirePointerLock();
 461     else
 462       webwidget_->didNotAcquirePointerLock();
 463   }
 464
 465   void OnMouseLockLost() override { webwidget_->didLosePointerLock(); }
 466
 467   bool HandleMouseLockedInputEvent(const blink::WebMouseEvent& event) override {
 468     // The WebWidget handles mouse lock in WebKit's handleInputEvent().
 469     return false;
 470   }
 471
 472  private:
 473   blink::WebWidget* webwidget_;
 474 };
 475
 476 bool TouchEnabled() {
 477 // Based on the definition of chrome::kEnableTouchIcon.
 478 #if defined(OS_ANDROID)
 479   return true;
 480 #else
 481   return false;
 482 #endif
 483 }
 484
 485 WebDragData DropDataToWebDragData(const DropData& drop_data) {
 486   std::vector<WebDragData::Item> item_list;
 487
 488   // These fields are currently unused when dragging into WebKit.
 489   DCHECK(drop_data.download_metadata.empty());
 490   DCHECK(drop_data.file_contents.empty());
 491   DCHECK(drop_data.file_description_filename.empty());
 492
 493   if (!drop_data.text.is_null()) {
 494     WebDragData::Item item;
 495     item.storageType = WebDragData::Item::StorageTypeString;
 496     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeText);
 497     item.stringData = drop_data.text.string();
 498     item_list.push_back(item);
 499   }
 500
 501   // TODO(dcheng): Do we need to distinguish between null and empty URLs? Is it
 502   // meaningful to write an empty URL to the clipboard?
 503   if (!drop_data.url.is_empty()) {
 504     WebDragData::Item item;
 505     item.storageType = WebDragData::Item::StorageTypeString;
 506     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeURIList);
 507     item.stringData = WebString::fromUTF8(drop_data.url.spec());
 508     item.title = drop_data.url_title;
 509     item_list.push_back(item);
 510   }
 511
 512   if (!drop_data.html.is_null()) {
 513     WebDragData::Item item;
 514     item.storageType = WebDragData::Item::StorageTypeString;
 515     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeHTML);
 516     item.stringData = drop_data.html.string();
 517     item.baseURL = drop_data.html_base_url;
 518     item_list.push_back(item);
 519   }
 520
 521   for (std::vector<ui::FileInfo>::const_iterator it =
 522            drop_data.filenames.begin();
 523        it != drop_data.filenames.end();
 524        ++it) {
 525     WebDragData::Item item;
 526     item.storageType = WebDragData::Item::StorageTypeFilename;
 527     item.filenameData = it->path.AsUTF16Unsafe();
 528     item.displayNameData = it->display_name.AsUTF16Unsafe();
 529     item_list.push_back(item);
 530   }
 531
 532   for (std::vector<DropData::FileSystemFileInfo>::const_iterator it =
 533            drop_data.file_system_files.begin();
 534        it != drop_data.file_system_files.end();
 535        ++it) {
 536     WebDragData::Item item;
 537     item.storageType = WebDragData::Item::StorageTypeFileSystemFile;
 538     item.fileSystemURL = it->url;
 539     item.fileSystemFileSize = it->size;
 540     item_list.push_back(item);
 541   }
 542
 543   for (std::map<base::string16, base::string16>::const_iterator it =
 544            drop_data.custom_data.begin();
 545        it != drop_data.custom_data.end();
 546        ++it) {
 547     WebDragData::Item item;
 548     item.storageType = WebDragData::Item::StorageTypeString;
 549     item.stringType = it->first;
 550     item.stringData = it->second;
 551     item_list.push_back(item);
 552   }
 553
 554   WebDragData result;
 555   result.initialize();
 556   result.setItems(item_list);
 557   result.setFilesystemId(drop_data.filesystem_id);
 558   return result;
 559 }
 560
 561 typedef void (*SetFontFamilyWrapper)(blink::WebSettings*,
 562                                      const base::string16&,
 563                                      UScriptCode);
 564
 565 void SetStandardFontFamilyWrapper(WebSettings* settings,
 566                                   const base::string16& font,
 567                                   UScriptCode script) {
 568   settings->setStandardFontFamily(font, script);
 569 }
 570
 571 void SetFixedFontFamilyWrapper(WebSettings* settings,
 572                                const base::string16& font,
 573                                UScriptCode script) {
 574   settings->setFixedFontFamily(font, script);
 575 }
 576
 577 void SetSerifFontFamilyWrapper(WebSettings* settings,
 578                                const base::string16& font,
 579                                UScriptCode script) {
 580   settings->setSerifFontFamily(font, script);
 581 }
 582
 583 void SetSansSerifFontFamilyWrapper(WebSettings* settings,
 584                                    const base::string16& font,
 585                                    UScriptCode script) {
 586   settings->setSansSerifFontFamily(font, script);
 587 }
 588
 589 void SetCursiveFontFamilyWrapper(WebSettings* settings,
 590                                  const base::string16& font,
 591                                  UScriptCode script) {
 592   settings->setCursiveFontFamily(font, script);
 593 }
 594
 595 void SetFantasyFontFamilyWrapper(WebSettings* settings,
 596                                  const base::string16& font,
 597                                  UScriptCode script) {
 598   settings->setFantasyFontFamily(font, script);
 599 }
 600
 601 void SetPictographFontFamilyWrapper(WebSettings* settings,
 602                                     const base::string16& font,
 603                                     UScriptCode script) {
 604   settings->setPictographFontFamily(font, script);
 605 }
 606
 607 // If |scriptCode| is a member of a family of "similar" script codes, returns
 608 // the script code in that family that is used by WebKit for font selection
 609 // purposes.  For example, USCRIPT_KATAKANA_OR_HIRAGANA and USCRIPT_JAPANESE are
 610 // considered equivalent for the purposes of font selection.  WebKit uses the
 611 // script code USCRIPT_KATAKANA_OR_HIRAGANA.  So, if |scriptCode| is
 612 // USCRIPT_JAPANESE, the function returns USCRIPT_KATAKANA_OR_HIRAGANA.  WebKit
 613 // uses different scripts than the ones in Chrome pref names because the version
 614 // of ICU included on certain ports does not have some of the newer scripts.  If
 615 // |scriptCode| is not a member of such a family, returns |scriptCode|.
 616 UScriptCode GetScriptForWebSettings(UScriptCode scriptCode) {
 617   switch (scriptCode) {
 618     case USCRIPT_HIRAGANA:
 619     case USCRIPT_KATAKANA:
 620     case USCRIPT_JAPANESE:
 621       return USCRIPT_KATAKANA_OR_HIRAGANA;
 622     case USCRIPT_KOREAN:
 623       return USCRIPT_HANGUL;
 624     default:
 625       return scriptCode;
 626   }
 627 }
 628
 629 void ApplyFontsFromMap(const ScriptFontFamilyMap& map,
 630                        SetFontFamilyWrapper setter,
 631                        WebSettings* settings) {
 632   for (ScriptFontFamilyMap::const_iterator it = map.begin(); it != map.end();
 633        ++it) {
 634     int32 script = u_getPropertyValueEnum(UCHAR_SCRIPT, (it->first).c_str());
 635     if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
 636       UScriptCode code = static_cast<UScriptCode>(script);
 637       (*setter)(settings, it->second, GetScriptForWebSettings(code));
 638     }
 639   }
 640 }
 641
 642 }  // namespace
 643
 644 RenderViewImpl::RenderViewImpl(RenderViewImplParams* params)
 645     : RenderWidget(blink::WebPopupTypeNone,
 646                    params->screen_info,
 647                    params->swapped_out,
 648                    params->hidden,
 649                    params->never_visible),
 650       webkit_preferences_(params->webkit_prefs),
 651       send_content_state_immediately_(false),
 652       enabled_bindings_(0),
 653       send_preferred_size_changes_(false),
 654       navigation_gesture_(NavigationGestureUnknown),
 655       opened_by_user_gesture_(true),
 656       opener_suppressed_(false),
 657       suppress_dialogs_until_swap_out_(false),
 658       page_id_(-1),
 659       last_page_id_sent_to_browser_(-1),
 660       next_page_id_(params->next_page_id),
 661       history_list_offset_(-1),
 662       history_list_length_(0),
 663       frames_in_progress_(0),
 664       target_url_status_(TARGET_NONE),
 665       uses_temporary_zoom_level_(false),
 666 #if defined(OS_ANDROID)
 667       top_controls_constraints_(cc::BOTH),
 668 #endif
 669       has_scrolled_focused_editable_node_into_rect_(false),
 670       speech_recognition_dispatcher_(NULL),
 671       browser_plugin_manager_(NULL),
 672       devtools_agent_(NULL),
 673       mouse_lock_dispatcher_(NULL),
 674 #if defined(OS_ANDROID)
 675       expected_content_intent_id_(0),
 676 #endif
 677 #if defined(OS_WIN)
 678       focused_plugin_id_(-1),
 679 #endif
 680 #if defined(ENABLE_PLUGINS)
 681       plugin_find_handler_(NULL),
 682       focused_pepper_plugin_(NULL),
 683       pepper_last_mouse_event_target_(NULL),
 684 #endif
 685       enumeration_completion_id_(0),
 686       session_storage_namespace_id_(params->session_storage_namespace_id),
 687       next_snapshot_id_(0) {
 688 }
 689
 690 void RenderViewImpl::Initialize(RenderViewImplParams* params) {
 691   routing_id_ = params->routing_id;
 692   surface_id_ = params->surface_id;
 693   if (params->opener_id != MSG_ROUTING_NONE && params->is_renderer_created)
 694     opener_id_ = params->opener_id;
 695
 696   // Ensure we start with a valid next_page_id_ from the browser.
 697   DCHECK_GE(next_page_id_, 0);
 698
 699   main_render_frame_.reset(RenderFrameImpl::Create(
 700       this, params->main_frame_routing_id));
 701   // The main frame WebLocalFrame object is closed by
 702   // RenderFrameImpl::frameDetached().
 703   WebLocalFrame* web_frame = WebLocalFrame::create(main_render_frame_.get());
 704   main_render_frame_->SetWebFrame(web_frame);
 705
 706   webwidget_ = WebView::create(this);
 707   webwidget_mouse_lock_target_.reset(new WebWidgetLockTarget(webwidget_));
 708
 709   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 710
 711   if (command_line.HasSwitch(switches::kStatsCollectionController))
 712     stats_collection_observer_.reset(new StatsCollectionObserver(this));
 713
 714 #if defined(OS_ANDROID)
 715   const std::string region_code =
 716       command_line.HasSwitch(switches::kNetworkCountryIso)
 717           ? command_line.GetSwitchValueASCII(switches::kNetworkCountryIso)
 718           : net::android::GetTelephonyNetworkCountryIso();
 719   content_detectors_.push_back(linked_ptr<ContentDetector>(
 720       new AddressDetector()));
 721   content_detectors_.push_back(linked_ptr<ContentDetector>(
 722       new PhoneNumberDetector(region_code)));
 723   content_detectors_.push_back(linked_ptr<ContentDetector>(
 724       new EmailDetector()));
 725 #endif
 726
 727   RenderThread::Get()->AddRoute(routing_id_, this);
 728   // Take a reference on behalf of the RenderThread.  This will be balanced
 729   // when we receive ViewMsg_ClosePage.
 730   AddRef();
 731   if (RenderThreadImpl::current()) {
 732     RenderThreadImpl::current()->WidgetCreated();
 733     if (is_hidden_)
 734       RenderThreadImpl::current()->WidgetHidden();
 735   }
 736
 737   // If this is a popup, we must wait for the CreatingNew_ACK message before
 738   // completing initialization.  Otherwise, we can finish it now.
 739   if (opener_id_ == MSG_ROUTING_NONE) {
 740     did_show_ = true;
 741     CompleteInit();
 742   }
 743
 744   g_view_map.Get().insert(std::make_pair(webview(), this));
 745   g_routing_id_view_map.Get().insert(std::make_pair(routing_id_, this));
 746   webview()->setDeviceScaleFactor(device_scale_factor_);
 747   webview()->settings()->setPreferCompositingToLCDTextEnabled(
 748       PreferCompositingToLCDText(device_scale_factor_));
 749   webview()->settings()->setAcceleratedCompositingForTransitionEnabled(
 750       ShouldUseTransitionCompositing(device_scale_factor_));
 751   webview()->settings()->setThreadedScrollingEnabled(
 752       !command_line.HasSwitch(switches::kDisableThreadedScrolling));
 753   webview()->settings()->setRootLayerScrolls(
 754       command_line.HasSwitch(switches::kRootLayerScrolls));
 755
 756   ApplyWebPreferences(webkit_preferences_, webview());
 757
 758   webview()->settings()->setAllowConnectingInsecureWebSocket(
 759       command_line.HasSwitch(switches::kAllowInsecureWebSocketFromHttpsOrigin));
 760
 761   RenderFrameProxy* proxy = NULL;
 762   if (params->proxy_routing_id != MSG_ROUTING_NONE) {
 763     CHECK(params->swapped_out);
 764     proxy = RenderFrameProxy::CreateProxyToReplaceFrame(
 765         main_render_frame_.get(), params->proxy_routing_id);
 766     main_render_frame_->set_render_frame_proxy(proxy);
 767   }
 768
 769   // In --site-per-process, just use the WebRemoteFrame as the main frame.
 770   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSitePerProcess) &&
 771       proxy) {
 772     webview()->setMainFrame(proxy->web_frame());
 773   } else {
 774     webview()->setMainFrame(main_render_frame_->GetWebFrame());
 775   }
 776   main_render_frame_->Initialize();
 777
 778   if (switches::IsTouchDragDropEnabled())
 779     webview()->settings()->setTouchDragDropEnabled(true);
 780
 781   if (switches::IsTouchEditingEnabled())
 782     webview()->settings()->setTouchEditingEnabled(true);
 783
 784   if (!params->frame_name.empty())
 785     webview()->mainFrame()->setName(params->frame_name);
 786
 787   // TODO(davidben): Move this state from Blink into content.
 788   if (params->window_was_created_with_opener)
 789     webview()->setOpenedByDOM();
 790
 791   OnSetRendererPrefs(params->renderer_prefs);
 792
 793   new MHTMLGenerator(this);
 794 #if defined(OS_MACOSX)
 795   new TextInputClientObserver(this);
 796 #endif  // defined(OS_MACOSX)
 797
 798   // The next group of objects all implement RenderViewObserver, so are deleted
 799   // along with the RenderView automatically.
 800   devtools_agent_ = new DevToolsAgent(this);
 801   if (RenderWidgetCompositor* rwc = compositor()) {
 802     webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
 803   }
 804   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
 805
 806   history_controller_.reset(new HistoryController(this));
 807
 808   new IdleUserDetector(this);
 809
 810   if (command_line.HasSwitch(switches::kDomAutomationController))
 811     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
 812   if (command_line.HasSwitch(switches::kStatsCollectionController))
 813     enabled_bindings_ |= BINDINGS_POLICY_STATS_COLLECTION;
 814
 815   ProcessViewLayoutFlags(command_line);
 816
 817   GetContentClient()->renderer()->RenderViewCreated(this);
 818
 819   // If we have an opener_id but we weren't created by a renderer, then
 820   // it's the browser asking us to set our opener to another RenderView.
 821   if (params->opener_id != MSG_ROUTING_NONE && !params->is_renderer_created) {
 822     RenderViewImpl* opener_view = FromRoutingID(params->opener_id);
 823     if (opener_view)
 824       webview()->mainFrame()->setOpener(opener_view->webview()->mainFrame());
 825   }
 826
 827   // If we are initially swapped out, navigate to kSwappedOutURL.
 828   // This ensures we are in a unique origin that others cannot script.
 829   if (is_swapped_out_ && webview()->mainFrame()->isWebLocalFrame())
 830     NavigateToSwappedOutURL(webview()->mainFrame());
 831 }
 832
 833 RenderViewImpl::~RenderViewImpl() {
 834   for (BitmapMap::iterator it = disambiguation_bitmaps_.begin();
 835        it != disambiguation_bitmaps_.end();
 836        ++it)
 837     delete it->second;
 838   history_page_ids_.clear();
 839
 840   base::debug::TraceLog::GetInstance()->RemoveProcessLabel(routing_id_);
 841
 842   // If file chooser is still waiting for answer, dispatch empty answer.
 843   while (!file_chooser_completions_.empty()) {
 844     if (file_chooser_completions_.front()->completion) {
 845       file_chooser_completions_.front()->completion->didChooseFile(
 846           WebVector<WebString>());
 847     }
 848     file_chooser_completions_.pop_front();
 849   }
 850
 851 #if defined(OS_ANDROID)
 852   // The date/time picker client is both a scoped_ptr member of this class and
 853   // a RenderViewObserver. Reset it to prevent double deletion.
 854   date_time_picker_client_.reset();
 855 #endif
 856
 857 #ifndef NDEBUG
 858   // Make sure we are no longer referenced by the ViewMap or RoutingIDViewMap.
 859   ViewMap* views = g_view_map.Pointer();
 860   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
 861     DCHECK_NE(this, it->second) << "Failed to call Close?";
 862   RoutingIDViewMap* routing_id_views = g_routing_id_view_map.Pointer();
 863   for (RoutingIDViewMap::iterator it = routing_id_views->begin();
 864        it != routing_id_views->end(); ++it)
 865     DCHECK_NE(this, it->second) << "Failed to call Close?";
 866 #endif
 867
 868   FOR_EACH_OBSERVER(RenderViewObserver, observers_, RenderViewGone());
 869   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnDestruct());
 870 }
 871
 872 /*static*/
 873 RenderViewImpl* RenderViewImpl::FromWebView(WebView* webview) {
 874   ViewMap* views = g_view_map.Pointer();
 875   ViewMap::iterator it = views->find(webview);
 876   return it == views->end() ? NULL : it->second;
 877 }
 878
 879 /*static*/
 880 RenderView* RenderView::FromWebView(blink::WebView* webview) {
 881   return RenderViewImpl::FromWebView(webview);
 882 }
 883
 884 /*static*/
 885 RenderViewImpl* RenderViewImpl::FromRoutingID(int32 routing_id) {
 886   RoutingIDViewMap* views = g_routing_id_view_map.Pointer();
 887   RoutingIDViewMap::iterator it = views->find(routing_id);
 888   return it == views->end() ? NULL : it->second;
 889 }
 890
 891 /*static*/
 892 RenderView* RenderView::FromRoutingID(int routing_id) {
 893   return RenderViewImpl::FromRoutingID(routing_id);
 894 }
 895
 896 /* static */
 897 size_t RenderViewImpl::GetRenderViewCount() {
 898   return g_view_map.Get().size();
 899 }
 900
 901 /*static*/
 902 void RenderView::ForEach(RenderViewVisitor* visitor) {
 903   ViewMap* views = g_view_map.Pointer();
 904   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it) {
 905     if (!visitor->Visit(it->second))
 906       return;
 907   }
 908 }
 909
 910 /*static*/
 911 void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
 912                                      WebView* web_view) {
 913   WebSettings* settings = web_view->settings();
 914   ApplyFontsFromMap(prefs.standard_font_family_map,
 915                     SetStandardFontFamilyWrapper, settings);
 916   ApplyFontsFromMap(prefs.fixed_font_family_map,
 917                     SetFixedFontFamilyWrapper, settings);
 918   ApplyFontsFromMap(prefs.serif_font_family_map,
 919                     SetSerifFontFamilyWrapper, settings);
 920   ApplyFontsFromMap(prefs.sans_serif_font_family_map,
 921                     SetSansSerifFontFamilyWrapper, settings);
 922   ApplyFontsFromMap(prefs.cursive_font_family_map,
 923                     SetCursiveFontFamilyWrapper, settings);
 924   ApplyFontsFromMap(prefs.fantasy_font_family_map,
 925                     SetFantasyFontFamilyWrapper, settings);
 926   ApplyFontsFromMap(prefs.pictograph_font_family_map,
 927                     SetPictographFontFamilyWrapper, settings);
 928   settings->setDefaultFontSize(prefs.default_font_size);
 929   settings->setDefaultFixedFontSize(prefs.default_fixed_font_size);
 930   settings->setMinimumFontSize(prefs.minimum_font_size);
 931   settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
 932   settings->setDefaultTextEncodingName(
 933       base::ASCIIToUTF16(prefs.default_encoding));
 934   settings->setJavaScriptEnabled(prefs.javascript_enabled);
 935   settings->setWebSecurityEnabled(prefs.web_security_enabled);
 936   settings->setJavaScriptCanOpenWindowsAutomatically(
 937       prefs.javascript_can_open_windows_automatically);
 938   settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
 939   settings->setImagesEnabled(prefs.images_enabled);
 940   settings->setPluginsEnabled(prefs.plugins_enabled);
 941   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
 942   settings->setShrinksStandaloneImagesToFit(
 943       prefs.shrinks_standalone_images_to_fit);
 944   settings->setUsesEncodingDetector(prefs.uses_universal_detector);
 945   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
 946   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
 947   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
 948   settings->setJavaScriptCanAccessClipboard(
 949       prefs.javascript_can_access_clipboard);
 950   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
 951   WebRuntimeFeatures::enableSlimmingPaint(prefs.slimming_paint_enabled);
 952   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
 953   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
 954   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
 955   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
 956   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
 957   settings->setOfflineWebApplicationCacheEnabled(
 958       prefs.application_cache_enabled);
 959   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
 960   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
 961   settings->setCookieEnabled(prefs.cookie_enabled);
 962   settings->setNavigateOnDragDrop(prefs.navigate_on_drag_drop);
 963
 964   settings->setJavaEnabled(prefs.java_enabled);
 965
 966   // By default, allow_universal_access_from_file_urls is set to false and thus
 967   // we mitigate attacks from local HTML files by not granting file:// URLs
 968   // universal access. Only test shell will enable this.
 969   settings->setAllowUniversalAccessFromFileURLs(
 970       prefs.allow_universal_access_from_file_urls);
 971   settings->setAllowFileAccessFromFileURLs(
 972       prefs.allow_file_access_from_file_urls);
 973
 974   // Enable the web audio API if requested on the command line.
 975   settings->setWebAudioEnabled(prefs.webaudio_enabled);
 976
 977   // Enable experimental WebGL support if requested on command line
 978   // and support is compiled in.
 979   settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled);
 980
 981   // Disable GL multisampling if requested on command line.
 982   settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled);
 983
 984   // Enable WebGL errors to the JS console if requested.
 985   settings->setWebGLErrorsToConsoleEnabled(
 986       prefs.webgl_errors_to_console_enabled);
 987
 988   // Uses the mock theme engine for scrollbars.
 989   settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled);
 990
 991   settings->setLayerSquashingEnabled(prefs.layer_squashing_enabled);
 992
 993   // Enable gpu-accelerated 2d canvas if requested on the command line.
 994   settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled);
 995
 996   settings->setMinimumAccelerated2dCanvasSize(
 997       prefs.minimum_accelerated_2d_canvas_size);
 998
 999   // Disable antialiasing for 2d canvas if requested on the command line.
1000   settings->setAntialiased2dCanvasEnabled(
1001       !prefs.antialiased_2d_canvas_disabled);
1002
1003   // Enabled antialiasing of clips for 2d canvas if requested on the command
1004   // line.
1005   settings->setAntialiasedClips2dCanvasEnabled(
1006       prefs.antialiased_clips_2d_canvas_enabled);
1007
1008   // Set MSAA sample count for 2d canvas if requested on the command line (or
1009   // default value if not).
1010   settings->setAccelerated2dCanvasMSAASampleCount(
1011       prefs.accelerated_2d_canvas_msaa_sample_count);
1012
1013   // Enable container culling if requested on the command line.
1014   settings->setContainerCullingEnabled(prefs.container_culling_enabled);
1015
1016   WebRuntimeFeatures::enableTextBlobs(prefs.text_blobs_enabled);
1017
1018   settings->setAsynchronousSpellCheckingEnabled(
1019       prefs.asynchronous_spell_checking_enabled);
1020   settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled);
1021
1022   // Tabs to link is not part of the settings. WebCore calls
1023   // ChromeClient::tabsToLinks which is part of the glue code.
1024   web_view->setTabsToLinks(prefs.tabs_to_links);
1025
1026   settings->setAllowDisplayOfInsecureContent(
1027       prefs.allow_displaying_insecure_content);
1028   settings->setAllowRunningOfInsecureContent(
1029       prefs.allow_running_insecure_content);
1030   settings->setPasswordEchoEnabled(prefs.password_echo_enabled);
1031   settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds);
1032   settings->setShouldClearDocumentBackground(
1033       prefs.should_clear_document_background);
1034   settings->setEnableScrollAnimator(prefs.enable_scroll_animator);
1035
1036   settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled);
1037
1038   WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
1039   settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
1040   settings->setDeviceSupportsTouch(prefs.device_supports_touch);
1041   settings->setDeviceSupportsMouse(prefs.device_supports_mouse);
1042   settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled);
1043
1044   settings->setDeferredImageDecodingEnabled(
1045       prefs.deferred_image_decoding_enabled);
1046   WebRuntimeFeatures::enableImageColorProfiles(
1047       prefs.image_color_profiles_enabled);
1048   settings->setShouldRespectImageOrientation(
1049       prefs.should_respect_image_orientation);
1050
1051   settings->setUnsafePluginPastingEnabled(false);
1052   settings->setEditingBehavior(
1053       static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior));
1054
1055   settings->setSupportsMultipleWindows(prefs.supports_multiple_windows);
1056
1057   settings->setViewportEnabled(prefs.viewport_enabled);
1058   settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale);
1059   settings->setViewportMetaEnabled(prefs.viewport_meta_enabled);
1060   settings->setMainFrameResizesAreOrientationChanges(
1061       prefs.main_frame_resizes_are_orientation_changes);
1062
1063   settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled);
1064
1065   settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
1066
1067   settings->setSelectionIncludesAltImageText(true);
1068
1069   settings->setV8CacheOptions(
1070       static_cast<WebSettings::V8CacheOptions>(prefs.v8_cache_options));
1071
1072   settings->setV8ScriptStreamingEnabled(prefs.v8_script_streaming_enabled);
1073   settings->setV8ScriptStreamingMode(
1074       static_cast<WebSettings::V8ScriptStreamingMode>(
1075           prefs.v8_script_streaming_mode));
1076
1077 #if defined(OS_ANDROID)
1078   settings->setAllowCustomScrollbarInMainFrame(false);
1079   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
1080   settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor);
1081   settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
1082   settings->setFullscreenSupported(prefs.fullscreen_supported);
1083   web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom);
1084   settings->setAutoZoomFocusedNodeToLegibleScale(true);
1085   settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled);
1086   settings->setMediaControlsOverlayPlayButtonEnabled(true);
1087   settings->setMediaPlaybackRequiresUserGesture(
1088       prefs.user_gesture_required_for_media_playback);
1089   settings->setDefaultVideoPosterURL(
1090         base::ASCIIToUTF16(prefs.default_video_poster_url.spec()));
1091   settings->setSupportDeprecatedTargetDensityDPI(
1092       prefs.support_deprecated_target_density_dpi);
1093   settings->setUseLegacyBackgroundSizeShorthandBehavior(
1094       prefs.use_legacy_background_size_shorthand_behavior);
1095   settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk);
1096   settings->setUseWideViewport(prefs.use_wide_viewport);
1097   settings->setForceZeroLayoutHeight(prefs.force_zero_layout_height);
1098   settings->setViewportMetaLayoutSizeQuirk(
1099       prefs.viewport_meta_layout_size_quirk);
1100   settings->setViewportMetaMergeContentQuirk(
1101       prefs.viewport_meta_merge_content_quirk);
1102   settings->setViewportMetaNonUserScalableQuirk(
1103       prefs.viewport_meta_non_user_scalable_quirk);
1104   settings->setViewportMetaZeroValuesQuirk(
1105       prefs.viewport_meta_zero_values_quirk);
1106   settings->setClobberUserAgentInitialScaleQuirk(
1107       prefs.clobber_user_agent_initial_scale_quirk);
1108   settings->setIgnoreMainFrameOverflowHiddenQuirk(
1109       prefs.ignore_main_frame_overflow_hidden_quirk);
1110   settings->setReportScreenSizeInPhysicalPixelsQuirk(
1111       prefs.report_screen_size_in_physical_pixels_quirk);
1112   settings->setMainFrameClipsContent(false);
1113   settings->setShrinksStandaloneImagesToFit(false);
1114   settings->setShrinksViewportContentToFit(true);
1115 #endif
1116
1117   WebNetworkStateNotifier::setOnLine(prefs.is_online);
1118   WebNetworkStateNotifier::setWebConnectionType(
1119       NetConnectionTypeToWebConnectionType(prefs.connection_type));
1120   settings->setPinchVirtualViewportEnabled(
1121       prefs.pinch_virtual_viewport_enabled);
1122
1123   settings->setPinchOverlayScrollbarThickness(
1124       prefs.pinch_overlay_scrollbar_thickness);
1125   settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars);
1126 }
1127
1128 /*static*/
1129 RenderViewImpl* RenderViewImpl::Create(
1130     int32 opener_id,
1131     bool window_was_created_with_opener,
1132     const RendererPreferences& renderer_prefs,
1133     const WebPreferences& webkit_prefs,
1134     int32 routing_id,
1135     int32 main_frame_routing_id,
1136     int32 surface_id,
1137     int64 session_storage_namespace_id,
1138     const base::string16& frame_name,
1139     bool is_renderer_created,
1140     bool swapped_out,
1141     int32 proxy_routing_id,
1142     bool hidden,
1143     bool never_visible,
1144     int32 next_page_id,
1145     const blink::WebScreenInfo& screen_info) {
1146   DCHECK(routing_id != MSG_ROUTING_NONE);
1147   RenderViewImplParams params(opener_id,
1148                               window_was_created_with_opener,
1149                               renderer_prefs,
1150                               webkit_prefs,
1151                               routing_id,
1152                               main_frame_routing_id,
1153                               surface_id,
1154                               session_storage_namespace_id,
1155                               frame_name,
1156                               is_renderer_created,
1157                               swapped_out,
1158                               proxy_routing_id,
1159                               hidden,
1160                               never_visible,
1161                               next_page_id,
1162                               screen_info);
1163   RenderViewImpl* render_view = NULL;
1164   if (g_create_render_view_impl)
1165     render_view = g_create_render_view_impl(&params);
1166   else
1167     render_view = new RenderViewImpl(&params);
1168
1169   render_view->Initialize(&params);
1170   return render_view;
1171 }
1172
1173 // static
1174 void RenderViewImpl::InstallCreateHook(
1175     RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*)) {
1176   CHECK(!g_create_render_view_impl);
1177   g_create_render_view_impl = create_render_view_impl;
1178 }
1179
1180 void RenderViewImpl::AddObserver(RenderViewObserver* observer) {
1181   observers_.AddObserver(observer);
1182 }
1183
1184 void RenderViewImpl::RemoveObserver(RenderViewObserver* observer) {
1185   observer->RenderViewGone();
1186   observers_.RemoveObserver(observer);
1187 }
1188
1189 blink::WebView* RenderViewImpl::webview() const {
1190   return static_cast<blink::WebView*>(webwidget());
1191 }
1192
1193 #if defined(ENABLE_PLUGINS)
1194 void RenderViewImpl::PepperInstanceCreated(
1195     PepperPluginInstanceImpl* instance) {
1196   active_pepper_instances_.insert(instance);
1197 }
1198
1199 void RenderViewImpl::PepperInstanceDeleted(
1200     PepperPluginInstanceImpl* instance) {
1201   active_pepper_instances_.erase(instance);
1202
1203   if (pepper_last_mouse_event_target_ == instance)
1204     pepper_last_mouse_event_target_ = NULL;
1205   if (focused_pepper_plugin_ == instance)
1206     PepperFocusChanged(instance, false);
1207 }
1208
1209 void RenderViewImpl::PepperFocusChanged(PepperPluginInstanceImpl* instance,
1210                                         bool focused) {
1211   if (focused)
1212     focused_pepper_plugin_ = instance;
1213   else if (focused_pepper_plugin_ == instance)
1214     focused_pepper_plugin_ = NULL;
1215
1216   UpdateTextInputType();
1217   UpdateSelectionBounds();
1218 }
1219
1220 void RenderViewImpl::RegisterPluginDelegate(WebPluginDelegateProxy* delegate) {
1221   plugin_delegates_.insert(delegate);
1222   // If the renderer is visible, set initial visibility and focus state.
1223   if (!is_hidden()) {
1224 #if defined(OS_MACOSX)
1225     delegate->SetContainerVisibility(true);
1226     if (webview() && webview()->isActive())
1227       delegate->SetWindowFocus(true);
1228 #endif
1229   }
1230   // Plugins start assuming the content has focus (so that they work in
1231   // environments where RenderView isn't hosting them), so we always have to
1232   // set the initial state. See webplugin_delegate_impl.h for details.
1233   delegate->SetContentAreaFocus(has_focus());
1234 }
1235
1236 void RenderViewImpl::UnregisterPluginDelegate(
1237     WebPluginDelegateProxy* delegate) {
1238   plugin_delegates_.erase(delegate);
1239 }
1240
1241 #if defined(OS_WIN)
1242 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1243   if (focused)
1244     focused_plugin_id_ = plugin_id;
1245   else
1246     focused_plugin_id_ = -1;
1247 }
1248 #endif
1249
1250 #if defined(OS_MACOSX)
1251 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1252   Send(new ViewHostMsg_PluginFocusChanged(routing_id(), focused, plugin_id));
1253 }
1254
1255 void RenderViewImpl::OnGetRenderedText() {
1256   if (!webview())
1257     return;
1258   // Get rendered text from WebLocalFrame.
1259   // TODO: Currently IPC truncates any data that has a
1260   // size > kMaximumMessageSize. May be split the text into smaller chunks and
1261   // send back using multiple IPC. See http://crbug.com/393444.
1262   static const size_t kMaximumMessageSize = 8 * 1024 * 1024;
1263   std::string text = webview()->mainFrame()->contentAsText(
1264       kMaximumMessageSize).utf8();
1265
1266   Send(new ViewMsg_GetRenderedTextCompleted(routing_id(), text));
1267 }
1268
1269 void RenderViewImpl::StartPluginIme() {
1270   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
1271   // This message can be sent during event-handling, and needs to be delivered
1272   // within that context.
1273   msg->set_unblock(true);
1274   Send(msg);
1275 }
1276 #endif  // defined(OS_MACOSX)
1277
1278 #endif  // ENABLE_PLUGINS
1279
1280 void RenderViewImpl::TransferActiveWheelFlingAnimation(
1281     const blink::WebActiveWheelFlingParameters& params) {
1282   if (webview())
1283     webview()->transferActiveWheelFlingAnimation(params);
1284 }
1285
1286 bool RenderViewImpl::HasIMETextFocus() {
1287   return GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE;
1288 }
1289
1290 bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
1291   WebFrame* main_frame = webview() ? webview()->mainFrame() : NULL;
1292   if (main_frame && main_frame->isWebLocalFrame())
1293     GetContentClient()->SetActiveURL(main_frame->document().url());
1294
1295   ObserverListBase<RenderViewObserver>::Iterator it(observers_);
1296   RenderViewObserver* observer;
1297   while ((observer = it.GetNext()) != NULL)
1298     if (observer->OnMessageReceived(message))
1299       return true;
1300
1301   bool handled = true;
1302   IPC_BEGIN_MESSAGE_MAP(RenderViewImpl, message)
1303     IPC_MESSAGE_HANDLER(InputMsg_ExecuteEditCommand, OnExecuteEditCommand)
1304     IPC_MESSAGE_HANDLER(InputMsg_MoveCaret, OnMoveCaret)
1305     IPC_MESSAGE_HANDLER(InputMsg_ScrollFocusedEditableNodeIntoRect,
1306                         OnScrollFocusedEditableNodeIntoRect)
1307     IPC_MESSAGE_HANDLER(InputMsg_SetEditCommandsForNextKeyEvent,
1308                         OnSetEditCommandsForNextKeyEvent)
1309     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
1310     IPC_MESSAGE_HANDLER(ViewMsg_SaveImageAt, OnSaveImageAt)
1311     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
1312     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
1313     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
1314     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
1315                         OnSetZoomLevelForLoadingURL)
1316     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForView,
1317                         OnSetZoomLevelForView)
1318     IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
1319     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
1320                         OnResetPageEncodingToDefault)
1321     IPC_MESSAGE_HANDLER(ViewMsg_PostMessageEvent, OnPostMessageEvent)
1322     IPC_MESSAGE_HANDLER(DragMsg_TargetDragEnter, OnDragTargetDragEnter)
1323     IPC_MESSAGE_HANDLER(DragMsg_TargetDragOver, OnDragTargetDragOver)
1324     IPC_MESSAGE_HANDLER(DragMsg_TargetDragLeave, OnDragTargetDragLeave)
1325     IPC_MESSAGE_HANDLER(DragMsg_TargetDrop, OnDragTargetDrop)
1326     IPC_MESSAGE_HANDLER(DragMsg_SourceEnded, OnDragSourceEnded)
1327     IPC_MESSAGE_HANDLER(DragMsg_SourceSystemDragEnded,
1328                         OnDragSourceSystemDragEnded)
1329     IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
1330     IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
1331     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
1332     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
1333     IPC_MESSAGE_HANDLER(ViewMsg_EnumerateDirectoryResponse,
1334                         OnEnumerateDirectoryResponse)
1335     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
1336     IPC_MESSAGE_HANDLER(ViewMsg_SuppressDialogsUntilSwapOut,
1337                         OnSuppressDialogsUntilSwapOut)
1338     IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
1339     IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
1340     IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
1341     IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedElement, OnClearFocusedElement)
1342     IPC_MESSAGE_HANDLER(ViewMsg_SetBackgroundOpaque, OnSetBackgroundOpaque)
1343     IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
1344                         OnEnablePreferredSizeChangedMode)
1345     IPC_MESSAGE_HANDLER(ViewMsg_EnableAutoResize, OnEnableAutoResize)
1346     IPC_MESSAGE_HANDLER(ViewMsg_DisableAutoResize, OnDisableAutoResize)
1347     IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
1348                         OnDisableScrollbarsForSmallWindows)
1349     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
1350     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
1351     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
1352     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
1353     IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
1354                         OnGetAllSavableResourceLinksForCurrentPage)
1355     IPC_MESSAGE_HANDLER(
1356         ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
1357         OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
1358     IPC_MESSAGE_HANDLER(ViewMsg_ShowContextMenu, OnShowContextMenu)
1359     // TODO(viettrungluu): Move to a separate message filter.
1360     IPC_MESSAGE_HANDLER(ViewMsg_SetHistoryLengthAndPrune,
1361                         OnSetHistoryLengthAndPrune)
1362     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
1363     IPC_MESSAGE_HANDLER(ViewMsg_ReleaseDisambiguationPopupBitmap,
1364                         OnReleaseDisambiguationPopupBitmap)
1365     IPC_MESSAGE_HANDLER(ViewMsg_WindowSnapshotCompleted,
1366                         OnWindowSnapshotCompleted)
1367     IPC_MESSAGE_HANDLER(ViewMsg_ForceRedraw, OnForceRedraw)
1368     IPC_MESSAGE_HANDLER(ViewMsg_SelectWordAroundCaret, OnSelectWordAroundCaret)
1369 #if defined(OS_ANDROID)
1370     IPC_MESSAGE_HANDLER(InputMsg_ActivateNearestFindResult,
1371                         OnActivateNearestFindResult)
1372     IPC_MESSAGE_HANDLER(ViewMsg_FindMatchRects, OnFindMatchRects)
1373     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTopControlsState,
1374                         OnUpdateTopControlsState)
1375     IPC_MESSAGE_HANDLER(ViewMsg_ExtractSmartClipData, OnExtractSmartClipData)
1376 #elif defined(OS_MACOSX)
1377     IPC_MESSAGE_HANDLER(ViewMsg_GetRenderedText,
1378                         OnGetRenderedText)
1379     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
1380                         OnPluginImeCompositionCompleted)
1381     IPC_MESSAGE_HANDLER(ViewMsg_SetInLiveResize, OnSetInLiveResize)
1382     IPC_MESSAGE_HANDLER(ViewMsg_SetWindowVisibility, OnSetWindowVisibility)
1383     IPC_MESSAGE_HANDLER(ViewMsg_WindowFrameChanged, OnWindowFrameChanged)
1384 #endif
1385     // Adding a new message? Add platform independent ones first, then put the
1386     // platform specific ones at the end.
1387
1388     // Have the super handle all other messages.
1389     IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
1390   IPC_END_MESSAGE_MAP()
1391
1392   return handled;
1393 }
1394
1395 void RenderViewImpl::OnSelectWordAroundCaret() {
1396   if (!webview())
1397     return;
1398
1399   handling_input_event_ = true;
1400   webview()->focusedFrame()->selectWordAroundCaret();
1401   handling_input_event_ = false;
1402 }
1403
1404 bool RenderViewImpl::IsBackForwardToStaleEntry(const PageState& state,
1405                                                int pending_history_list_offset,
1406                                                int32 page_id,
1407                                                bool is_reload) {
1408   // Make sure this isn't a back/forward to an entry we have already cropped
1409   // or replaced from our history, before the browser knew about it.  If so,
1410   // a new navigation has committed in the mean time, and we can ignore this.
1411   bool is_back_forward = !is_reload && state.IsValid();
1412
1413   // Note: if the history_list_length_ is 0 for a back/forward, we must be
1414   // restoring from a previous session.  We'll update our state in OnNavigate.
1415   if (!is_back_forward || history_list_length_ <= 0)
1416     return false;
1417
1418   DCHECK_EQ(static_cast<int>(history_page_ids_.size()), history_list_length_);
1419
1420   // Check for whether the forward history has been cropped due to a recent
1421   // navigation the browser didn't know about.
1422   if (pending_history_list_offset >= history_list_length_)
1423     return true;
1424
1425   // Check for whether this entry has been replaced with a new one.
1426   int expected_page_id =
1427       history_page_ids_[pending_history_list_offset];
1428   if (expected_page_id > 0 && page_id != expected_page_id) {
1429     if (page_id < expected_page_id)
1430       return true;
1431
1432     // Otherwise we've removed an earlier entry and should have shifted all
1433     // entries left.  For now, it's ok to lazily update the list.
1434     // TODO(creis): Notify all live renderers when we remove entries from
1435     // the front of the list, so that we don't hit this case.
1436     history_page_ids_[pending_history_list_offset] = page_id;
1437   }
1438
1439   return false;
1440 }
1441
1442 void RenderViewImpl::OnCopyImageAt(int x, int y) {
1443   webview()->copyImageAt(WebPoint(x, y));
1444 }
1445
1446 void RenderViewImpl::OnSaveImageAt(int x, int y) {
1447   webview()->saveImageAt(WebPoint(x, y));
1448 }
1449
1450 void RenderViewImpl::OnUpdateTargetURLAck() {
1451   // Check if there is a targeturl waiting to be sent.
1452   if (target_url_status_ == TARGET_PENDING)
1453     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, pending_target_url_));
1454
1455   target_url_status_ = TARGET_NONE;
1456 }
1457
1458 void RenderViewImpl::OnExecuteEditCommand(const std::string& name,
1459     const std::string& value) {
1460   if (!webview() || !webview()->focusedFrame())
1461     return;
1462
1463   webview()->focusedFrame()->executeCommand(
1464       WebString::fromUTF8(name), WebString::fromUTF8(value));
1465 }
1466
1467 void RenderViewImpl::OnMoveCaret(const gfx::Point& point) {
1468   if (!webview())
1469     return;
1470
1471   Send(new InputHostMsg_MoveCaret_ACK(routing_id_));
1472
1473   webview()->focusedFrame()->moveCaretSelection(point);
1474 }
1475
1476 void RenderViewImpl::OnScrollFocusedEditableNodeIntoRect(
1477     const gfx::Rect& rect) {
1478   if (has_scrolled_focused_editable_node_into_rect_ &&
1479       rect == rect_for_scrolled_focused_editable_node_) {
1480     return;
1481   }
1482
1483   blink::WebElement element = GetFocusedElement();
1484   if (!element.isNull() && IsEditableNode(element)) {
1485     rect_for_scrolled_focused_editable_node_ = rect;
1486     has_scrolled_focused_editable_node_into_rect_ = true;
1487     webview()->scrollFocusedNodeIntoRect(rect);
1488   }
1489 }
1490
1491 void RenderViewImpl::OnSetEditCommandsForNextKeyEvent(
1492     const EditCommands& edit_commands) {
1493   edit_commands_ = edit_commands;
1494 }
1495
1496 void RenderViewImpl::OnSetHistoryLengthAndPrune(int history_length,
1497                                                 int32 minimum_page_id) {
1498   DCHECK_GE(history_length, 0);
1499   DCHECK(history_list_offset_ == history_list_length_ - 1);
1500   DCHECK_GE(minimum_page_id, -1);
1501
1502   // Generate the new list.
1503   std::vector<int32> new_history_page_ids(history_length, -1);
1504   for (size_t i = 0; i < history_page_ids_.size(); ++i) {
1505     if (minimum_page_id >= 0 && history_page_ids_[i] < minimum_page_id)
1506       continue;
1507     new_history_page_ids.push_back(history_page_ids_[i]);
1508   }
1509   new_history_page_ids.swap(history_page_ids_);
1510
1511   // Update indexes.
1512   history_list_length_ = history_page_ids_.size();
1513   history_list_offset_ = history_list_length_ - 1;
1514 }
1515
1516
1517 void RenderViewImpl::OnSetInitialFocus(bool reverse) {
1518   if (!webview())
1519     return;
1520   webview()->setInitialFocus(reverse);
1521 }
1522
1523 #if defined(OS_MACOSX)
1524 void RenderViewImpl::OnSetInLiveResize(bool in_live_resize) {
1525   if (!webview())
1526     return;
1527   if (in_live_resize)
1528     webview()->willStartLiveResize();
1529   else
1530     webview()->willEndLiveResize();
1531 }
1532 #endif
1533
1534 ///////////////////////////////////////////////////////////////////////////////
1535
1536 // Sends the current history state to the browser so it will be saved before we
1537 // navigate to a new page.
1538 void RenderViewImpl::UpdateSessionHistory(WebFrame* frame) {
1539   // If we have a valid page ID at this point, then it corresponds to the page
1540   // we are navigating away from.  Otherwise, this is the first navigation, so
1541   // there is no past session history to record.
1542   if (page_id_ == -1)
1543     return;
1544   SendUpdateState(history_controller_->GetCurrentEntry());
1545 }
1546
1547 void RenderViewImpl::SendUpdateState(HistoryEntry* entry) {
1548   if (!entry)
1549     return;
1550
1551   // Don't send state updates for kSwappedOutURL.
1552   if (entry->root().urlString() == WebString::fromUTF8(kSwappedOutURL))
1553     return;
1554
1555   Send(new ViewHostMsg_UpdateState(
1556       routing_id_, page_id_, HistoryEntryToPageState(entry)));
1557 }
1558
1559 bool RenderViewImpl::SendAndRunNestedMessageLoop(IPC::SyncMessage* message) {
1560   // Before WebKit asks us to show an alert (etc.), it takes care of doing the
1561   // equivalent of WebView::willEnterModalLoop.  In the case of showModalDialog
1562   // it is particularly important that we do not call willEnterModalLoop as
1563   // that would defer resource loads for the dialog itself.
1564   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
1565     RenderThreadImpl::current()->DoNotNotifyWebKitOfModalLoop();
1566
1567   message->EnableMessagePumping();  // Runs a nested message loop.
1568   return Send(message);
1569 }
1570
1571 void RenderViewImpl::GetWindowSnapshot(const WindowSnapshotCallback& callback) {
1572   int id = next_snapshot_id_++;
1573   pending_snapshots_.insert(std::make_pair(id, callback));
1574   ui::LatencyInfo latency_info;
1575   latency_info.AddLatencyNumber(ui::WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1576                                 0,
1577                                 id);
1578   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1579   if (RenderWidgetCompositor* rwc = compositor()) {
1580     latency_info_swap_promise_monitor =
1581         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1582   }
1583   ScheduleCompositeWithForcedRedraw();
1584 }
1585
1586 void RenderViewImpl::OnForceRedraw(int id) {
1587   ui::LatencyInfo latency_info;
1588   if (id) {
1589     latency_info.AddLatencyNumber(ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1590                                   0,
1591                                   id);
1592   }
1593   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1594   if (RenderWidgetCompositor* rwc = compositor()) {
1595     latency_info_swap_promise_monitor =
1596         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1597   }
1598   ScheduleCompositeWithForcedRedraw();
1599 }
1600
1601 void RenderViewImpl::OnWindowSnapshotCompleted(const int snapshot_id,
1602     const gfx::Size& size, const std::vector<unsigned char>& png) {
1603
1604   // Any pending snapshots with a lower ID than the one received are considered
1605   // to be implicitly complete, and returned the same snapshot data.
1606   PendingSnapshotMap::iterator it = pending_snapshots_.begin();
1607   while(it != pending_snapshots_.end()) {
1608       if (it->first <= snapshot_id) {
1609         it->second.Run(size, png);
1610         pending_snapshots_.erase(it++);
1611       } else {
1612         ++it;
1613       }
1614   }
1615 }
1616
1617 // blink::WebViewClient ------------------------------------------------------
1618
1619 WebView* RenderViewImpl::createView(WebLocalFrame* creator,
1620                                     const WebURLRequest& request,
1621                                     const WebWindowFeatures& features,
1622                                     const WebString& frame_name,
1623                                     WebNavigationPolicy policy,
1624                                     bool suppress_opener) {
1625   ViewHostMsg_CreateWindow_Params params;
1626   params.opener_id = routing_id_;
1627   params.user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
1628   if (GetContentClient()->renderer()->AllowPopup())
1629     params.user_gesture = true;
1630   params.window_container_type = WindowFeaturesToContainerType(features);
1631   params.session_storage_namespace_id = session_storage_namespace_id_;
1632   if (frame_name != "_blank")
1633     params.frame_name = frame_name;
1634   params.opener_render_frame_id =
1635       RenderFrameImpl::FromWebFrame(creator)->GetRoutingID();
1636   params.opener_url = creator->document().url();
1637   params.opener_top_level_frame_url = creator->top()->document().url();
1638   GURL security_url(creator->document().securityOrigin().toString());
1639   if (!security_url.is_valid())
1640     security_url = GURL();
1641   params.opener_security_origin = security_url;
1642   params.opener_suppressed = suppress_opener;
1643   params.disposition = NavigationPolicyToDisposition(policy);
1644   if (!request.isNull()) {
1645     params.target_url = request.url();
1646     params.referrer = GetReferrerFromRequest(creator, request);
1647   }
1648   params.features = features;
1649
1650   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
1651     params.additional_features.push_back(features.additionalFeatures[i]);
1652
1653   int32 routing_id = MSG_ROUTING_NONE;
1654   int32 main_frame_routing_id = MSG_ROUTING_NONE;
1655   int32 surface_id = 0;
1656   int64 cloned_session_storage_namespace_id = 0;
1657
1658   RenderThread::Get()->Send(
1659       new ViewHostMsg_CreateWindow(params,
1660                                    &routing_id,
1661                                    &main_frame_routing_id,
1662                                    &surface_id,
1663                                    &cloned_session_storage_namespace_id));
1664   if (routing_id == MSG_ROUTING_NONE)
1665     return NULL;
1666
1667   WebUserGestureIndicator::consumeUserGesture();
1668
1669   // While this view may be a background extension page, it can spawn a visible
1670   // render view. So we just assume that the new one is not another background
1671   // page instead of passing on our own value.
1672   // TODO(vangelis): Can we tell if the new view will be a background page?
1673   bool never_visible = false;
1674
1675   // The initial hidden state for the RenderViewImpl here has to match what the
1676   // browser will eventually decide for the given disposition. Since we have to
1677   // return from this call synchronously, we just have to make our best guess
1678   // and rely on the browser sending a WasHidden / WasShown message if it
1679   // disagrees.
1680   RenderViewImpl* view = RenderViewImpl::Create(
1681       routing_id_,
1682       true,  // window_was_created_with_opener
1683       renderer_preferences_,
1684       webkit_preferences_,
1685       routing_id,
1686       main_frame_routing_id,
1687       surface_id,
1688       cloned_session_storage_namespace_id,
1689       base::string16(),  // WebCore will take care of setting the correct name.
1690       true,              // is_renderer_created
1691       false,             // swapped_out
1692       MSG_ROUTING_NONE,  // proxy_routing_id
1693       params.disposition == NEW_BACKGROUND_TAB,  // hidden
1694       never_visible,
1695       1,  // next_page_id
1696       screen_info_);
1697   view->opened_by_user_gesture_ = params.user_gesture;
1698
1699   // Record whether the creator frame is trying to suppress the opener field.
1700   view->opener_suppressed_ = params.opener_suppressed;
1701
1702   return view->webview();
1703 }
1704
1705 WebWidget* RenderViewImpl::createPopupMenu(blink::WebPopupType popup_type) {
1706   RenderWidget* widget =
1707       RenderWidget::Create(routing_id_, popup_type, screen_info_);
1708   if (!widget)
1709     return NULL;
1710   if (screen_metrics_emulator_) {
1711     widget->SetPopupOriginAdjustmentsForEmulation(
1712         screen_metrics_emulator_.get());
1713   }
1714   return widget->webwidget();
1715 }
1716
1717 WebStorageNamespace* RenderViewImpl::createSessionStorageNamespace() {
1718   CHECK(session_storage_namespace_id_ != kInvalidSessionStorageNamespaceId);
1719   return new WebStorageNamespaceImpl(session_storage_namespace_id_);
1720 }
1721
1722 void RenderViewImpl::printPage(WebLocalFrame* frame) {
1723   FOR_EACH_OBSERVER(RenderViewObserver, observers_,
1724                     PrintPage(frame, handling_input_event_));
1725 }
1726
1727 void RenderViewImpl::saveImageFromDataURL(const blink::WebString& data_url) {
1728   // Note: We should basically send GURL but we use size-limited string instead
1729   // in order to send a larger data url to save a image for <canvas> or <img>.
1730   if (data_url.length() < kMaxLengthOfDataURLString)
1731     Send(new ViewHostMsg_SaveImageFromDataURL(routing_id_, data_url.utf8()));
1732 }
1733
1734 bool RenderViewImpl::enumerateChosenDirectory(
1735     const WebString& path,
1736     WebFileChooserCompletion* chooser_completion) {
1737   int id = enumeration_completion_id_++;
1738   enumeration_completions_[id] = chooser_completion;
1739   return Send(new ViewHostMsg_EnumerateDirectory(
1740       routing_id_,
1741       id,
1742       base::FilePath::FromUTF16Unsafe(path)));
1743 }
1744
1745 void RenderViewImpl::FrameDidStartLoading(WebFrame* frame) {
1746   DCHECK_GE(frames_in_progress_, 0);
1747   if (frames_in_progress_ == 0)
1748     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStartLoading());
1749   frames_in_progress_++;
1750 }
1751
1752 void RenderViewImpl::FrameDidStopLoading(WebFrame* frame) {
1753   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
1754   // calls DidStopLoading() without a matching DidStartLoading().
1755   if (frames_in_progress_ == 0)
1756     return;
1757   frames_in_progress_--;
1758   if (frames_in_progress_ == 0) {
1759     DidStopLoadingIcons();
1760     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
1761   }
1762 }
1763
1764 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
1765   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
1766 }
1767
1768 bool RenderViewImpl::handleCurrentKeyboardEvent() {
1769   if (edit_commands_.empty())
1770     return false;
1771
1772   WebFrame* frame = webview()->focusedFrame();
1773   if (!frame)
1774     return false;
1775
1776   EditCommands::iterator it = edit_commands_.begin();
1777   EditCommands::iterator end = edit_commands_.end();
1778
1779   bool did_execute_command = false;
1780   for (; it != end; ++it) {
1781     // In gtk and cocoa, it's possible to bind multiple edit commands to one
1782     // key (but it's the exception). Once one edit command is not executed, it
1783     // seems safest to not execute the rest.
1784     if (!frame->executeCommand(WebString::fromUTF8(it->name),
1785                                WebString::fromUTF8(it->value),
1786                                GetFocusedElement()))
1787       break;
1788     did_execute_command = true;
1789   }
1790
1791   return did_execute_command;
1792 }
1793
1794 bool RenderViewImpl::runFileChooser(
1795     const blink::WebFileChooserParams& params,
1796     WebFileChooserCompletion* chooser_completion) {
1797   // Do not open the file dialog in a hidden RenderView.
1798   if (is_hidden())
1799     return false;
1800   FileChooserParams ipc_params;
1801   if (params.directory)
1802     ipc_params.mode = FileChooserParams::UploadFolder;
1803   else if (params.multiSelect)
1804     ipc_params.mode = FileChooserParams::OpenMultiple;
1805   else if (params.saveAs)
1806     ipc_params.mode = FileChooserParams::Save;
1807   else
1808     ipc_params.mode = FileChooserParams::Open;
1809   ipc_params.title = params.title;
1810   ipc_params.default_file_name =
1811       base::FilePath::FromUTF16Unsafe(params.initialValue);
1812   ipc_params.accept_types.reserve(params.acceptTypes.size());
1813   for (size_t i = 0; i < params.acceptTypes.size(); ++i)
1814     ipc_params.accept_types.push_back(params.acceptTypes[i]);
1815   ipc_params.need_local_path = params.needLocalPath;
1816 #if defined(OS_ANDROID)
1817   ipc_params.capture = params.useMediaCapture;
1818 #endif
1819
1820   return ScheduleFileChooser(ipc_params, chooser_completion);
1821 }
1822
1823 void RenderViewImpl::SetValidationMessageDirection(
1824     base::string16* wrapped_main_text,
1825     blink::WebTextDirection main_text_hint,
1826     base::string16* wrapped_sub_text,
1827     blink::WebTextDirection sub_text_hint) {
1828   if (main_text_hint == blink::WebTextDirectionLeftToRight) {
1829     *wrapped_main_text =
1830         base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_main_text);
1831   } else if (main_text_hint == blink::WebTextDirectionRightToLeft &&
1832              !base::i18n::IsRTL()) {
1833     base::i18n::WrapStringWithRTLFormatting(wrapped_main_text);
1834   }
1835
1836   if (!wrapped_sub_text->empty()) {
1837     if (sub_text_hint == blink::WebTextDirectionLeftToRight) {
1838       *wrapped_sub_text =
1839           base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_sub_text);
1840     } else if (sub_text_hint == blink::WebTextDirectionRightToLeft) {
1841       base::i18n::WrapStringWithRTLFormatting(wrapped_sub_text);
1842     }
1843   }
1844 }
1845
1846 void RenderViewImpl::showValidationMessage(
1847     const blink::WebRect& anchor_in_root_view,
1848     const blink::WebString& main_text,
1849     blink::WebTextDirection main_text_hint,
1850     const blink::WebString& sub_text,
1851     blink::WebTextDirection sub_text_hint) {
1852   base::string16 wrapped_main_text = main_text;
1853   base::string16 wrapped_sub_text = sub_text;
1854
1855   SetValidationMessageDirection(
1856       &wrapped_main_text, main_text_hint, &wrapped_sub_text, sub_text_hint);
1857
1858   Send(new ViewHostMsg_ShowValidationMessage(
1859       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view),
1860       wrapped_main_text, wrapped_sub_text));
1861 }
1862
1863 void RenderViewImpl::hideValidationMessage() {
1864   Send(new ViewHostMsg_HideValidationMessage(routing_id()));
1865 }
1866
1867 void RenderViewImpl::moveValidationMessage(
1868     const blink::WebRect& anchor_in_root_view) {
1869   Send(new ViewHostMsg_MoveValidationMessage(
1870       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view)));
1871 }
1872
1873 void RenderViewImpl::setStatusText(const WebString& text) {
1874 }
1875
1876 void RenderViewImpl::UpdateTargetURL(const GURL& url,
1877                                      const GURL& fallback_url) {
1878   GURL latest_url = url.is_empty() ? fallback_url : url;
1879   if (latest_url == target_url_)
1880     return;
1881
1882   // Tell the browser to display a destination link.
1883   if (target_url_status_ == TARGET_INFLIGHT ||
1884       target_url_status_ == TARGET_PENDING) {
1885     // If we have a request in-flight, save the URL to be sent when we
1886     // receive an ACK to the in-flight request. We can happily overwrite
1887     // any existing pending sends.
1888     pending_target_url_ = latest_url;
1889     target_url_status_ = TARGET_PENDING;
1890   } else {
1891     // URLs larger than |MaxURLChars()| cannot be sent through IPC -
1892     // see |ParamTraits<GURL>|.
1893     if (latest_url.possibly_invalid_spec().size() > GetMaxURLChars())
1894       latest_url = GURL();
1895     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, latest_url));
1896     target_url_ = latest_url;
1897     target_url_status_ = TARGET_INFLIGHT;
1898   }
1899 }
1900
1901 gfx::RectF RenderViewImpl::ClientRectToPhysicalWindowRect(
1902     const gfx::RectF& rect) const {
1903   gfx::RectF window_rect = rect;
1904   window_rect.Scale(device_scale_factor_ * webview()->pageScaleFactor());
1905   return window_rect;
1906 }
1907
1908 void RenderViewImpl::StartNavStateSyncTimerIfNecessary() {
1909   // No need to update state if no page has committed yet.
1910   if (page_id_ == -1)
1911     return;
1912
1913   int delay;
1914   if (send_content_state_immediately_)
1915     delay = 0;
1916   else if (is_hidden())
1917     delay = kDelaySecondsForContentStateSyncHidden;
1918   else
1919     delay = kDelaySecondsForContentStateSync;
1920
1921   if (nav_state_sync_timer_.IsRunning()) {
1922     // The timer is already running. If the delay of the timer maches the amount
1923     // we want to delay by, then return. Otherwise stop the timer so that it
1924     // gets started with the right delay.
1925     if (nav_state_sync_timer_.GetCurrentDelay().InSeconds() == delay)
1926       return;
1927     nav_state_sync_timer_.Stop();
1928   }
1929
1930   nav_state_sync_timer_.Start(FROM_HERE, TimeDelta::FromSeconds(delay), this,
1931                               &RenderViewImpl::SyncNavigationState);
1932 }
1933
1934 void RenderViewImpl::setMouseOverURL(const WebURL& url) {
1935   mouse_over_url_ = GURL(url);
1936   UpdateTargetURL(mouse_over_url_, focus_url_);
1937 }
1938
1939 void RenderViewImpl::setKeyboardFocusURL(const WebURL& url) {
1940   focus_url_ = GURL(url);
1941   UpdateTargetURL(focus_url_, mouse_over_url_);
1942 }
1943
1944 void RenderViewImpl::startDragging(WebLocalFrame* frame,
1945                                    const WebDragData& data,
1946                                    WebDragOperationsMask mask,
1947                                    const WebImage& image,
1948                                    const WebPoint& webImageOffset) {
1949   DropData drop_data(DropDataBuilder::Build(data));
1950   drop_data.referrer_policy = frame->document().referrerPolicy();
1951   gfx::Vector2d imageOffset(webImageOffset.x, webImageOffset.y);
1952   Send(new DragHostMsg_StartDragging(routing_id_,
1953                                      drop_data,
1954                                      mask,
1955                                      image.getSkBitmap(),
1956                                      imageOffset,
1957                                      possible_drag_event_info_));
1958 }
1959
1960 bool RenderViewImpl::acceptsLoadDrops() {
1961   return renderer_preferences_.can_accept_load_drops;
1962 }
1963
1964 void RenderViewImpl::focusNext() {
1965   Send(new ViewHostMsg_TakeFocus(routing_id_, false));
1966 }
1967
1968 void RenderViewImpl::focusPrevious() {
1969   Send(new ViewHostMsg_TakeFocus(routing_id_, true));
1970 }
1971
1972 void RenderViewImpl::focusedNodeChanged(const WebNode& node) {
1973   has_scrolled_focused_editable_node_into_rect_ = false;
1974
1975   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
1976
1977   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(node));
1978
1979   // TODO(dmazzoni): this should be part of RenderFrameObserver.
1980   GetMainRenderFrame()->FocusedNodeChanged(node);
1981 }
1982
1983 void RenderViewImpl::didUpdateLayout() {
1984   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidUpdateLayout());
1985
1986   // We don't always want to set up a timer, only if we've been put in that
1987   // mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
1988   // message.
1989   if (!send_preferred_size_changes_ || !webview())
1990     return;
1991
1992   if (check_preferred_size_timer_.IsRunning())
1993     return;
1994   check_preferred_size_timer_.Start(FROM_HERE,
1995                                     TimeDelta::FromMilliseconds(0), this,
1996                                     &RenderViewImpl::CheckPreferredSize);
1997 }
1998
1999 void RenderViewImpl::navigateBackForwardSoon(int offset) {
2000   Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
2001 }
2002
2003 int RenderViewImpl::historyBackListCount() {
2004   return history_list_offset_ < 0 ? 0 : history_list_offset_;
2005 }
2006
2007 int RenderViewImpl::historyForwardListCount() {
2008   return history_list_length_ - historyBackListCount() - 1;
2009 }
2010
2011 // blink::WebWidgetClient ----------------------------------------------------
2012
2013 void RenderViewImpl::didFocus() {
2014   // TODO(jcivelli): when https://bugs.webkit.org/show_bug.cgi?id=33389 is fixed
2015   //                 we won't have to test for user gesture anymore and we can
2016   //                 move that code back to render_widget.cc
2017   if (WebUserGestureIndicator::isProcessingUserGesture() &&
2018       !RenderThreadImpl::current()->layout_test_mode()) {
2019     Send(new ViewHostMsg_Focus(routing_id_));
2020   }
2021 }
2022
2023 void RenderViewImpl::didBlur() {
2024   // TODO(jcivelli): see TODO above in didFocus().
2025   if (WebUserGestureIndicator::isProcessingUserGesture() &&
2026       !RenderThreadImpl::current()->layout_test_mode()) {
2027     Send(new ViewHostMsg_Blur(routing_id_));
2028   }
2029 }
2030
2031 // We are supposed to get a single call to Show for a newly created RenderView
2032 // that was created via RenderViewImpl::CreateWebView.  So, we wait until this
2033 // point to dispatch the ShowView message.
2034 //
2035 // This method provides us with the information about how to display the newly
2036 // created RenderView (i.e., as a blocked popup or as a new tab).
2037 //
2038 void RenderViewImpl::show(WebNavigationPolicy policy) {
2039   if (did_show_) {
2040     // When supports_multiple_windows is disabled, popups are reusing
2041     // the same view. In some scenarios, this makes WebKit to call show() twice.
2042     if (webkit_preferences_.supports_multiple_windows)
2043       NOTREACHED() << "received extraneous Show call";
2044     return;
2045   }
2046   did_show_ = true;
2047
2048   DCHECK(opener_id_ != MSG_ROUTING_NONE);
2049
2050   // NOTE: initial_pos_ may still have its default values at this point, but
2051   // that's okay.  It'll be ignored if disposition is not NEW_POPUP, or the
2052   // browser process will impose a default position otherwise.
2053   Send(new ViewHostMsg_ShowView(opener_id_, routing_id_,
2054       NavigationPolicyToDisposition(policy), initial_pos_,
2055       opened_by_user_gesture_));
2056   SetPendingWindowRect(initial_pos_);
2057 }
2058
2059 void RenderViewImpl::runModal() {
2060   DCHECK(did_show_) << "should already have shown the view";
2061
2062   // Don't allow further dialogs if we are waiting to swap out, since the
2063   // PageGroupLoadDeferrer in our stack prevents it.
2064   if (suppress_dialogs_until_swap_out_)
2065     return;
2066
2067   // We must keep WebKit's shared timer running in this case in order to allow
2068   // showModalDialog to function properly.
2069   //
2070   // TODO(darin): WebKit should really be smarter about suppressing events and
2071   // timers so that we do not need to manage the shared timer in such a heavy
2072   // handed manner.
2073   //
2074   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
2075     RenderThreadImpl::current()->DoNotSuspendWebKitSharedTimer();
2076
2077   SendAndRunNestedMessageLoop(new ViewHostMsg_RunModal(
2078       routing_id_, opener_id_));
2079 }
2080
2081 bool RenderViewImpl::enterFullScreen() {
2082   Send(new ViewHostMsg_ToggleFullscreen(routing_id_, true));
2083   return true;
2084 }
2085
2086 void RenderViewImpl::exitFullScreen() {
2087   Send(new ViewHostMsg_ToggleFullscreen(routing_id_, false));
2088 }
2089
2090 bool RenderViewImpl::requestPointerLock() {
2091   return mouse_lock_dispatcher_->LockMouse(webwidget_mouse_lock_target_.get());
2092 }
2093
2094 void RenderViewImpl::requestPointerUnlock() {
2095   mouse_lock_dispatcher_->UnlockMouse(webwidget_mouse_lock_target_.get());
2096 }
2097
2098 bool RenderViewImpl::isPointerLocked() {
2099   return mouse_lock_dispatcher_->IsMouseLockedTo(
2100       webwidget_mouse_lock_target_.get());
2101 }
2102
2103 void RenderViewImpl::didHandleGestureEvent(
2104     const WebGestureEvent& event,
2105     bool event_cancelled) {
2106   RenderWidget::didHandleGestureEvent(event, event_cancelled);
2107
2108   if (!event_cancelled) {
2109     FOR_EACH_OBSERVER(
2110         RenderViewObserver, observers_, DidHandleGestureEvent(event));
2111   }
2112
2113   // TODO(ananta): Piggyback off existing IPCs to communicate this information,
2114   // crbug/420130.
2115 #if defined(OS_WIN)
2116   if (event.type != blink::WebGestureEvent::GestureTap)
2117     return;
2118
2119   // TODO(estade): hit test the event against focused node to make sure
2120   // the tap actually hit the focused node.
2121   blink::WebTextInputType text_input_type =
2122       GetWebView()->textInputInfo().type;
2123
2124   Send(new ViewHostMsg_FocusedNodeTouched(
2125       routing_id(), text_input_type != blink::WebTextInputTypeNone));
2126 #endif
2127 }
2128
2129 void RenderViewImpl::initializeLayerTreeView() {
2130   RenderWidget::initializeLayerTreeView();
2131   RenderWidgetCompositor* rwc = compositor();
2132   if (!rwc)
2133     return;
2134   if (webview() && webview()->devToolsAgent())
2135     webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
2136
2137   bool use_threaded_event_handling = true;
2138 #if defined(OS_MACOSX) && !defined(OS_IOS)
2139   // Development flag because many events are still unhandled on Mac.
2140   // http://crbug.com/138003
2141   use_threaded_event_handling = CommandLine::ForCurrentProcess()->HasSwitch(
2142       switches::kEnableThreadedEventHandlingMac);
2143 #endif
2144   if (use_threaded_event_handling) {
2145     RenderThreadImpl* render_thread = RenderThreadImpl::current();
2146     // render_thread may be NULL in tests.
2147     InputHandlerManager* input_handler_manager =
2148         render_thread ? render_thread->input_handler_manager() : NULL;
2149     if (input_handler_manager) {
2150       input_handler_manager->AddInputHandler(
2151           routing_id_, rwc->GetInputHandler(), AsWeakPtr());
2152     }
2153   }
2154 }
2155
2156 // blink::WebFrameClient -----------------------------------------------------
2157
2158 void RenderViewImpl::Repaint(const gfx::Size& size) {
2159   OnRepaint(size);
2160 }
2161
2162 void RenderViewImpl::SetEditCommandForNextKeyEvent(const std::string& name,
2163                                                    const std::string& value) {
2164   EditCommands edit_commands;
2165   edit_commands.push_back(EditCommand(name, value));
2166   OnSetEditCommandsForNextKeyEvent(edit_commands);
2167 }
2168
2169 void RenderViewImpl::ClearEditCommands() {
2170   edit_commands_.clear();
2171 }
2172
2173 SSLStatus RenderViewImpl::GetSSLStatusOfFrame(blink::WebFrame* frame) const {
2174   std::string security_info;
2175   if (frame && frame->dataSource())
2176     security_info = frame->dataSource()->response().securityInfo();
2177
2178   SSLStatus ssl_status;
2179   DeserializeSecurityInfo(security_info,
2180                           &ssl_status.cert_id,
2181                           &ssl_status.cert_status,
2182                           &ssl_status.security_bits,
2183                           &ssl_status.connection_status,
2184                           &ssl_status.signed_certificate_timestamp_ids);
2185   return ssl_status;
2186 }
2187
2188 const std::string& RenderViewImpl::GetAcceptLanguages() const {
2189   return renderer_preferences_.accept_languages;
2190 }
2191
2192 void RenderViewImpl::didCreateDataSource(WebLocalFrame* frame,
2193                                          WebDataSource* ds) {
2194   bool content_initiated = !pending_navigation_params_.get();
2195
2196   // Make sure any previous redirect URLs end up in our new data source.
2197   if (pending_navigation_params_.get()) {
2198     for (std::vector<GURL>::const_iterator i =
2199              pending_navigation_params_->redirects.begin();
2200          i != pending_navigation_params_->redirects.end(); ++i) {
2201       ds->appendRedirect(*i);
2202     }
2203   }
2204
2205   DocumentState* document_state = DocumentState::FromDataSource(ds);
2206   if (!document_state) {
2207     document_state = new DocumentState;
2208     ds->setExtraData(document_state);
2209     if (!content_initiated)
2210       PopulateDocumentStateFromPending(document_state);
2211   }
2212
2213   // Carry over the user agent override flag, if it exists.
2214   if (content_initiated && webview() && webview()->mainFrame() &&
2215       webview()->mainFrame()->isWebLocalFrame() &&
2216       webview()->mainFrame()->dataSource()) {
2217     DocumentState* old_document_state =
2218         DocumentState::FromDataSource(webview()->mainFrame()->dataSource());
2219     if (old_document_state) {
2220       InternalDocumentStateData* internal_data =
2221           InternalDocumentStateData::FromDocumentState(document_state);
2222       InternalDocumentStateData* old_internal_data =
2223           InternalDocumentStateData::FromDocumentState(old_document_state);
2224       internal_data->set_is_overriding_user_agent(
2225           old_internal_data->is_overriding_user_agent());
2226     }
2227   }
2228
2229   // The rest of RenderView assumes that a WebDataSource will always have a
2230   // non-null NavigationState.
2231   if (content_initiated) {
2232     document_state->set_navigation_state(
2233         NavigationState::CreateContentInitiated());
2234   } else {
2235     document_state->set_navigation_state(CreateNavigationStateFromPending());
2236     pending_navigation_params_.reset();
2237   }
2238
2239   // DocumentState::referred_by_prefetcher_ is true if we are
2240   // navigating from a page that used prefetching using a link on that
2241   // page.  We are early enough in the request process here that we
2242   // can still see the DocumentState of the previous page and set
2243   // this value appropriately.
2244   // TODO(gavinp): catch the important case of navigation in a new
2245   // renderer process.
2246   if (webview()) {
2247     if (WebFrame* old_frame = webview()->mainFrame()) {
2248       const WebURLRequest& original_request = ds->originalRequest();
2249       const GURL referrer(
2250           original_request.httpHeaderField(WebString::fromUTF8("Referer")));
2251       if (!referrer.is_empty() && old_frame->isWebLocalFrame() &&
2252           DocumentState::FromDataSource(old_frame->dataSource())
2253               ->was_prefetcher()) {
2254         for (; old_frame; old_frame = old_frame->traverseNext(false)) {
2255           WebDataSource* old_frame_ds = old_frame->dataSource();
2256           if (old_frame_ds && referrer == GURL(old_frame_ds->request().url())) {
2257             document_state->set_was_referred_by_prefetcher(true);
2258             break;
2259           }
2260         }
2261       }
2262     }
2263   }
2264
2265   if (content_initiated) {
2266     const WebURLRequest& request = ds->request();
2267     switch (request.cachePolicy()) {
2268       case WebURLRequest::UseProtocolCachePolicy:  // normal load.
2269         document_state->set_load_type(DocumentState::LINK_LOAD_NORMAL);
2270         break;
2271       case WebURLRequest::ReloadIgnoringCacheData:  // reload.
2272       case WebURLRequest::ReloadBypassingCache:  // end-to-end reload.
2273         document_state->set_load_type(DocumentState::LINK_LOAD_RELOAD);
2274         break;
2275       case WebURLRequest::ReturnCacheDataElseLoad:  // allow stale data.
2276         document_state->set_load_type(
2277             DocumentState::LINK_LOAD_CACHE_STALE_OK);
2278         break;
2279       case WebURLRequest::ReturnCacheDataDontLoad:  // Don't re-post.
2280         document_state->set_load_type(DocumentState::LINK_LOAD_CACHE_ONLY);
2281         break;
2282       default:
2283         NOTREACHED();
2284     }
2285   }
2286
2287   FOR_EACH_OBSERVER(
2288       RenderViewObserver, observers_, DidCreateDataSource(frame, ds));
2289 }
2290
2291 void RenderViewImpl::PopulateDocumentStateFromPending(
2292     DocumentState* document_state) {
2293   const FrameMsg_Navigate_Params& params = *pending_navigation_params_.get();
2294   document_state->set_request_time(params.request_time);
2295
2296   InternalDocumentStateData* internal_data =
2297       InternalDocumentStateData::FromDocumentState(document_state);
2298
2299   if (!params.common_params.url.SchemeIs(url::kJavaScriptScheme) &&
2300       params.common_params.navigation_type == FrameMsg_Navigate_Type::RESTORE) {
2301     // We're doing a load of a page that was restored from the last session. By
2302     // default this prefers the cache over loading (LOAD_PREFERRING_CACHE) which
2303     // can result in stale data for pages that are set to expire. We explicitly
2304     // override that by setting the policy here so that as necessary we load
2305     // from the network.
2306     //
2307     // TODO(davidben): Remove this in favor of passing a cache policy to the
2308     // loadHistoryItem call in OnNavigate. That requires not overloading
2309     // UseProtocolCachePolicy to mean both "normal load" and "determine cache
2310     // policy based on load type, etc".
2311     internal_data->set_cache_policy_override(
2312         WebURLRequest::UseProtocolCachePolicy);
2313   }
2314
2315   if (IsReload(params.common_params.navigation_type))
2316     document_state->set_load_type(DocumentState::RELOAD);
2317   else if (params.commit_params.page_state.IsValid())
2318     document_state->set_load_type(DocumentState::HISTORY_LOAD);
2319   else
2320     document_state->set_load_type(DocumentState::NORMAL_LOAD);
2321
2322   internal_data->set_is_overriding_user_agent(
2323       params.commit_params.is_overriding_user_agent);
2324   internal_data->set_must_reset_scroll_and_scale_state(
2325       params.common_params.navigation_type ==
2326       FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL);
2327   document_state->set_can_load_local_resources(params.can_load_local_resources);
2328 }
2329
2330 NavigationState* RenderViewImpl::CreateNavigationStateFromPending() {
2331   const FrameMsg_Navigate_Params& params = *pending_navigation_params_.get();
2332   NavigationState* navigation_state = NULL;
2333
2334   // A navigation resulting from loading a javascript URL should not be treated
2335   // as a browser initiated event.  Instead, we want it to look as if the page
2336   // initiated any load resulting from JS execution.
2337   if (!params.common_params.url.SchemeIs(url::kJavaScriptScheme)) {
2338     navigation_state = NavigationState::CreateBrowserInitiated(
2339         params.page_id,
2340         params.pending_history_list_offset,
2341         params.should_clear_history_list,
2342         params.common_params.transition);
2343     navigation_state->set_should_replace_current_entry(
2344         params.should_replace_current_entry);
2345     navigation_state->set_transferred_request_child_id(
2346         params.transferred_request_child_id);
2347     navigation_state->set_transferred_request_request_id(
2348         params.transferred_request_request_id);
2349     navigation_state->set_allow_download(params.common_params.allow_download);
2350     navigation_state->set_extra_headers(params.request_params.extra_headers);
2351   } else {
2352     navigation_state = NavigationState::CreateContentInitiated();
2353   }
2354   return navigation_state;
2355 }
2356
2357 void RenderViewImpl::ProcessViewLayoutFlags(const CommandLine& command_line) {
2358   bool enable_viewport =
2359       command_line.HasSwitch(switches::kEnableViewport) ||
2360       command_line.HasSwitch(switches::kEnableViewportMeta);
2361
2362   // If viewport tag is enabled, then the WebKit side will take care
2363   // of setting the fixed layout size and page scale limits.
2364   if (enable_viewport)
2365     return;
2366
2367   // When navigating to a new page, reset the page scale factor to be 1.0.
2368   webview()->setInitialPageScaleOverride(1.f);
2369
2370   float maxPageScaleFactor =
2371       command_line.HasSwitch(switches::kEnablePinch) ? 4.f : 1.f ;
2372   webview()->setPageScaleFactorLimits(1, maxPageScaleFactor);
2373 }
2374
2375 void RenderViewImpl::didClearWindowObject(WebLocalFrame* frame) {
2376   FOR_EACH_OBSERVER(
2377       RenderViewObserver, observers_, DidClearWindowObject(frame));
2378
2379   if (enabled_bindings_& BINDINGS_POLICY_WEB_UI)
2380     WebUIExtension::Install(frame);
2381
2382   if (enabled_bindings_ & BINDINGS_POLICY_STATS_COLLECTION)
2383     StatsCollectionController::Install(frame);
2384
2385   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
2386
2387   if (command_line.HasSwitch(switches::kEnableSkiaBenchmarking))
2388     SkiaBenchmarking::Install(frame);
2389
2390   if (command_line.HasSwitch(cc::switches::kEnableGpuBenchmarking))
2391     GpuBenchmarking::Install(frame);
2392
2393   if (command_line.HasSwitch(switches::kEnableMemoryBenchmarking))
2394     MemoryBenchmarkingExtension::Install(frame);
2395 }
2396
2397 void RenderViewImpl::didChangeIcon(WebLocalFrame* frame,
2398                                    WebIconURL::Type icon_type) {
2399   if (frame->parent())
2400     return;
2401
2402   if (!TouchEnabled() && icon_type != WebIconURL::TypeFavicon)
2403     return;
2404
2405   WebVector<WebIconURL> icon_urls = frame->iconURLs(icon_type);
2406   std::vector<FaviconURL> urls;
2407   for (size_t i = 0; i < icon_urls.size(); i++) {
2408     std::vector<gfx::Size> sizes;
2409     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
2410     urls.push_back(FaviconURL(
2411         icon_urls[i].iconURL(), ToFaviconType(icon_urls[i].iconType()), sizes));
2412   }
2413   SendUpdateFaviconURL(urls);
2414 }
2415
2416 void RenderViewImpl::didUpdateCurrentHistoryItem(WebLocalFrame* frame) {
2417   StartNavStateSyncTimerIfNecessary();
2418 }
2419
2420 void RenderViewImpl::CheckPreferredSize() {
2421   // We don't always want to send the change messages over IPC, only if we've
2422   // been put in that mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
2423   // message.
2424   if (!send_preferred_size_changes_ || !webview())
2425     return;
2426
2427   gfx::Size size = webview()->contentsPreferredMinimumSize();
2428
2429   // In the presence of zoom, these sizes are still reported as if unzoomed,
2430   // so we need to adjust.
2431   double zoom_factor = ZoomLevelToZoomFactor(webview()->zoomLevel());
2432   size.set_width(static_cast<int>(size.width() * zoom_factor));
2433   size.set_height(static_cast<int>(size.height() * zoom_factor));
2434
2435   if (size == preferred_size_)
2436     return;
2437
2438   preferred_size_ = size;
2439   Send(new ViewHostMsg_DidContentsPreferredSizeChange(routing_id_,
2440                                                       preferred_size_));
2441 }
2442
2443 BrowserPluginManager* RenderViewImpl::GetBrowserPluginManager() {
2444   if (!browser_plugin_manager_.get())
2445     browser_plugin_manager_ = BrowserPluginManager::Create(this);
2446   return browser_plugin_manager_.get();
2447 }
2448
2449 void RenderViewImpl::didChangeScrollOffset(WebLocalFrame* frame) {
2450   StartNavStateSyncTimerIfNecessary();
2451
2452   FOR_EACH_OBSERVER(
2453       RenderViewObserver, observers_, DidChangeScrollOffset(frame));
2454 }
2455
2456 void RenderViewImpl::SendFindReply(int request_id,
2457                                    int match_count,
2458                                    int ordinal,
2459                                    const WebRect& selection_rect,
2460                                    bool final_status_update) {
2461   Send(new ViewHostMsg_Find_Reply(routing_id_,
2462                                   request_id,
2463                                   match_count,
2464                                   selection_rect,
2465                                   ordinal,
2466                                   final_status_update));
2467 }
2468
2469 blink::WebString RenderViewImpl::acceptLanguages() {
2470   return WebString::fromUTF8(renderer_preferences_.accept_languages);
2471 }
2472
2473 // blink::WebPageSerializerClient implementation ------------------------------
2474
2475 void RenderViewImpl::didSerializeDataForFrame(
2476     const WebURL& frame_url,
2477     const WebCString& data,
2478     WebPageSerializerClient::PageSerializationStatus status) {
2479   Send(new ViewHostMsg_SendSerializedHtmlData(
2480     routing_id(),
2481     frame_url,
2482     data.data(),
2483     static_cast<int32>(status)));
2484 }
2485
2486 // RenderView implementation ---------------------------------------------------
2487
2488 bool RenderViewImpl::Send(IPC::Message* message) {
2489   return RenderWidget::Send(message);
2490 }
2491
2492 RenderFrameImpl* RenderViewImpl::GetMainRenderFrame() {
2493   return main_render_frame_.get();
2494 }
2495
2496 int RenderViewImpl::GetRoutingID() const {
2497   return routing_id_;
2498 }
2499
2500 gfx::Size RenderViewImpl::GetSize() const {
2501   return size();
2502 }
2503
2504 WebPreferences& RenderViewImpl::GetWebkitPreferences() {
2505   return webkit_preferences_;
2506 }
2507
2508 void RenderViewImpl::SetWebkitPreferences(const WebPreferences& preferences) {
2509   OnUpdateWebPreferences(preferences);
2510 }
2511
2512 blink::WebView* RenderViewImpl::GetWebView() {
2513   return webview();
2514 }
2515
2516 blink::WebElement RenderViewImpl::GetFocusedElement() const {
2517   if (!webview())
2518     return WebElement();
2519   WebFrame* focused_frame = webview()->focusedFrame();
2520   if (focused_frame) {
2521     WebDocument doc = focused_frame->document();
2522     if (!doc.isNull())
2523       return doc.focusedElement();
2524   }
2525
2526   return WebElement();
2527 }
2528
2529 bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
2530   if (node.isNull())
2531     return false;
2532
2533   if (node.isContentEditable())
2534     return true;
2535
2536   if (node.isElementNode()) {
2537     const WebElement& element = node.toConst<WebElement>();
2538     if (element.isTextFormControlElement()) {
2539       if (!(element.hasAttribute("readonly") ||
2540             element.hasAttribute("disabled")))
2541         return true;
2542     }
2543
2544     // Also return true if it has an ARIA role of 'textbox'.
2545     for (unsigned i = 0; i < element.attributeCount(); ++i) {
2546       if (LowerCaseEqualsASCII(element.attributeLocalName(i), "role")) {
2547         if (LowerCaseEqualsASCII(element.attributeValue(i), "textbox"))
2548           return true;
2549         break;
2550       }
2551     }
2552   }
2553
2554   return false;
2555 }
2556
2557 bool RenderViewImpl::NodeContainsPoint(const WebNode& node,
2558                                        const gfx::Point& point) const {
2559   blink::WebHitTestResult hit_test =
2560       webview()->hitTestResultAt(WebPoint(point.x(), point.y()));
2561   return node.containsIncludingShadowDOM(hit_test.node());
2562 }
2563
2564 bool RenderViewImpl::ShouldDisplayScrollbars(int width, int height) const {
2565   return (!send_preferred_size_changes_ ||
2566           (disable_scrollbars_size_limit_.width() <= width ||
2567            disable_scrollbars_size_limit_.height() <= height));
2568 }
2569
2570 int RenderViewImpl::GetEnabledBindings() const {
2571   return enabled_bindings_;
2572 }
2573
2574 bool RenderViewImpl::GetContentStateImmediately() const {
2575   return send_content_state_immediately_;
2576 }
2577
2578 blink::WebPageVisibilityState RenderViewImpl::GetVisibilityState() const {
2579   return visibilityState();
2580 }
2581
2582 void RenderViewImpl::DidStartLoading() {
2583   main_render_frame_->didStartLoading(true);
2584 }
2585
2586 void RenderViewImpl::DidStopLoading() {
2587   main_render_frame_->didStopLoading();
2588 }
2589
2590 void RenderViewImpl::SyncNavigationState() {
2591   if (!webview())
2592     return;
2593   SendUpdateState(history_controller_->GetCurrentEntry());
2594 }
2595
2596 blink::WebPlugin* RenderViewImpl::GetWebPluginForFind() {
2597   if (!webview())
2598     return NULL;
2599
2600   WebFrame* main_frame = webview()->mainFrame();
2601   if (main_frame->isWebLocalFrame() &&
2602       main_frame->document().isPluginDocument())
2603     return webview()->mainFrame()->document().to<WebPluginDocument>().plugin();
2604
2605 #if defined(ENABLE_PLUGINS)
2606   if (plugin_find_handler_)
2607     return plugin_find_handler_->container()->plugin();
2608 #endif
2609
2610   return NULL;
2611 }
2612
2613 void RenderViewImpl::OnFind(int request_id,
2614                             const base::string16& search_text,
2615                             const WebFindOptions& options) {
2616   WebFrame* main_frame = webview()->mainFrame();
2617   blink::WebPlugin* plugin = GetWebPluginForFind();
2618   // Check if the plugin still exists in the document.
2619   if (plugin) {
2620     if (options.findNext) {
2621       // Just navigate back/forward.
2622       plugin->selectFindResult(options.forward);
2623     } else {
2624       if (!plugin->startFind(
2625           search_text, options.matchCase, request_id)) {
2626         // Send "no results".
2627         SendFindReply(request_id, 0, 0, gfx::Rect(), true);
2628       }
2629     }
2630     return;
2631   }
2632
2633   WebFrame* frame_after_main = main_frame->traverseNext(true);
2634   WebFrame* focused_frame = webview()->focusedFrame();
2635   WebFrame* search_frame = focused_frame;  // start searching focused frame.
2636
2637   bool multi_frame = (frame_after_main != main_frame);
2638
2639   // If we have multiple frames, we don't want to wrap the search within the
2640   // frame, so we check here if we only have main_frame in the chain.
2641   bool wrap_within_frame = !multi_frame;
2642
2643   WebRect selection_rect;
2644   bool result = false;
2645
2646   // If something is selected when we start searching it means we cannot just
2647   // increment the current match ordinal; we need to re-generate it.
2648   WebRange current_selection = focused_frame->selectionRange();
2649
2650   do {
2651     result = search_frame->find(
2652         request_id, search_text, options, wrap_within_frame, &selection_rect);
2653
2654     if (!result) {
2655       // don't leave text selected as you move to the next frame.
2656       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2657                                    GetFocusedElement());
2658
2659       // Find the next frame, but skip the invisible ones.
2660       do {
2661         // What is the next frame to search? (we might be going backwards). Note
2662         // that we specify wrap=true so that search_frame never becomes NULL.
2663         search_frame = options.forward ?
2664             search_frame->traverseNext(true) :
2665             search_frame->traversePrevious(true);
2666       } while (!search_frame->hasVisibleContent() &&
2667                search_frame != focused_frame);
2668
2669       // Make sure selection doesn't affect the search operation in new frame.
2670       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2671                                    GetFocusedElement());
2672
2673       // If we have multiple frames and we have wrapped back around to the
2674       // focused frame, we need to search it once more allowing wrap within
2675       // the frame, otherwise it will report 'no match' if the focused frame has
2676       // reported matches, but no frames after the focused_frame contain a
2677       // match for the search word(s).
2678       if (multi_frame && search_frame == focused_frame) {
2679         result = search_frame->find(
2680             request_id, search_text, options, true,  // Force wrapping.
2681             &selection_rect);
2682       }
2683     }
2684
2685     webview()->setFocusedFrame(search_frame);
2686   } while (!result && search_frame != focused_frame);
2687
2688   if (options.findNext && current_selection.isNull()) {
2689     // Force the main_frame to report the actual count.
2690     main_frame->increaseMatchCount(0, request_id);
2691   } else {
2692     // If nothing is found, set result to "0 of 0", otherwise, set it to
2693     // "-1 of 1" to indicate that we found at least one item, but we don't know
2694     // yet what is active.
2695     int ordinal = result ? -1 : 0;  // -1 here means, we might know more later.
2696     int match_count = result ? 1 : 0;  // 1 here means possibly more coming.
2697
2698     // If we find no matches then this will be our last status update.
2699     // Otherwise the scoping effort will send more results.
2700     bool final_status_update = !result;
2701
2702     SendFindReply(request_id, match_count, ordinal, selection_rect,
2703                   final_status_update);
2704
2705     // Scoping effort begins, starting with the mainframe.
2706     search_frame = main_frame;
2707
2708     main_frame->resetMatchCount();
2709
2710     do {
2711       // Cancel all old scoping requests before starting a new one.
2712       search_frame->cancelPendingScopingEffort();
2713
2714       // We don't start another scoping effort unless at least one match has
2715       // been found.
2716       if (result) {
2717         // Start new scoping request. If the scoping function determines that it
2718         // needs to scope, it will defer until later.
2719         search_frame->scopeStringMatches(request_id,
2720                                          search_text,
2721                                          options,
2722                                          true);  // reset the tickmarks
2723       }
2724
2725       // Iterate to the next frame. The frame will not necessarily scope, for
2726       // example if it is not visible.
2727       search_frame = search_frame->traverseNext(true);
2728     } while (search_frame != main_frame);
2729   }
2730 }
2731
2732 void RenderViewImpl::OnStopFinding(StopFindAction action) {
2733   WebView* view = webview();
2734   if (!view)
2735     return;
2736
2737   blink::WebPlugin* plugin = GetWebPluginForFind();
2738   if (plugin) {
2739     plugin->stopFind();
2740     return;
2741   }
2742
2743   bool clear_selection = action == STOP_FIND_ACTION_CLEAR_SELECTION;
2744   if (clear_selection) {
2745     view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"),
2746                                          GetFocusedElement());
2747   }
2748
2749   WebFrame* frame = view->mainFrame();
2750   while (frame) {
2751     frame->stopFinding(clear_selection);
2752     frame = frame->traverseNext(false);
2753   }
2754
2755   if (action == STOP_FIND_ACTION_ACTIVATE_SELECTION) {
2756     WebFrame* focused_frame = view->focusedFrame();
2757     if (focused_frame) {
2758       WebDocument doc = focused_frame->document();
2759       if (!doc.isNull()) {
2760         WebElement element = doc.focusedElement();
2761         if (!element.isNull())
2762           element.simulateClick();
2763       }
2764     }
2765   }
2766 }
2767
2768 #if defined(OS_ANDROID)
2769 void RenderViewImpl::OnActivateNearestFindResult(int request_id,
2770                                                  float x, float y) {
2771   if (!webview())
2772       return;
2773
2774   WebFrame* main_frame = webview()->mainFrame();
2775   WebRect selection_rect;
2776   int ordinal = main_frame->selectNearestFindMatch(WebFloatPoint(x, y),
2777                                                    &selection_rect);
2778   if (ordinal == -1) {
2779     // Something went wrong, so send a no-op reply (force the main_frame to
2780     // report the current match count) in case the host is waiting for a
2781     // response due to rate-limiting).
2782     main_frame->increaseMatchCount(0, request_id);
2783     return;
2784   }
2785
2786   SendFindReply(request_id,
2787                 -1 /* number_of_matches */,
2788                 ordinal,
2789                 selection_rect,
2790                 true /* final_update */);
2791 }
2792
2793 void RenderViewImpl::OnFindMatchRects(int current_version) {
2794   if (!webview())
2795       return;
2796
2797   WebFrame* main_frame = webview()->mainFrame();
2798   std::vector<gfx::RectF> match_rects;
2799
2800   int rects_version = main_frame->findMatchMarkersVersion();
2801   if (current_version != rects_version) {
2802     WebVector<WebFloatRect> web_match_rects;
2803     main_frame->findMatchRects(web_match_rects);
2804     match_rects.reserve(web_match_rects.size());
2805     for (size_t i = 0; i < web_match_rects.size(); ++i)
2806       match_rects.push_back(gfx::RectF(web_match_rects[i]));
2807   }
2808
2809   gfx::RectF active_rect = main_frame->activeFindMatchRect();
2810   Send(new ViewHostMsg_FindMatchRects_Reply(routing_id_,
2811                                                rects_version,
2812                                                match_rects,
2813                                                active_rect));
2814 }
2815 #endif
2816
2817 void RenderViewImpl::OnZoom(PageZoom zoom) {
2818   if (!webview())  // Not sure if this can happen, but no harm in being safe.
2819     return;
2820
2821   webview()->hidePopups();
2822
2823   double old_zoom_level = webview()->zoomLevel();
2824   double zoom_level;
2825   if (zoom == PAGE_ZOOM_RESET) {
2826     zoom_level = 0;
2827   } else if (static_cast<int>(old_zoom_level) == old_zoom_level) {
2828     // Previous zoom level is a whole number, so just increment/decrement.
2829     zoom_level = old_zoom_level + zoom;
2830   } else {
2831     // Either the user hit the zoom factor limit and thus the zoom level is now
2832     // not a whole number, or a plugin changed it to a custom value.  We want
2833     // to go to the next whole number so that the user can always get back to
2834     // 100% with the keyboard/menu.
2835     if ((old_zoom_level > 1 && zoom > 0) ||
2836         (old_zoom_level < 1 && zoom < 0)) {
2837       zoom_level = static_cast<int>(old_zoom_level + zoom);
2838     } else {
2839       // We're going towards 100%, so first go to the next whole number.
2840       zoom_level = static_cast<int>(old_zoom_level);
2841     }
2842   }
2843   webview()->setZoomLevel(zoom_level);
2844   zoomLevelChanged();
2845 }
2846
2847 void RenderViewImpl::OnSetZoomLevelForLoadingURL(const GURL& url,
2848                                                  double zoom_level) {
2849 #if !defined(OS_ANDROID)
2850   // On Android, page zoom isn't used, and in case of WebView, text zoom is used
2851   // for legacy WebView text scaling emulation. Thus, the code that resets
2852   // the zoom level from this map will be effectively resetting text zoom level.
2853   host_zoom_levels_[url] = zoom_level;
2854 #endif
2855 }
2856
2857 void RenderViewImpl::OnSetZoomLevelForView(bool uses_temporary_zoom_level,
2858                                            double level) {
2859   uses_temporary_zoom_level_ = uses_temporary_zoom_level;
2860
2861   webview()->hidePopups();
2862   webview()->setZoomLevel(level);
2863 }
2864
2865 void RenderViewImpl::OnSetPageEncoding(const std::string& encoding_name) {
2866   webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
2867 }
2868
2869 void RenderViewImpl::OnResetPageEncodingToDefault() {
2870   WebString no_encoding;
2871   webview()->setPageEncoding(no_encoding);
2872 }
2873
2874 void RenderViewImpl::OnPostMessageEvent(
2875     const ViewMsg_PostMessage_Params& params) {
2876   // TODO(nasko): Support sending to subframes.
2877   WebFrame* frame = webview()->mainFrame();
2878
2879   // Find the source frame if it exists.
2880   WebFrame* source_frame = NULL;
2881   if (params.source_routing_id != MSG_ROUTING_NONE) {
2882     RenderViewImpl* source_view = FromRoutingID(params.source_routing_id);
2883     if (source_view)
2884       source_frame = source_view->webview()->mainFrame();
2885   }
2886
2887   // If the message contained MessagePorts, create the corresponding endpoints.
2888   DCHECK_EQ(params.message_port_ids.size(), params.new_routing_ids.size());
2889   blink::WebMessagePortChannelArray channels(params.message_port_ids.size());
2890   for (size_t i = 0;
2891        i < params.message_port_ids.size() && i < params.new_routing_ids.size();
2892        ++i) {
2893     channels[i] =
2894         new WebMessagePortChannelImpl(params.new_routing_ids[i],
2895                                       params.message_port_ids[i],
2896                                       base::MessageLoopProxy::current().get());
2897   }
2898
2899   WebSerializedScriptValue serialized_script_value;
2900   if (params.is_data_raw_string) {
2901     v8::HandleScope handle_scope(blink::mainThreadIsolate());
2902     v8::Local<v8::Context> context = frame->mainWorldScriptContext();
2903     v8::Context::Scope context_scope(context);
2904     V8ValueConverterImpl converter;
2905     converter.SetDateAllowed(true);
2906     converter.SetRegExpAllowed(true);
2907     scoped_ptr<base::Value> value(new base::StringValue(params.data));
2908     v8::Handle<v8::Value> result_value = converter.ToV8Value(value.get(),
2909                                                              context);
2910     serialized_script_value = WebSerializedScriptValue::serialize(result_value);
2911   } else {
2912     serialized_script_value = WebSerializedScriptValue::fromString(params.data);
2913   }
2914
2915   // Create an event with the message.  The final parameter to initMessageEvent
2916   // is the last event ID, which is not used with postMessage.
2917   WebDOMEvent event = frame->document().createEvent("MessageEvent");
2918   WebDOMMessageEvent msg_event = event.to<WebDOMMessageEvent>();
2919   msg_event.initMessageEvent("message",
2920                              // |canBubble| and |cancellable| are always false
2921                              false, false,
2922                              serialized_script_value,
2923                              params.source_origin, source_frame, "", channels);
2924
2925   // We must pass in the target_origin to do the security check on this side,
2926   // since it may have changed since the original postMessage call was made.
2927   WebSecurityOrigin target_origin;
2928   if (!params.target_origin.empty()) {
2929     target_origin =
2930         WebSecurityOrigin::createFromString(WebString(params.target_origin));
2931   }
2932   frame->dispatchMessageEventWithOriginCheck(target_origin, msg_event);
2933 }
2934
2935 void RenderViewImpl::OnAllowBindings(int enabled_bindings_flags) {
2936   if ((enabled_bindings_flags & BINDINGS_POLICY_WEB_UI) &&
2937       !(enabled_bindings_ & BINDINGS_POLICY_WEB_UI)) {
2938     // WebUIExtensionData deletes itself when we're destroyed.
2939     new WebUIExtensionData(this);
2940     // WebUIMojo deletes itself when we're destroyed.
2941     new WebUIMojo(this);
2942   }
2943
2944   enabled_bindings_ |= enabled_bindings_flags;
2945
2946   // Keep track of the total bindings accumulated in this process.
2947   RenderProcess::current()->AddBindings(enabled_bindings_flags);
2948 }
2949
2950 void RenderViewImpl::OnDragTargetDragEnter(const DropData& drop_data,
2951                                            const gfx::Point& client_point,
2952                                            const gfx::Point& screen_point,
2953                                            WebDragOperationsMask ops,
2954                                            int key_modifiers) {
2955   WebDragOperation operation = webview()->dragTargetDragEnter(
2956       DropDataToWebDragData(drop_data),
2957       client_point,
2958       screen_point,
2959       ops,
2960       key_modifiers);
2961
2962   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2963 }
2964
2965 void RenderViewImpl::OnDragTargetDragOver(const gfx::Point& client_point,
2966                                           const gfx::Point& screen_point,
2967                                           WebDragOperationsMask ops,
2968                                           int key_modifiers) {
2969   WebDragOperation operation = webview()->dragTargetDragOver(
2970       client_point,
2971       screen_point,
2972       ops,
2973       key_modifiers);
2974
2975   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2976 }
2977
2978 void RenderViewImpl::OnDragTargetDragLeave() {
2979   webview()->dragTargetDragLeave();
2980 }
2981
2982 void RenderViewImpl::OnDragTargetDrop(const gfx::Point& client_point,
2983                                       const gfx::Point& screen_point,
2984                                       int key_modifiers) {
2985   webview()->dragTargetDrop(client_point, screen_point, key_modifiers);
2986
2987   Send(new DragHostMsg_TargetDrop_ACK(routing_id_));
2988 }
2989
2990 void RenderViewImpl::OnDragSourceEnded(const gfx::Point& client_point,
2991                                        const gfx::Point& screen_point,
2992                                        WebDragOperation op) {
2993   webview()->dragSourceEndedAt(client_point, screen_point, op);
2994 }
2995
2996 void RenderViewImpl::OnDragSourceSystemDragEnded() {
2997   webview()->dragSourceSystemDragEnded();
2998 }
2999
3000 void RenderViewImpl::OnUpdateWebPreferences(const WebPreferences& prefs) {
3001   webkit_preferences_ = prefs;
3002   ApplyWebPreferences(webkit_preferences_, webview());
3003 }
3004
3005 void RenderViewImpl::OnEnumerateDirectoryResponse(
3006     int id,
3007     const std::vector<base::FilePath>& paths) {
3008   if (!enumeration_completions_[id])
3009     return;
3010
3011   WebVector<WebString> ws_file_names(paths.size());
3012   for (size_t i = 0; i < paths.size(); ++i)
3013     ws_file_names[i] = paths[i].AsUTF16Unsafe();
3014
3015   enumeration_completions_[id]->didChooseFile(ws_file_names);
3016   enumeration_completions_.erase(id);
3017 }
3018
3019 void RenderViewImpl::OnFileChooserResponse(
3020     const std::vector<content::FileChooserFileInfo>& files) {
3021   // This could happen if we navigated to a different page before the user
3022   // closed the chooser.
3023   if (file_chooser_completions_.empty())
3024     return;
3025
3026   // Convert Chrome's SelectedFileInfo list to WebKit's.
3027   WebVector<WebFileChooserCompletion::SelectedFileInfo> selected_files(
3028       files.size());
3029   for (size_t i = 0; i < files.size(); ++i) {
3030     WebFileChooserCompletion::SelectedFileInfo selected_file;
3031     selected_file.path = files[i].file_path.AsUTF16Unsafe();
3032     selected_file.displayName =
3033         base::FilePath(files[i].display_name).AsUTF16Unsafe();
3034     if (files[i].file_system_url.is_valid()) {
3035       selected_file.fileSystemURL = files[i].file_system_url;
3036       selected_file.length = files[i].length;
3037       selected_file.modificationTime = files[i].modification_time.ToDoubleT();
3038       selected_file.isDirectory = files[i].is_directory;
3039     }
3040     selected_files[i] = selected_file;
3041   }
3042
3043   if (file_chooser_completions_.front()->completion)
3044     file_chooser_completions_.front()->completion->didChooseFile(
3045         selected_files);
3046   file_chooser_completions_.pop_front();
3047
3048   // If there are more pending file chooser requests, schedule one now.
3049   if (!file_chooser_completions_.empty()) {
3050     Send(new ViewHostMsg_RunFileChooser(routing_id_,
3051         file_chooser_completions_.front()->params));
3052   }
3053 }
3054
3055 void RenderViewImpl::OnEnableAutoResize(const gfx::Size& min_size,
3056                                         const gfx::Size& max_size) {
3057   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
3058   if (!webview())
3059     return;
3060   auto_resize_mode_ = true;
3061   webview()->enableAutoResizeMode(min_size, max_size);
3062 }
3063
3064 void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
3065   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
3066   if (!webview())
3067     return;
3068   auto_resize_mode_ = false;
3069   webview()->disableAutoResizeMode();
3070
3071   if (!new_size.IsEmpty()) {
3072     Resize(new_size,
3073            physical_backing_size_,
3074            top_controls_layout_height_,
3075            visible_viewport_size_,
3076            resizer_rect_,
3077            is_fullscreen_,
3078            NO_RESIZE_ACK);
3079   }
3080 }
3081
3082 void RenderViewImpl::OnEnablePreferredSizeChangedMode() {
3083   if (send_preferred_size_changes_)
3084     return;
3085   send_preferred_size_changes_ = true;
3086
3087   // Start off with an initial preferred size notification (in case
3088   // |didUpdateLayout| was already called).
3089   didUpdateLayout();
3090 }
3091
3092 void RenderViewImpl::OnDisableScrollbarsForSmallWindows(
3093     const gfx::Size& disable_scrollbar_size_limit) {
3094   disable_scrollbars_size_limit_ = disable_scrollbar_size_limit;
3095 }
3096
3097 void RenderViewImpl::OnSetRendererPrefs(
3098     const RendererPreferences& renderer_prefs) {
3099   double old_zoom_level = renderer_preferences_.default_zoom_level;
3100   std::string old_accept_languages = renderer_preferences_.accept_languages;
3101
3102   renderer_preferences_ = renderer_prefs;
3103   UpdateFontRenderingFromRendererPrefs();
3104
3105 #if defined(USE_DEFAULT_RENDER_THEME)
3106   if (renderer_prefs.use_custom_colors) {
3107     WebColorName name = blink::WebColorWebkitFocusRingColor;
3108     blink::setNamedColors(&name, &renderer_prefs.focus_ring_color, 1);
3109     blink::setCaretBlinkInterval(renderer_prefs.caret_blink_interval);
3110
3111     if (webview()) {
3112       webview()->setSelectionColors(
3113           renderer_prefs.active_selection_bg_color,
3114           renderer_prefs.active_selection_fg_color,
3115           renderer_prefs.inactive_selection_bg_color,
3116           renderer_prefs.inactive_selection_fg_color);
3117       webview()->themeChanged();
3118     }
3119   }
3120 #endif  // defined(USE_DEFAULT_RENDER_THEME)
3121
3122   // If the zoom level for this page matches the old zoom default, and this
3123   // is not a plugin, update the zoom level to match the new default.
3124   if (webview() && webview()->mainFrame()->isWebLocalFrame() &&
3125       !webview()->mainFrame()->document().isPluginDocument() &&
3126       !ZoomValuesEqual(old_zoom_level,
3127                        renderer_preferences_.default_zoom_level) &&
3128       ZoomValuesEqual(webview()->zoomLevel(), old_zoom_level)) {
3129     webview()->setZoomLevel(renderer_preferences_.default_zoom_level);
3130     zoomLevelChanged();
3131   }
3132
3133   if (webview() &&
3134       old_accept_languages != renderer_preferences_.accept_languages) {
3135     webview()->acceptLanguagesChanged();
3136   }
3137 }
3138
3139 void RenderViewImpl::OnMediaPlayerActionAt(const gfx::Point& location,
3140                                            const WebMediaPlayerAction& action) {
3141   if (webview())
3142     webview()->performMediaPlayerAction(action, location);
3143 }
3144
3145 void RenderViewImpl::OnOrientationChange() {
3146   // TODO(mlamouri): consumers of that event should be using DisplayObserver.
3147   FOR_EACH_OBSERVER(RenderViewObserver,
3148                     observers_,
3149                     OrientationChangeEvent());
3150
3151   webview()->mainFrame()->toWebLocalFrame()->sendOrientationChangeEvent();
3152 }
3153
3154 void RenderViewImpl::OnPluginActionAt(const gfx::Point& location,
3155                                       const WebPluginAction& action) {
3156   if (webview())
3157     webview()->performPluginAction(action, location);
3158 }
3159
3160 void RenderViewImpl::OnGetAllSavableResourceLinksForCurrentPage(
3161     const GURL& page_url) {
3162   // Prepare list to storage all savable resource links.
3163   std::vector<GURL> resources_list;
3164   std::vector<GURL> referrer_urls_list;
3165   std::vector<blink::WebReferrerPolicy> referrer_policies_list;
3166   std::vector<GURL> frames_list;
3167   SavableResourcesResult result(&resources_list,
3168                                 &referrer_urls_list,
3169                                 &referrer_policies_list,
3170                                 &frames_list);
3171
3172   // webkit/ doesn't know about Referrer.
3173   if (!GetAllSavableResourceLinksForCurrentPage(
3174           webview(),
3175           page_url,
3176           &result,
3177           const_cast<const char**>(GetSavableSchemes()))) {
3178     // If something is wrong when collecting all savable resource links,
3179     // send empty list to embedder(browser) to tell it failed.
3180     referrer_urls_list.clear();
3181     referrer_policies_list.clear();
3182     resources_list.clear();
3183     frames_list.clear();
3184   }
3185
3186   std::vector<Referrer> referrers_list;
3187   CHECK_EQ(referrer_urls_list.size(), referrer_policies_list.size());
3188   for (unsigned i = 0; i < referrer_urls_list.size(); ++i) {
3189     referrers_list.push_back(
3190         Referrer(referrer_urls_list[i], referrer_policies_list[i]));
3191   }
3192
3193   // Send result of all savable resource links to embedder.
3194   Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id(),
3195                                                               resources_list,
3196                                                               referrers_list,
3197                                                               frames_list));
3198 }
3199
3200 void RenderViewImpl::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
3201     const std::vector<GURL>& links,
3202     const std::vector<base::FilePath>& local_paths,
3203     const base::FilePath& local_directory_name) {
3204
3205   // Convert std::vector of GURLs to WebVector<WebURL>
3206   WebVector<WebURL> weburl_links(links);
3207
3208   // Convert std::vector of base::FilePath to WebVector<WebString>
3209   WebVector<WebString> webstring_paths(local_paths.size());
3210   for (size_t i = 0; i < local_paths.size(); i++)
3211     webstring_paths[i] = local_paths[i].AsUTF16Unsafe();
3212
3213   WebPageSerializer::serialize(webview()->mainFrame()->toWebLocalFrame(),
3214                                true,
3215                                this,
3216                                weburl_links,
3217                                webstring_paths,
3218                                local_directory_name.AsUTF16Unsafe());
3219 }
3220
3221 void RenderViewImpl::OnSuppressDialogsUntilSwapOut() {
3222   // Don't show any more dialogs until we finish OnSwapOut.
3223   suppress_dialogs_until_swap_out_ = true;
3224 }
3225
3226 void RenderViewImpl::NavigateToSwappedOutURL(blink::WebFrame* frame) {
3227   // We use loadRequest instead of loadHTMLString because the former commits
3228   // synchronously.  Otherwise a new navigation can interrupt the navigation
3229   // to kSwappedOutURL. If that happens to be to the page we had been
3230   // showing, then WebKit will never send a commit and we'll be left spinning.
3231   // TODO(creis): Until we move this to RenderFrame, we may call this from a
3232   // swapped out RenderFrame while our own is_swapped_out_ is false.
3233   RenderFrameImpl* rf = RenderFrameImpl::FromWebFrame(frame);
3234   CHECK(is_swapped_out_ || rf->is_swapped_out());
3235   GURL swappedOutURL(kSwappedOutURL);
3236   WebURLRequest request(swappedOutURL);
3237   if (frame->isWebLocalFrame())
3238     frame->loadRequest(request);
3239 }
3240
3241 void RenderViewImpl::OnClosePage() {
3242   FOR_EACH_OBSERVER(RenderViewObserver, observers_, ClosePage());
3243   // TODO(creis): We'd rather use webview()->Close() here, but that currently
3244   // sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
3245   // in the onunload handler from appearing.  For now, we're bypassing that and
3246   // calling the FrameLoader's CloseURL method directly.  This should be
3247   // revisited to avoid having two ways to close a page.  Having a single way
3248   // to close that can run onunload is also useful for fixing
3249   // http://b/issue?id=753080.
3250   webview()->mainFrame()->dispatchUnloadEvent();
3251
3252   Send(new ViewHostMsg_ClosePage_ACK(routing_id_));
3253 }
3254
3255 void RenderViewImpl::OnThemeChanged() {
3256 #if defined(USE_AURA)
3257   // Aura doesn't care if we switch themes.
3258 #elif defined(OS_WIN)
3259   ui::NativeThemeWin::instance()->CloseHandles();
3260   if (webview())
3261     webview()->themeChanged();
3262 #else  // defined(OS_WIN)
3263   // TODO(port): we don't support theming on non-Windows platforms yet
3264   NOTIMPLEMENTED();
3265 #endif
3266 }
3267
3268 void RenderViewImpl::OnMoveOrResizeStarted() {
3269   if (webview())
3270     webview()->hidePopups();
3271 }
3272
3273 void RenderViewImpl::OnResize(const ViewMsg_Resize_Params& params) {
3274   TRACE_EVENT0("renderer", "RenderViewImpl::OnResize");
3275   if (webview()) {
3276     webview()->hidePopups();
3277     if (send_preferred_size_changes_) {
3278       webview()->mainFrame()->setCanHaveScrollbars(
3279           ShouldDisplayScrollbars(params.new_size.width(),
3280                                   params.new_size.height()));
3281     }
3282   }
3283
3284   gfx::Size old_visible_viewport_size = visible_viewport_size_;
3285
3286   RenderWidget::OnResize(params);
3287
3288   if (old_visible_viewport_size != visible_viewport_size_)
3289     has_scrolled_focused_editable_node_into_rect_ = false;
3290
3291   FOR_EACH_OBSERVER(RenderViewObserver,
3292                     observers_,
3293                     Resized());
3294 }
3295
3296 void RenderViewImpl::DidInitiatePaint() {
3297 #if defined(ENABLE_PLUGINS)
3298   // Notify all instances that we painted.  The same caveats apply as for
3299   // ViewFlushedPaint regarding instances closing themselves, so we take
3300   // similar precautions.
3301   PepperPluginSet plugins = active_pepper_instances_;
3302   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
3303     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
3304       (*i)->ViewInitiatedPaint();
3305   }
3306 #endif
3307 }
3308
3309 void RenderViewImpl::DidFlushPaint() {
3310 #if defined(ENABLE_PLUGINS)
3311   // Notify all instances that we flushed. This will call into the plugin, and
3312   // we it may ask to close itself as a result. This will, in turn, modify our
3313   // set, possibly invalidating the iterator. So we iterate on a copy that
3314   // won't change out from under us.
3315   PepperPluginSet plugins = active_pepper_instances_;
3316   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
3317     // The copy above makes sure our iterator is never invalid if some plugins
3318     // are destroyed. But some plugin may decide to close all of its views in
3319     // response to a paint in one of them, so we need to make sure each one is
3320     // still "current" before using it.
3321     //
3322     // It's possible that a plugin was destroyed, but another one was created
3323     // with the same address. In this case, we'll call ViewFlushedPaint on that
3324     // new plugin. But that's OK for this particular case since we're just
3325     // notifying all of our instances that the view flushed, and the new one is
3326     // one of our instances.
3327     //
3328     // What about the case where a new one is created in a callback at a new
3329     // address and we don't issue the callback? We're still OK since this
3330     // callback is used for flush callbacks and we could not have possibly
3331     // started a new paint for the new plugin while processing a previous paint
3332     // for an existing one.
3333     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
3334       (*i)->ViewFlushedPaint();
3335   }
3336 #endif
3337
3338   // If the RenderWidget is closing down then early-exit, otherwise we'll crash.
3339   // See crbug.com/112921.
3340   if (!webview())
3341     return;
3342
3343   WebFrame* main_frame = webview()->mainFrame();
3344   for (WebFrame* frame = main_frame; frame;
3345        frame = frame->traverseNext(false)) {
3346     // TODO(nasko): This is a hack for the case in which the top-level
3347     // frame is being rendered in another process. It will not
3348     // behave correctly for out of process iframes.
3349     if (frame->isWebLocalFrame()) {
3350       main_frame = frame;
3351       break;
3352     }
3353   }
3354
3355   // If we have a provisional frame we are between the start and commit stages
3356   // of loading and we don't want to save stats.
3357   if (!main_frame->provisionalDataSource()) {
3358     WebDataSource* ds = main_frame->dataSource();
3359     DocumentState* document_state = DocumentState::FromDataSource(ds);
3360
3361     // TODO(jar): The following code should all be inside a method, probably in
3362     // NavigatorState.
3363     Time now = Time::Now();
3364     if (document_state->first_paint_time().is_null()) {
3365       document_state->set_first_paint_time(now);
3366     }
3367     if (document_state->first_paint_after_load_time().is_null() &&
3368         !document_state->finish_load_time().is_null()) {
3369       document_state->set_first_paint_after_load_time(now);
3370     }
3371   }
3372 }
3373
3374 gfx::Vector2d RenderViewImpl::GetScrollOffset() {
3375   WebFrame* main_frame = webview()->mainFrame();
3376   for (WebFrame* frame = main_frame; frame;
3377        frame = frame->traverseNext(false)) {
3378     // TODO(nasko): This is a hack for the case in which the top-level
3379     // frame is being rendered in another process. It will not
3380     // behave correctly for out of process iframes.
3381     if (frame->isWebLocalFrame()) {
3382       main_frame = frame;
3383       break;
3384     }
3385   }
3386
3387   WebSize scroll_offset = main_frame->scrollOffset();
3388   return gfx::Vector2d(scroll_offset.width, scroll_offset.height);
3389 }
3390
3391 void RenderViewImpl::OnClearFocusedElement() {
3392   if (webview())
3393     webview()->clearFocusedElement();
3394 }
3395
3396 void RenderViewImpl::OnSetBackgroundOpaque(bool opaque) {
3397   if (webview())
3398     webview()->setIsTransparent(!opaque);
3399   if (compositor_)
3400     compositor_->setHasTransparentBackground(!opaque);
3401 }
3402
3403 void RenderViewImpl::OnSetActive(bool active) {
3404   if (webview())
3405     webview()->setIsActive(active);
3406
3407 #if defined(ENABLE_PLUGINS) && defined(OS_MACOSX)
3408   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3409   for (plugin_it = plugin_delegates_.begin();
3410        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3411     (*plugin_it)->SetWindowFocus(active);
3412   }
3413 #endif
3414 }
3415
3416 #if defined(OS_MACOSX)
3417 void RenderViewImpl::OnSetWindowVisibility(bool visible) {
3418 #if defined(ENABLE_PLUGINS)
3419   // Inform plugins that their container has changed visibility.
3420   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3421   for (plugin_it = plugin_delegates_.begin();
3422        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3423     (*plugin_it)->SetContainerVisibility(visible);
3424   }
3425 #endif
3426 }
3427
3428 void RenderViewImpl::OnWindowFrameChanged(const gfx::Rect& window_frame,
3429                                           const gfx::Rect& view_frame) {
3430 #if defined(ENABLE_PLUGINS)
3431   // Inform plugins that their window's frame has changed.
3432   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3433   for (plugin_it = plugin_delegates_.begin();
3434        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3435     (*plugin_it)->WindowFrameChanged(window_frame, view_frame);
3436   }
3437 #endif
3438 }
3439
3440 void RenderViewImpl::OnPluginImeCompositionCompleted(const base::string16& text,
3441                                                      int plugin_id) {
3442   // WebPluginDelegateProxy is responsible for figuring out if this event
3443   // applies to it or not, so inform all the delegates.
3444   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3445   for (plugin_it = plugin_delegates_.begin();
3446        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3447     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
3448   }
3449 }
3450 #endif  // OS_MACOSX
3451
3452 void RenderViewImpl::OnClose() {
3453   if (closing_)
3454     RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3455   RenderWidget::OnClose();
3456 }
3457
3458 void RenderViewImpl::Close() {
3459   // We need to grab a pointer to the doomed WebView before we destroy it.
3460   WebView* doomed = webview();
3461   RenderWidget::Close();
3462   g_view_map.Get().erase(doomed);
3463   g_routing_id_view_map.Get().erase(routing_id_);
3464   RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3465 }
3466
3467 void RenderViewImpl::DidHandleKeyEvent() {
3468   ClearEditCommands();
3469 }
3470
3471 bool RenderViewImpl::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
3472   possible_drag_event_info_.event_source =
3473       ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
3474   possible_drag_event_info_.event_location =
3475       gfx::Point(event.globalX, event.globalY);
3476
3477 #if defined(ENABLE_PLUGINS)
3478   // This method is called for every mouse event that the render view receives.
3479   // And then the mouse event is forwarded to WebKit, which dispatches it to the
3480   // event target. Potentially a Pepper plugin will receive the event.
3481   // In order to tell whether a plugin gets the last mouse event and which it
3482   // is, we set |pepper_last_mouse_event_target_| to NULL here. If a plugin gets
3483   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
3484   // |pepper_last_mouse_event_target_|.
3485   pepper_last_mouse_event_target_ = NULL;
3486 #endif
3487
3488   // If the mouse is locked, only the current owner of the mouse lock can
3489   // process mouse events.
3490   return mouse_lock_dispatcher_->WillHandleMouseEvent(event);
3491 }
3492
3493 bool RenderViewImpl::WillHandleGestureEvent(
3494     const blink::WebGestureEvent& event) {
3495   possible_drag_event_info_.event_source =
3496       ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
3497   possible_drag_event_info_.event_location =
3498       gfx::Point(event.globalX, event.globalY);
3499   return false;
3500 }
3501
3502 void RenderViewImpl::DidHandleMouseEvent(const WebMouseEvent& event) {
3503   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleMouseEvent(event));
3504 }
3505
3506 void RenderViewImpl::DidHandleTouchEvent(const WebTouchEvent& event) {
3507   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleTouchEvent(event));
3508 }
3509
3510 bool RenderViewImpl::HasTouchEventHandlersAt(const gfx::Point& point) const {
3511   if (!webview())
3512     return false;
3513   return webview()->hasTouchEventHandlersAt(point);
3514 }
3515
3516 void RenderViewImpl::OnWasHidden() {
3517   RenderWidget::OnWasHidden();
3518
3519 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3520   RenderThreadImpl::current()->video_capture_impl_manager()->
3521       SuspendDevices(true);
3522   if (speech_recognition_dispatcher_)
3523     speech_recognition_dispatcher_->AbortAllRecognitions();
3524 #endif
3525
3526   if (webview())
3527     webview()->setVisibilityState(visibilityState(), false);
3528
3529 #if defined(ENABLE_PLUGINS)
3530   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3531        i != active_pepper_instances_.end(); ++i)
3532     (*i)->PageVisibilityChanged(false);
3533
3534 #if defined(OS_MACOSX)
3535   // Inform NPAPI plugins that their container is no longer visible.
3536   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3537   for (plugin_it = plugin_delegates_.begin();
3538        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3539     (*plugin_it)->SetContainerVisibility(false);
3540   }
3541 #endif  // OS_MACOSX
3542 #endif // ENABLE_PLUGINS
3543 }
3544
3545 void RenderViewImpl::OnWasShown(bool needs_repainting,
3546                                 const ui::LatencyInfo& latency_info) {
3547   RenderWidget::OnWasShown(needs_repainting, latency_info);
3548
3549 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3550   RenderThreadImpl::current()->video_capture_impl_manager()->
3551       SuspendDevices(false);
3552 #endif
3553
3554   if (webview())
3555     webview()->setVisibilityState(visibilityState(), false);
3556
3557 #if defined(ENABLE_PLUGINS)
3558   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3559        i != active_pepper_instances_.end(); ++i)
3560     (*i)->PageVisibilityChanged(true);
3561
3562 #if defined(OS_MACOSX)
3563   // Inform NPAPI plugins that their container is now visible.
3564   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3565   for (plugin_it = plugin_delegates_.begin();
3566        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3567     (*plugin_it)->SetContainerVisibility(true);
3568   }
3569 #endif  // OS_MACOSX
3570 #endif  // ENABLE_PLUGINS
3571 }
3572
3573 GURL RenderViewImpl::GetURLForGraphicsContext3D() {
3574   DCHECK(webview());
3575   if (webview()->mainFrame()->isWebLocalFrame())
3576     return GURL(webview()->mainFrame()->document().url());
3577   else
3578     return GURL("chrome://gpu/RenderViewImpl::CreateGraphicsContext3D");
3579 }
3580
3581 void RenderViewImpl::OnSetFocus(bool enable) {
3582   RenderWidget::OnSetFocus(enable);
3583
3584 #if defined(ENABLE_PLUGINS)
3585   if (webview() && webview()->isActive()) {
3586     // Notify all NPAPI plugins.
3587     std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3588     for (plugin_it = plugin_delegates_.begin();
3589          plugin_it != plugin_delegates_.end(); ++plugin_it) {
3590 #if defined(OS_MACOSX)
3591       // RenderWidget's call to setFocus can cause the underlying webview's
3592       // activation state to change just like a call to setIsActive.
3593       if (enable)
3594         (*plugin_it)->SetWindowFocus(true);
3595 #endif
3596       (*plugin_it)->SetContentAreaFocus(enable);
3597     }
3598   }
3599   // Notify all Pepper plugins.
3600   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3601        i != active_pepper_instances_.end(); ++i)
3602     (*i)->SetContentAreaFocus(enable);
3603 #endif
3604   // Notify all BrowserPlugins of the RenderView's focus state.
3605   if (browser_plugin_manager_.get())
3606     browser_plugin_manager_->UpdateFocusState();
3607 }
3608
3609 void RenderViewImpl::OnImeSetComposition(
3610     const base::string16& text,
3611     const std::vector<blink::WebCompositionUnderline>& underlines,
3612     int selection_start,
3613     int selection_end) {
3614 #if defined(ENABLE_PLUGINS)
3615   if (focused_pepper_plugin_) {
3616     focused_pepper_plugin_->render_frame()->OnImeSetComposition(
3617         text, underlines, selection_start, selection_end);
3618     return;
3619   }
3620
3621 #if defined(OS_WIN)
3622   // When a plug-in has focus, we create platform-specific IME data used by
3623   // our IME emulator and send it directly to the focused plug-in, i.e. we
3624   // bypass WebKit. (WebPluginDelegate dispatches this IME data only when its
3625   // instance ID is the same one as the specified ID.)
3626   if (focused_plugin_id_ >= 0) {
3627     std::vector<int> clauses;
3628     std::vector<int> target;
3629     for (size_t i = 0; i < underlines.size(); ++i) {
3630       clauses.push_back(underlines[i].startOffset);
3631       clauses.push_back(underlines[i].endOffset);
3632       if (underlines[i].thick) {
3633         target.clear();
3634         target.push_back(underlines[i].startOffset);
3635         target.push_back(underlines[i].endOffset);
3636       }
3637     }
3638     std::set<WebPluginDelegateProxy*>::iterator it;
3639     for (it = plugin_delegates_.begin(); it != plugin_delegates_.end(); ++it) {
3640       (*it)->ImeCompositionUpdated(text, clauses, target, selection_end,
3641                                    focused_plugin_id_);
3642     }
3643     return;
3644   }
3645 #endif  // OS_WIN
3646 #endif  // ENABLE_PLUGINS
3647   RenderWidget::OnImeSetComposition(text,
3648                                     underlines,
3649                                     selection_start,
3650                                     selection_end);
3651 }
3652
3653 void RenderViewImpl::OnImeConfirmComposition(
3654     const base::string16& text,
3655     const gfx::Range& replacement_range,
3656     bool keep_selection) {
3657 #if defined(ENABLE_PLUGINS)
3658   if (focused_pepper_plugin_) {
3659     focused_pepper_plugin_->render_frame()->OnImeConfirmComposition(
3660         text, replacement_range, keep_selection);
3661     return;
3662   }
3663 #if defined(OS_WIN)
3664   // Same as OnImeSetComposition(), we send the text from IMEs directly to
3665   // plug-ins. When we send IME text directly to plug-ins, we should not send
3666   // it to WebKit to prevent WebKit from controlling IMEs.
3667   // TODO(thakis): Honor |replacement_range| for plugins?
3668   if (focused_plugin_id_ >= 0) {
3669     std::set<WebPluginDelegateProxy*>::iterator it;
3670     for (it = plugin_delegates_.begin();
3671           it != plugin_delegates_.end(); ++it) {
3672       (*it)->ImeCompositionCompleted(text, focused_plugin_id_);
3673     }
3674     return;
3675   }
3676 #endif  // OS_WIN
3677 #endif  // ENABLE_PLUGINS
3678   if (replacement_range.IsValid() && webview()) {
3679     // Select the text in |replacement_range|, it will then be replaced by
3680     // text added by the call to RenderWidget::OnImeConfirmComposition().
3681     if (WebLocalFrame* frame = webview()->focusedFrame()->toWebLocalFrame()) {
3682       WebRange webrange = WebRange::fromDocumentRange(
3683           frame, replacement_range.start(), replacement_range.length());
3684       if (!webrange.isNull())
3685         frame->selectRange(webrange);
3686     }
3687   }
3688   RenderWidget::OnImeConfirmComposition(text,
3689                                         replacement_range,
3690                                         keep_selection);
3691 }
3692
3693 void RenderViewImpl::SetDeviceScaleFactor(float device_scale_factor) {
3694   RenderWidget::SetDeviceScaleFactor(device_scale_factor);
3695   if (webview()) {
3696     webview()->setDeviceScaleFactor(device_scale_factor);
3697     webview()->settings()->setPreferCompositingToLCDTextEnabled(
3698         PreferCompositingToLCDText(device_scale_factor_));
3699     webview()->settings()->setAcceleratedCompositingForTransitionEnabled(
3700         ShouldUseTransitionCompositing(device_scale_factor_));
3701   }
3702   if (auto_resize_mode_)
3703     AutoResizeCompositor();
3704
3705   if (browser_plugin_manager_.get())
3706     browser_plugin_manager_->UpdateDeviceScaleFactor();
3707 }
3708
3709 bool RenderViewImpl::SetDeviceColorProfile(
3710     const std::vector<char>& profile) {
3711   bool changed = RenderWidget::SetDeviceColorProfile(profile);
3712   if (changed && webview()) {
3713     WebVector<char> colorProfile = profile;
3714     webview()->setDeviceColorProfile(colorProfile);
3715   }
3716   return changed;
3717 }
3718
3719 void RenderViewImpl::ResetDeviceColorProfileForTesting() {
3720   RenderWidget::ResetDeviceColorProfileForTesting();
3721   if (webview())
3722     webview()->resetDeviceColorProfile();
3723 }
3724
3725 ui::TextInputType RenderViewImpl::GetTextInputType() {
3726 #if defined(ENABLE_PLUGINS)
3727   if (focused_pepper_plugin_)
3728     return focused_pepper_plugin_->text_input_type();
3729 #endif
3730   return RenderWidget::GetTextInputType();
3731 }
3732
3733 void RenderViewImpl::GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) {
3734 #if defined(ENABLE_PLUGINS)
3735   if (focused_pepper_plugin_) {
3736     // TODO(kinaba) http://crbug.com/101101
3737     // Current Pepper IME API does not handle selection bounds. So we simply
3738     // use the caret position as an empty range for now. It will be updated
3739     // after Pepper API equips features related to surrounding text retrieval.
3740     gfx::Rect caret = focused_pepper_plugin_->GetCaretBounds();
3741     *start = caret;
3742     *end = caret;
3743     return;
3744   }
3745 #endif
3746   RenderWidget::GetSelectionBounds(start, end);
3747 }
3748
3749 #if defined(OS_MACOSX) || defined(USE_AURA) || defined(OS_ANDROID)
3750 void RenderViewImpl::GetCompositionCharacterBounds(
3751     std::vector<gfx::Rect>* bounds) {
3752   DCHECK(bounds);
3753   bounds->clear();
3754
3755 #if defined(ENABLE_PLUGINS)
3756   if (focused_pepper_plugin_) {
3757     return;
3758   }
3759 #endif
3760
3761   if (!webview())
3762     return;
3763   size_t start_offset = 0;
3764   size_t character_count = 0;
3765   if (!webview()->compositionRange(&start_offset, &character_count))
3766     return;
3767   if (character_count == 0)
3768     return;
3769
3770   blink::WebFrame* frame = webview()->focusedFrame();
3771   if (!frame)
3772     return;
3773
3774   bounds->reserve(character_count);
3775   blink::WebRect webrect;
3776   for (size_t i = 0; i < character_count; ++i) {
3777     if (!frame->firstRectForCharacterRange(start_offset + i, 1, webrect)) {
3778       DLOG(ERROR) << "Could not retrieve character rectangle at " << i;
3779       bounds->clear();
3780       return;
3781     }
3782     bounds->push_back(webrect);
3783   }
3784 }
3785
3786 void RenderViewImpl::GetCompositionRange(gfx::Range* range) {
3787 #if defined(ENABLE_PLUGINS)
3788   if (focused_pepper_plugin_) {
3789     return;
3790   }
3791 #endif
3792   RenderWidget::GetCompositionRange(range);
3793 }
3794 #endif
3795
3796 bool RenderViewImpl::CanComposeInline() {
3797 #if defined(ENABLE_PLUGINS)
3798   if (focused_pepper_plugin_)
3799     return focused_pepper_plugin_->IsPluginAcceptingCompositionEvents();
3800 #endif
3801   return true;
3802 }
3803
3804 void RenderViewImpl::InstrumentWillBeginFrame(int frame_id) {
3805   if (!webview())
3806     return;
3807   if (!webview()->devToolsAgent())
3808     return;
3809   webview()->devToolsAgent()->didBeginFrame(frame_id);
3810 }
3811
3812 void RenderViewImpl::InstrumentDidBeginFrame() {
3813   if (!webview())
3814     return;
3815   if (!webview()->devToolsAgent())
3816     return;
3817   // TODO(jamesr/caseq): Decide if this needs to be renamed.
3818   webview()->devToolsAgent()->didComposite();
3819 }
3820
3821 void RenderViewImpl::InstrumentDidCancelFrame() {
3822   if (!webview())
3823     return;
3824   if (!webview()->devToolsAgent())
3825     return;
3826   webview()->devToolsAgent()->didCancelFrame();
3827 }
3828
3829 void RenderViewImpl::InstrumentWillComposite() {
3830   if (!webview())
3831     return;
3832   if (!webview()->devToolsAgent())
3833     return;
3834   webview()->devToolsAgent()->willComposite();
3835 }
3836
3837 void RenderViewImpl::SetScreenMetricsEmulationParameters(
3838     float device_scale_factor,
3839     const gfx::Point& root_layer_offset,
3840     float root_layer_scale) {
3841   if (webview() && compositor()) {
3842     webview()->setCompositorDeviceScaleFactorOverride(device_scale_factor);
3843     webview()->setRootLayerTransform(
3844         blink::WebSize(root_layer_offset.x(), root_layer_offset.y()),
3845         root_layer_scale);
3846   }
3847 }
3848
3849 bool RenderViewImpl::ScheduleFileChooser(
3850     const FileChooserParams& params,
3851     WebFileChooserCompletion* completion) {
3852   static const size_t kMaximumPendingFileChooseRequests = 4;
3853   if (file_chooser_completions_.size() > kMaximumPendingFileChooseRequests) {
3854     // This sanity check prevents too many file choose requests from getting
3855     // queued which could DoS the user. Getting these is most likely a
3856     // programming error (there are many ways to DoS the user so it's not
3857     // considered a "real" security check), either in JS requesting many file
3858     // choosers to pop up, or in a plugin.
3859     //
3860     // TODO(brettw) we might possibly want to require a user gesture to open
3861     // a file picker, which will address this issue in a better way.
3862     return false;
3863   }
3864
3865   file_chooser_completions_.push_back(linked_ptr<PendingFileChooser>(
3866       new PendingFileChooser(params, completion)));
3867   if (file_chooser_completions_.size() == 1) {
3868     // Actually show the browse dialog when this is the first request.
3869     Send(new ViewHostMsg_RunFileChooser(routing_id_, params));
3870   }
3871   return true;
3872 }
3873
3874 blink::WebSpeechRecognizer* RenderViewImpl::speechRecognizer() {
3875   if (!speech_recognition_dispatcher_)
3876     speech_recognition_dispatcher_ = new SpeechRecognitionDispatcher(this);
3877   return speech_recognition_dispatcher_;
3878 }
3879
3880 void RenderViewImpl::zoomLimitsChanged(double minimum_level,
3881                                        double maximum_level) {
3882   int minimum_percent = static_cast<int>(
3883       ZoomLevelToZoomFactor(minimum_level) * 100);
3884   int maximum_percent = static_cast<int>(
3885       ZoomLevelToZoomFactor(maximum_level) * 100);
3886
3887   Send(new ViewHostMsg_UpdateZoomLimits(
3888       routing_id_, minimum_percent, maximum_percent));
3889 }
3890
3891 void RenderViewImpl::zoomLevelChanged() {
3892   double zoom_level = webview()->zoomLevel();
3893
3894   // Do not send empty URLs to the browser when we are just setting the default
3895   // zoom level (from RendererPreferences) before the first navigation.
3896   if (!webview()->mainFrame()->document().url().isEmpty()) {
3897     // Tell the browser which url got zoomed so it can update the menu and the
3898     // saved values if necessary
3899     Send(new ViewHostMsg_DidZoomURL(
3900         routing_id_, zoom_level,
3901         GURL(webview()->mainFrame()->document().url())));
3902   }
3903 }
3904
3905 double RenderViewImpl::zoomLevelToZoomFactor(double zoom_level) const {
3906   return ZoomLevelToZoomFactor(zoom_level);
3907 }
3908
3909 double RenderViewImpl::zoomFactorToZoomLevel(double factor) const {
3910   return ZoomFactorToZoomLevel(factor);
3911 }
3912
3913 void RenderViewImpl::registerProtocolHandler(const WebString& scheme,
3914                                              const WebURL& url,
3915                                              const WebString& title) {
3916   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3917   Send(new ViewHostMsg_RegisterProtocolHandler(routing_id_,
3918                                                base::UTF16ToUTF8(scheme),
3919                                                url,
3920                                                title,
3921                                                user_gesture));
3922 }
3923
3924 void RenderViewImpl::unregisterProtocolHandler(const WebString& scheme,
3925                                                const WebURL& url) {
3926   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3927   Send(new ViewHostMsg_UnregisterProtocolHandler(routing_id_,
3928                                                  base::UTF16ToUTF8(scheme),
3929                                                  url,
3930                                                  user_gesture));
3931 }
3932
3933 blink::WebPageVisibilityState RenderViewImpl::visibilityState() const {
3934   blink::WebPageVisibilityState current_state = is_hidden() ?
3935       blink::WebPageVisibilityStateHidden :
3936       blink::WebPageVisibilityStateVisible;
3937   blink::WebPageVisibilityState override_state = current_state;
3938   // TODO(jam): move this method to WebFrameClient.
3939   if (GetContentClient()->renderer()->
3940           ShouldOverridePageVisibilityState(main_render_frame_.get(),
3941                                             &override_state))
3942     return override_state;
3943   return current_state;
3944 }
3945
3946 blink::WebPushClient* RenderViewImpl::webPushClient() {
3947   // TODO(mvanouwerkerk): Remove this method once the Push API code in Blink
3948   // has also switched over to Frame.
3949   return main_render_frame_->pushClient();
3950 }
3951
3952 void RenderViewImpl::draggableRegionsChanged() {
3953   FOR_EACH_OBSERVER(
3954       RenderViewObserver,
3955       observers_,
3956       DraggableRegionsChanged(webview()->mainFrame()));
3957 }
3958
3959 #if defined(OS_ANDROID)
3960 WebContentDetectionResult RenderViewImpl::detectContentAround(
3961     const WebHitTestResult& touch_hit) {
3962   DCHECK(!touch_hit.isNull());
3963   DCHECK(!touch_hit.node().isNull());
3964   DCHECK(touch_hit.node().isTextNode());
3965
3966   // Process the position with all the registered content detectors until
3967   // a match is found. Priority is provided by their relative order.
3968   for (ContentDetectorList::const_iterator it = content_detectors_.begin();
3969       it != content_detectors_.end(); ++it) {
3970     ContentDetector::Result content = (*it)->FindTappedContent(touch_hit);
3971     if (content.valid) {
3972       return WebContentDetectionResult(content.content_boundaries,
3973           base::UTF8ToUTF16(content.text), content.intent_url);
3974     }
3975   }
3976   return WebContentDetectionResult();
3977 }
3978
3979 void RenderViewImpl::scheduleContentIntent(const WebURL& intent) {
3980   // Introduce a short delay so that the user can notice the content.
3981   base::MessageLoop::current()->PostDelayedTask(
3982       FROM_HERE,
3983       base::Bind(&RenderViewImpl::LaunchAndroidContentIntent,
3984                  AsWeakPtr(),
3985                  intent,
3986                  expected_content_intent_id_),
3987       base::TimeDelta::FromMilliseconds(kContentIntentDelayMilliseconds));
3988 }
3989
3990 void RenderViewImpl::cancelScheduledContentIntents() {
3991   ++expected_content_intent_id_;
3992 }
3993
3994 void RenderViewImpl::LaunchAndroidContentIntent(const GURL& intent,
3995                                                 size_t request_id) {
3996   if (request_id != expected_content_intent_id_)
3997       return;
3998
3999   // Remove the content highlighting if any.
4000   scheduleComposite();
4001
4002   if (!intent.is_empty())
4003     Send(new ViewHostMsg_StartContentIntent(routing_id_, intent));
4004 }
4005
4006 bool RenderViewImpl::openDateTimeChooser(
4007     const blink::WebDateTimeChooserParams& params,
4008     blink::WebDateTimeChooserCompletion* completion) {
4009   // JavaScript may try to open a date time chooser while one is already open.
4010   if (date_time_picker_client_)
4011     return false;
4012   date_time_picker_client_.reset(
4013       new RendererDateTimePicker(this, params, completion));
4014   return date_time_picker_client_->Open();
4015 }
4016
4017 void RenderViewImpl::DismissDateTimeDialog() {
4018   DCHECK(date_time_picker_client_);
4019   date_time_picker_client_.reset(NULL);
4020 }
4021
4022 #endif  // defined(OS_ANDROID)
4023
4024 void RenderViewImpl::OnShowContextMenu(
4025     ui::MenuSourceType source_type, const gfx::Point& location) {
4026   context_menu_source_type_ = source_type;
4027   has_host_context_menu_location_ = true;
4028   host_context_menu_location_ = location;
4029   if (webview())
4030     webview()->showContextMenu();
4031   has_host_context_menu_location_ = false;
4032 }
4033
4034 void RenderViewImpl::OnEnableViewSourceMode() {
4035   if (!webview())
4036     return;
4037   WebFrame* main_frame = webview()->mainFrame();
4038   if (!main_frame)
4039     return;
4040   main_frame->enableViewSourceMode(true);
4041 }
4042
4043 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
4044 bool RenderViewImpl::didTapMultipleTargets(
4045     const WebSize& inner_viewport_offset,
4046     const WebRect& touch_rect,
4047     const WebVector<WebRect>& target_rects) {
4048   // Never show a disambiguation popup when accessibility is enabled,
4049   // as this interferes with "touch exploration".
4050   AccessibilityMode accessibility_mode =
4051       GetMainRenderFrame()->accessibility_mode();
4052   bool matches_accessibility_mode_complete =
4053       (accessibility_mode & AccessibilityModeComplete) ==
4054           AccessibilityModeComplete;
4055   if (matches_accessibility_mode_complete)
4056     return false;
4057
4058   // The touch_rect, target_rects and zoom_rect are in the outer viewport
4059   // reference frame.
4060   gfx::Rect zoom_rect;
4061   float new_total_scale =
4062       DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
4063           touch_rect, target_rects, GetSize(),
4064           gfx::Rect(webview()->mainFrame()->visibleContentRect()).size(),
4065           device_scale_factor_ * webview()->pageScaleFactor(), &zoom_rect);
4066   if (!new_total_scale)
4067     return false;
4068
4069   bool handled = false;
4070   switch (renderer_preferences_.tap_multiple_targets_strategy) {
4071     case TAP_MULTIPLE_TARGETS_STRATEGY_ZOOM:
4072       handled = webview()->zoomToMultipleTargetsRect(zoom_rect);
4073       break;
4074     case TAP_MULTIPLE_TARGETS_STRATEGY_POPUP: {
4075       gfx::Size canvas_size =
4076           gfx::ToCeiledSize(gfx::ScaleSize(zoom_rect.size(), new_total_scale));
4077       cc::SharedBitmapManager* manager =
4078           RenderThreadImpl::current()->shared_bitmap_manager();
4079       scoped_ptr<cc::SharedBitmap> shared_bitmap =
4080           manager->AllocateSharedBitmap(canvas_size);
4081       {
4082         SkBitmap bitmap;
4083         SkImageInfo info = SkImageInfo::MakeN32Premul(canvas_size.width(),
4084                                                       canvas_size.height());
4085         bitmap.installPixels(info, shared_bitmap->pixels(), info.minRowBytes());
4086         SkCanvas canvas(bitmap);
4087
4088         // TODO(trchen): Cleanup the device scale factor mess.
4089         // device scale will be applied in WebKit
4090         // --> zoom_rect doesn't include device scale,
4091         //     but WebKit will still draw on zoom_rect * device_scale_factor_
4092         canvas.scale(new_total_scale / device_scale_factor_,
4093                      new_total_scale / device_scale_factor_);
4094         canvas.translate(-zoom_rect.x() * device_scale_factor_,
4095                          -zoom_rect.y() * device_scale_factor_);
4096
4097         DCHECK(webwidget_->isAcceleratedCompositingActive());
4098         // TODO(aelias): The disambiguation popup should be composited so we
4099         // don't have to call this method.
4100         webwidget_->paintCompositedDeprecated(&canvas, zoom_rect);
4101       }
4102
4103       gfx::Rect zoom_rect_in_screen =
4104           zoom_rect - gfx::Vector2d(inner_viewport_offset.width,
4105                                     inner_viewport_offset.height);
4106
4107       gfx::Rect physical_window_zoom_rect = gfx::ToEnclosingRect(
4108           ClientRectToPhysicalWindowRect(gfx::RectF(zoom_rect_in_screen)));
4109
4110       Send(new ViewHostMsg_ShowDisambiguationPopup(routing_id_,
4111                                                    physical_window_zoom_rect,
4112                                                    canvas_size,
4113                                                    shared_bitmap->id()));
4114       cc::SharedBitmapId id = shared_bitmap->id();
4115       disambiguation_bitmaps_[id] = shared_bitmap.release();
4116       handled = true;
4117       break;
4118     }
4119     case TAP_MULTIPLE_TARGETS_STRATEGY_NONE:
4120       // No-op.
4121       break;
4122   }
4123
4124   return handled;
4125 }
4126 #endif  // defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
4127
4128 unsigned RenderViewImpl::GetLocalSessionHistoryLengthForTesting() const {
4129   return history_list_length_;
4130 }
4131
4132 void RenderViewImpl::SetFocusAndActivateForTesting(bool enable) {
4133   if (enable) {
4134     if (has_focus())
4135       return;
4136     OnSetActive(true);
4137     OnSetFocus(true);
4138   } else {
4139     if (!has_focus())
4140       return;
4141     OnSetFocus(false);
4142     OnSetActive(false);
4143   }
4144 }
4145
4146 void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
4147   ViewMsg_Resize_Params params;
4148   params.screen_info = screen_info_;
4149   params.screen_info.deviceScaleFactor = factor;
4150   params.new_size = size();
4151   params.visible_viewport_size = visible_viewport_size_;
4152   params.physical_backing_size =
4153       gfx::ToCeiledSize(gfx::ScaleSize(size(), factor));
4154   params.top_controls_layout_height = 0.f;
4155   params.resizer_rect = WebRect();
4156   params.is_fullscreen = is_fullscreen();
4157   OnResize(params);
4158 }
4159
4160 void RenderViewImpl::SetDeviceColorProfileForTesting(
4161     const std::vector<char>& color_profile) {
4162   SetDeviceColorProfile(color_profile);
4163 }
4164
4165 void RenderViewImpl::ForceResizeForTesting(const gfx::Size& new_size) {
4166   gfx::Rect new_position(rootWindowRect().x,
4167                          rootWindowRect().y,
4168                          new_size.width(),
4169                          new_size.height());
4170   ResizeSynchronously(new_position, new_size);
4171 }
4172
4173 void RenderViewImpl::UseSynchronousResizeModeForTesting(bool enable) {
4174   resizing_mode_selector_->set_is_synchronous_mode(enable);
4175 }
4176
4177 void RenderViewImpl::EnableAutoResizeForTesting(const gfx::Size& min_size,
4178                                                 const gfx::Size& max_size) {
4179   OnEnableAutoResize(min_size, max_size);
4180 }
4181
4182 void RenderViewImpl::DisableAutoResizeForTesting(const gfx::Size& new_size) {
4183   OnDisableAutoResize(new_size);
4184 }
4185
4186 void RenderViewImpl::OnReleaseDisambiguationPopupBitmap(
4187     const cc::SharedBitmapId& id) {
4188   BitmapMap::iterator it = disambiguation_bitmaps_.find(id);
4189   DCHECK(it != disambiguation_bitmaps_.end());
4190   delete it->second;
4191   disambiguation_bitmaps_.erase(it);
4192 }
4193
4194 void RenderViewImpl::DidCommitCompositorFrame() {
4195   RenderWidget::DidCommitCompositorFrame();
4196   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
4197 }
4198
4199 void RenderViewImpl::SendUpdateFaviconURL(const std::vector<FaviconURL>& urls) {
4200   if (!urls.empty())
4201     Send(new ViewHostMsg_UpdateFaviconURL(routing_id_, urls));
4202 }
4203
4204 void RenderViewImpl::DidStopLoadingIcons() {
4205   int icon_types = WebIconURL::TypeFavicon;
4206   if (TouchEnabled())
4207     icon_types |= WebIconURL::TypeTouchPrecomposed | WebIconURL::TypeTouch;
4208
4209   // Favicons matter only for the top-level frame. If it is a WebRemoteFrame,
4210   // just return early.
4211   if (webview()->mainFrame()->isWebRemoteFrame())
4212     return;
4213
4214   WebVector<WebIconURL> icon_urls =
4215       webview()->mainFrame()->iconURLs(icon_types);
4216
4217   std::vector<FaviconURL> urls;
4218   for (size_t i = 0; i < icon_urls.size(); i++) {
4219     WebURL url = icon_urls[i].iconURL();
4220     std::vector<gfx::Size> sizes;
4221     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
4222     if (!url.isEmpty())
4223       urls.push_back(
4224           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
4225   }
4226   SendUpdateFaviconURL(urls);
4227 }
4228
4229 }  // namespace content