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/path_service.h"
  26 #include "base/process/kill.h"
  27 #include "base/process/process.h"
  28 #include "base/strings/string_number_conversions.h"
  29 #include "base/strings/string_piece.h"
  30 #include "base/strings/string_split.h"
  31 #include "base/strings/string_util.h"
  32 #include "base/strings/sys_string_conversions.h"
  33 #include "base/strings/utf_string_conversions.h"
  34 #include "base/time/time.h"
  35 #include "cc/base/switches.h"
  36 #include "content/child/appcache/appcache_dispatcher.h"
  37 #include "content/child/appcache/web_application_cache_host_impl.h"
  38 #include "content/child/child_shared_bitmap_manager.h"
  39 #include "content/child/child_thread.h"
  40 #include "content/child/npapi/webplugin_delegate_impl.h"
  41 #include "content/child/request_extra_data.h"
  42 #include "content/child/webmessageportchannel_impl.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/socket_stream_handle_data.h"
  51 #include "content/common/ssl_status_serialization.h"
  52 #include "content/common/view_messages.h"
  53 #include "content/public/common/bindings_policy.h"
  54 #include "content/public/common/content_client.h"
  55 #include "content/public/common/content_constants.h"
  56 #include "content/public/common/content_switches.h"
  57 #include "content/public/common/drop_data.h"
  58 #include "content/public/common/favicon_url.h"
  59 #include "content/public/common/file_chooser_params.h"
  60 #include "content/public/common/page_zoom.h"
  61 #include "content/public/common/ssl_status.h"
  62 #include "content/public/common/three_d_api_types.h"
  63 #include "content/public/common/url_constants.h"
  64 #include "content/public/common/url_utils.h"
  65 #include "content/public/common/web_preferences.h"
  66 #include "content/public/renderer/content_renderer_client.h"
  67 #include "content/public/renderer/document_state.h"
  68 #include "content/public/renderer/navigation_state.h"
  69 #include "content/public/renderer/render_view_observer.h"
  70 #include "content/public/renderer/render_view_visitor.h"
  71 #include "content/renderer/accessibility/renderer_accessibility.h"
  72 #include "content/renderer/accessibility/renderer_accessibility_complete.h"
  73 #include "content/renderer/accessibility/renderer_accessibility_focus_only.h"
  74 #include "content/renderer/browser_plugin/browser_plugin.h"
  75 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
  76 #include "content/renderer/browser_plugin/browser_plugin_manager_impl.h"
  77 #include "content/renderer/devtools/devtools_agent.h"
  78 #include "content/renderer/disambiguation_popup_helper.h"
  79 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
  80 #include "content/renderer/drop_data_builder.h"
  81 #include "content/renderer/gpu/render_widget_compositor.h"
  82 #include "content/renderer/history_controller.h"
  83 #include "content/renderer/history_serialization.h"
  84 #include "content/renderer/idle_user_detector.h"
  85 #include "content/renderer/ime_event_guard.h"
  86 #include "content/renderer/input/input_handler_manager.h"
  87 #include "content/renderer/internal_document_state_data.h"
  88 #include "content/renderer/media/audio_device_factory.h"
  89 #include "content/renderer/media/video_capture_impl_manager.h"
  90 #include "content/renderer/memory_benchmarking_extension.h"
  91 #include "content/renderer/mhtml_generator.h"
  92 #include "content/renderer/net_info_helper.h"
  93 #include "content/renderer/render_frame_impl.h"
  94 #include "content/renderer/render_frame_proxy.h"
  95 #include "content/renderer/render_process.h"
  96 #include "content/renderer/render_thread_impl.h"
  97 #include "content/renderer/render_view_impl_params.h"
  98 #include "content/renderer/render_view_mouse_lock_dispatcher.h"
  99 #include "content/renderer/render_widget_fullscreen_pepper.h"
 100 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
 101 #include "content/renderer/resizing_mode_selector.h"
 102 #include "content/renderer/savable_resources.h"
 103 #include "content/renderer/skia_benchmarking_extension.h"
 104 #include "content/renderer/speech_recognition_dispatcher.h"
 105 #include "content/renderer/stats_collection_controller.h"
 106 #include "content/renderer/stats_collection_observer.h"
 107 #include "content/renderer/text_input_client_observer.h"
 108 #include "content/renderer/v8_value_converter_impl.h"
 109 #include "content/renderer/web_ui_extension.h"
 110 #include "content/renderer/web_ui_extension_data.h"
 111 #include "content/renderer/web_ui_mojo.h"
 112 #include "content/renderer/websharedworker_proxy.h"
 113 #include "media/audio/audio_output_device.h"
 114 #include "media/base/media_switches.h"
 115 #include "media/filters/audio_renderer_impl.h"
 116 #include "media/filters/gpu_video_accelerator_factories.h"
 117 #include "net/base/data_url.h"
 118 #include "net/base/escape.h"
 119 #include "net/base/net_errors.h"
 120 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 121 #include "net/http/http_util.h"
 122 #include "third_party/WebKit/public/platform/WebCString.h"
 123 #include "third_party/WebKit/public/platform/WebConnectionType.h"
 124 #include "third_party/WebKit/public/platform/WebDragData.h"
 125 #include "third_party/WebKit/public/platform/WebHTTPBody.h"
 126 #include "third_party/WebKit/public/platform/WebImage.h"
 127 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
 128 #include "third_party/WebKit/public/platform/WebPoint.h"
 129 #include "third_party/WebKit/public/platform/WebRect.h"
 130 #include "third_party/WebKit/public/platform/WebSize.h"
 131 #include "third_party/WebKit/public/platform/WebSocketStreamHandle.h"
 132 #include "third_party/WebKit/public/platform/WebStorageQuotaCallbacks.h"
 133 #include "third_party/WebKit/public/platform/WebString.h"
 134 #include "third_party/WebKit/public/platform/WebURL.h"
 135 #include "third_party/WebKit/public/platform/WebURLError.h"
 136 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 137 #include "third_party/WebKit/public/platform/WebURLResponse.h"
 138 #include "third_party/WebKit/public/platform/WebVector.h"
 139 #include "third_party/WebKit/public/web/WebAXObject.h"
 140 #include "third_party/WebKit/public/web/WebColorName.h"
 141 #include "third_party/WebKit/public/web/WebColorSuggestion.h"
 142 #include "third_party/WebKit/public/web/WebDOMEvent.h"
 143 #include "third_party/WebKit/public/web/WebDOMMessageEvent.h"
 144 #include "third_party/WebKit/public/web/WebDataSource.h"
 145 #include "third_party/WebKit/public/web/WebDateTimeChooserCompletion.h"
 146 #include "third_party/WebKit/public/web/WebDateTimeChooserParams.h"
 147 #include "third_party/WebKit/public/web/WebDevToolsAgent.h"
 148 #include "third_party/WebKit/public/web/WebDocument.h"
 149 #include "third_party/WebKit/public/web/WebElement.h"
 150 #include "third_party/WebKit/public/web/WebFileChooserParams.h"
 151 #include "third_party/WebKit/public/web/WebFindOptions.h"
 152 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 153 #include "third_party/WebKit/public/web/WebFormElement.h"
 154 #include "third_party/WebKit/public/web/WebFrame.h"
 155 #include "third_party/WebKit/public/web/WebGlyphCache.h"
 156 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 157 #include "third_party/WebKit/public/web/WebHitTestResult.h"
 158 #include "third_party/WebKit/public/web/WebInputElement.h"
 159 #include "third_party/WebKit/public/web/WebInputEvent.h"
 160 #include "third_party/WebKit/public/web/WebKit.h"
 161 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 162 #include "third_party/WebKit/public/web/WebMediaPlayerAction.h"
 163 #include "third_party/WebKit/public/web/WebNavigationPolicy.h"
 164 #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
 165 #include "third_party/WebKit/public/web/WebNodeList.h"
 166 #include "third_party/WebKit/public/web/WebPageSerializer.h"
 167 #include "third_party/WebKit/public/web/WebPlugin.h"
 168 #include "third_party/WebKit/public/web/WebPluginAction.h"
 169 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 170 #include "third_party/WebKit/public/web/WebPluginDocument.h"
 171 #include "third_party/WebKit/public/web/WebRange.h"
 172 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 173 #include "third_party/WebKit/public/web/WebScriptSource.h"
 174 #include "third_party/WebKit/public/web/WebSearchableFormData.h"
 175 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 176 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 177 #include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
 178 #include "third_party/WebKit/public/web/WebSettings.h"
 179 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 180 #include "third_party/WebKit/public/web/WebView.h"
 181 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 182 #include "third_party/WebKit/public/web/default/WebRenderTheme.h"
 183 #include "third_party/icu/source/common/unicode/uchar.h"
 184 #include "third_party/icu/source/common/unicode/uscript.h"
 185 #include "ui/base/clipboard/clipboard.h"
 186 #include "ui/base/ui_base_switches_util.h"
 187 #include "ui/events/latency_info.h"
 188 #include "ui/gfx/native_widget_types.h"
 189 #include "ui/gfx/point.h"
 190 #include "ui/gfx/rect.h"
 191 #include "ui/gfx/rect_conversions.h"
 192 #include "ui/gfx/size_conversions.h"
 193 #include "ui/shell_dialogs/selected_file_info.h"
 194 #include "v8/include/v8.h"
 195
 196 #if defined(OS_ANDROID)
 197 #include <cpu-features.h>
 198
 199 #include "content/renderer/android/address_detector.h"
 200 #include "content/renderer/android/content_detector.h"
 201 #include "content/renderer/android/email_detector.h"
 202 #include "content/renderer/android/phone_number_detector.h"
 203 #include "net/android/network_library.h"
 204 #include "skia/ext/platform_canvas.h"
 205 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 206 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 207 #include "ui/gfx/rect_f.h"
 208
 209 #elif defined(OS_WIN)
 210 // TODO(port): these files are currently Windows only because they concern:
 211 //   * theming
 212 #include "ui/native_theme/native_theme_win.h"
 213 #elif defined(USE_X11)
 214 #include "ui/native_theme/native_theme.h"
 215 #elif defined(OS_MACOSX)
 216 #include "skia/ext/skia_utils_mac.h"
 217 #endif
 218
 219 #if defined(ENABLE_PLUGINS)
 220 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 221 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 222 #include "content/renderer/pepper/pepper_plugin_registry.h"
 223 #endif
 224
 225 #if defined(ENABLE_WEBRTC)
 226 #include "content/renderer/media/rtc_peer_connection_handler.h"
 227 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 228 #endif
 229
 230 using blink::WebAXObject;
 231 using blink::WebApplicationCacheHost;
 232 using blink::WebApplicationCacheHostClient;
 233 using blink::WebCString;
 234 using blink::WebColor;
 235 using blink::WebColorName;
 236 using blink::WebConsoleMessage;
 237 using blink::WebData;
 238 using blink::WebDataSource;
 239 using blink::WebDocument;
 240 using blink::WebDOMEvent;
 241 using blink::WebDOMMessageEvent;
 242 using blink::WebDragData;
 243 using blink::WebDragOperation;
 244 using blink::WebDragOperationsMask;
 245 using blink::WebElement;
 246 using blink::WebFileChooserCompletion;
 247 using blink::WebFindOptions;
 248 using blink::WebFormControlElement;
 249 using blink::WebFormElement;
 250 using blink::WebFrame;
 251 using blink::WebGestureEvent;
 252 using blink::WebHistoryItem;
 253 using blink::WebHTTPBody;
 254 using blink::WebIconURL;
 255 using blink::WebImage;
 256 using blink::WebInputElement;
 257 using blink::WebInputEvent;
 258 using blink::WebLocalFrame;
 259 using blink::WebMediaPlayerAction;
 260 using blink::WebMouseEvent;
 261 using blink::WebNavigationPolicy;
 262 using blink::WebNavigationType;
 263 using blink::WebNode;
 264 using blink::WebPageSerializer;
 265 using blink::WebPageSerializerClient;
 266 using blink::WebPeerConnection00Handler;
 267 using blink::WebPeerConnection00HandlerClient;
 268 using blink::WebPeerConnectionHandler;
 269 using blink::WebPeerConnectionHandlerClient;
 270 using blink::WebPluginAction;
 271 using blink::WebPluginContainer;
 272 using blink::WebPluginDocument;
 273 using blink::WebPoint;
 274 using blink::WebRange;
 275 using blink::WebRect;
 276 using blink::WebReferrerPolicy;
 277 using blink::WebScriptSource;
 278 using blink::WebSearchableFormData;
 279 using blink::WebSecurityOrigin;
 280 using blink::WebSecurityPolicy;
 281 using blink::WebSerializedScriptValue;
 282 using blink::WebSettings;
 283 using blink::WebSize;
 284 using blink::WebSocketStreamHandle;
 285 using blink::WebStorageNamespace;
 286 using blink::WebStorageQuotaCallbacks;
 287 using blink::WebStorageQuotaError;
 288 using blink::WebStorageQuotaType;
 289 using blink::WebString;
 290 using blink::WebTextAffinity;
 291 using blink::WebTextDirection;
 292 using blink::WebTouchEvent;
 293 using blink::WebURL;
 294 using blink::WebURLError;
 295 using blink::WebURLRequest;
 296 using blink::WebURLResponse;
 297 using blink::WebUserGestureIndicator;
 298 using blink::WebVector;
 299 using blink::WebView;
 300 using blink::WebWidget;
 301 using blink::WebWindowFeatures;
 302 using blink::WebNetworkStateNotifier;
 303 using blink::WebRuntimeFeatures;
 304 using base::Time;
 305 using base::TimeDelta;
 306
 307 #if defined(OS_ANDROID)
 308 using blink::WebContentDetectionResult;
 309 using blink::WebFloatPoint;
 310 using blink::WebFloatRect;
 311 using blink::WebHitTestResult;
 312 #endif
 313
 314 namespace content {
 315
 316 //-----------------------------------------------------------------------------
 317
 318 typedef std::map<blink::WebView*, RenderViewImpl*> ViewMap;
 319 static base::LazyInstance<ViewMap> g_view_map = LAZY_INSTANCE_INITIALIZER;
 320 typedef std::map<int32, RenderViewImpl*> RoutingIDViewMap;
 321 static base::LazyInstance<RoutingIDViewMap> g_routing_id_view_map =
 322     LAZY_INSTANCE_INITIALIZER;
 323
 324 // Time, in seconds, we delay before sending content state changes (such as form
 325 // state and scroll position) to the browser. We delay sending changes to avoid
 326 // spamming the browser.
 327 // To avoid having tab/session restore require sending a message to get the
 328 // current content state during tab closing we use a shorter timeout for the
 329 // foreground renderer. This means there is a small window of time from which
 330 // content state is modified and not sent to session restore, but this is
 331 // better than having to wake up all renderers during shutdown.
 332 const int kDelaySecondsForContentStateSyncHidden = 5;
 333 const int kDelaySecondsForContentStateSync = 1;
 334
 335 #if defined(OS_ANDROID)
 336 // Delay between tapping in content and launching the associated android intent.
 337 // Used to allow users see what has been recognized as content.
 338 const size_t kContentIntentDelayMilliseconds = 700;
 339 #endif
 340
 341 static RenderViewImpl* (*g_create_render_view_impl)(RenderViewImplParams*) =
 342     NULL;
 343
 344 // static
 345 bool RenderViewImpl::IsReload(const FrameMsg_Navigate_Params& params) {
 346   return
 347       params.navigation_type == FrameMsg_Navigate_Type::RELOAD ||
 348       params.navigation_type == FrameMsg_Navigate_Type::RELOAD_IGNORING_CACHE ||
 349       params.navigation_type ==
 350           FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL;
 351 }
 352
 353 // static
 354 Referrer RenderViewImpl::GetReferrerFromRequest(
 355     WebFrame* frame,
 356     const WebURLRequest& request) {
 357   return Referrer(GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
 358                   request.referrerPolicy());
 359 }
 360
 361 // static
 362 WindowOpenDisposition RenderViewImpl::NavigationPolicyToDisposition(
 363     WebNavigationPolicy policy) {
 364   switch (policy) {
 365     case blink::WebNavigationPolicyIgnore:
 366       return IGNORE_ACTION;
 367     case blink::WebNavigationPolicyDownload:
 368       return SAVE_TO_DISK;
 369     case blink::WebNavigationPolicyCurrentTab:
 370       return CURRENT_TAB;
 371     case blink::WebNavigationPolicyNewBackgroundTab:
 372       return NEW_BACKGROUND_TAB;
 373     case blink::WebNavigationPolicyNewForegroundTab:
 374       return NEW_FOREGROUND_TAB;
 375     case blink::WebNavigationPolicyNewWindow:
 376       return NEW_WINDOW;
 377     case blink::WebNavigationPolicyNewPopup:
 378       return NEW_POPUP;
 379   default:
 380     NOTREACHED() << "Unexpected WebNavigationPolicy";
 381     return IGNORE_ACTION;
 382   }
 383 }
 384
 385 // Returns true if the device scale is high enough that losing subpixel
 386 // antialiasing won't have a noticeable effect on text quality.
 387 static bool DeviceScaleEnsuresTextQuality(float device_scale_factor) {
 388 #if defined(OS_ANDROID)
 389   // On Android, we never have subpixel antialiasing.
 390   return true;
 391 #else
 392   return device_scale_factor > 1.5f;
 393 #endif
 394
 395 }
 396
 397 static bool PreferCompositingToLCDText(float device_scale_factor) {
 398   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 399   if (command_line.HasSwitch(switches::kDisablePreferCompositingToLCDText))
 400     return false;
 401   if (command_line.HasSwitch(switches::kEnablePreferCompositingToLCDText))
 402     return true;
 403   if (RenderThreadImpl::current() &&
 404       !RenderThreadImpl::current()->is_lcd_text_enabled())
 405     return true;
 406   return DeviceScaleEnsuresTextQuality(device_scale_factor);
 407 }
 408
 409 static bool ShouldUseTransitionCompositing(float device_scale_factor) {
 410   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 411
 412   if (command_line.HasSwitch(switches::kDisableCompositingForTransition))
 413     return false;
 414
 415   if (command_line.HasSwitch(switches::kEnableCompositingForTransition))
 416     return true;
 417
 418   // TODO(ajuma): Re-enable this by default for high-DPI once the problem
 419   // of excessive layer promotion caused by overlap has been addressed.
 420   // http://crbug.com/178119.
 421   return false;
 422 }
 423
 424 static FaviconURL::IconType ToFaviconType(blink::WebIconURL::Type type) {
 425   switch (type) {
 426     case blink::WebIconURL::TypeFavicon:
 427       return FaviconURL::FAVICON;
 428     case blink::WebIconURL::TypeTouch:
 429       return FaviconURL::TOUCH_ICON;
 430     case blink::WebIconURL::TypeTouchPrecomposed:
 431       return FaviconURL::TOUCH_PRECOMPOSED_ICON;
 432     case blink::WebIconURL::TypeInvalid:
 433       return FaviconURL::INVALID_ICON;
 434   }
 435   return FaviconURL::INVALID_ICON;
 436 }
 437
 438 static void ConvertToFaviconSizes(
 439     const blink::WebVector<blink::WebSize>& web_sizes,
 440     std::vector<gfx::Size>* sizes) {
 441   DCHECK(sizes->empty());
 442   sizes->reserve(web_sizes.size());
 443   for (size_t i = 0; i < web_sizes.size(); ++i)
 444     sizes->push_back(gfx::Size(web_sizes[i]));
 445 }
 446
 447 ///////////////////////////////////////////////////////////////////////////////
 448
 449 struct RenderViewImpl::PendingFileChooser {
 450   PendingFileChooser(const FileChooserParams& p, WebFileChooserCompletion* c)
 451       : params(p),
 452         completion(c) {
 453   }
 454   FileChooserParams params;
 455   WebFileChooserCompletion* completion;  // MAY BE NULL to skip callback.
 456 };
 457
 458 namespace {
 459
 460 class WebWidgetLockTarget : public MouseLockDispatcher::LockTarget {
 461  public:
 462   explicit WebWidgetLockTarget(blink::WebWidget* webwidget)
 463       : webwidget_(webwidget) {}
 464
 465   virtual void OnLockMouseACK(bool succeeded) OVERRIDE {
 466     if (succeeded)
 467       webwidget_->didAcquirePointerLock();
 468     else
 469       webwidget_->didNotAcquirePointerLock();
 470   }
 471
 472   virtual void OnMouseLockLost() OVERRIDE {
 473     webwidget_->didLosePointerLock();
 474   }
 475
 476   virtual bool HandleMouseLockedInputEvent(
 477       const blink::WebMouseEvent &event) OVERRIDE {
 478     // The WebWidget handles mouse lock in WebKit's handleInputEvent().
 479     return false;
 480   }
 481
 482  private:
 483   blink::WebWidget* webwidget_;
 484 };
 485
 486 bool TouchEnabled() {
 487 // Based on the definition of chrome::kEnableTouchIcon.
 488 #if defined(OS_ANDROID)
 489   return true;
 490 #else
 491   return false;
 492 #endif
 493 }
 494
 495 WebDragData DropDataToWebDragData(const DropData& drop_data) {
 496   std::vector<WebDragData::Item> item_list;
 497
 498   // These fields are currently unused when dragging into WebKit.
 499   DCHECK(drop_data.download_metadata.empty());
 500   DCHECK(drop_data.file_contents.empty());
 501   DCHECK(drop_data.file_description_filename.empty());
 502
 503   if (!drop_data.text.is_null()) {
 504     WebDragData::Item item;
 505     item.storageType = WebDragData::Item::StorageTypeString;
 506     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeText);
 507     item.stringData = drop_data.text.string();
 508     item_list.push_back(item);
 509   }
 510
 511   // TODO(dcheng): Do we need to distinguish between null and empty URLs? Is it
 512   // meaningful to write an empty URL to the clipboard?
 513   if (!drop_data.url.is_empty()) {
 514     WebDragData::Item item;
 515     item.storageType = WebDragData::Item::StorageTypeString;
 516     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeURIList);
 517     item.stringData = WebString::fromUTF8(drop_data.url.spec());
 518     item.title = drop_data.url_title;
 519     item_list.push_back(item);
 520   }
 521
 522   if (!drop_data.html.is_null()) {
 523     WebDragData::Item item;
 524     item.storageType = WebDragData::Item::StorageTypeString;
 525     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeHTML);
 526     item.stringData = drop_data.html.string();
 527     item.baseURL = drop_data.html_base_url;
 528     item_list.push_back(item);
 529   }
 530
 531   for (std::vector<ui::FileInfo>::const_iterator it =
 532            drop_data.filenames.begin();
 533        it != drop_data.filenames.end();
 534        ++it) {
 535     WebDragData::Item item;
 536     item.storageType = WebDragData::Item::StorageTypeFilename;
 537     item.filenameData = it->path.AsUTF16Unsafe();
 538     item.displayNameData = it->display_name.AsUTF16Unsafe();
 539     item_list.push_back(item);
 540   }
 541
 542   for (std::vector<DropData::FileSystemFileInfo>::const_iterator it =
 543            drop_data.file_system_files.begin();
 544        it != drop_data.file_system_files.end();
 545        ++it) {
 546     WebDragData::Item item;
 547     item.storageType = WebDragData::Item::StorageTypeFileSystemFile;
 548     item.fileSystemURL = it->url;
 549     item.fileSystemFileSize = it->size;
 550     item_list.push_back(item);
 551   }
 552
 553   for (std::map<base::string16, base::string16>::const_iterator it =
 554            drop_data.custom_data.begin();
 555        it != drop_data.custom_data.end();
 556        ++it) {
 557     WebDragData::Item item;
 558     item.storageType = WebDragData::Item::StorageTypeString;
 559     item.stringType = it->first;
 560     item.stringData = it->second;
 561     item_list.push_back(item);
 562   }
 563
 564   WebDragData result;
 565   result.initialize();
 566   result.setItems(item_list);
 567   result.setFilesystemId(drop_data.filesystem_id);
 568   return result;
 569 }
 570
 571 typedef void (*SetFontFamilyWrapper)(blink::WebSettings*,
 572                                      const base::string16&,
 573                                      UScriptCode);
 574
 575 void SetStandardFontFamilyWrapper(WebSettings* settings,
 576                                   const base::string16& font,
 577                                   UScriptCode script) {
 578   settings->setStandardFontFamily(font, script);
 579 }
 580
 581 void SetFixedFontFamilyWrapper(WebSettings* settings,
 582                                const base::string16& font,
 583                                UScriptCode script) {
 584   settings->setFixedFontFamily(font, script);
 585 }
 586
 587 void SetSerifFontFamilyWrapper(WebSettings* settings,
 588                                const base::string16& font,
 589                                UScriptCode script) {
 590   settings->setSerifFontFamily(font, script);
 591 }
 592
 593 void SetSansSerifFontFamilyWrapper(WebSettings* settings,
 594                                    const base::string16& font,
 595                                    UScriptCode script) {
 596   settings->setSansSerifFontFamily(font, script);
 597 }
 598
 599 void SetCursiveFontFamilyWrapper(WebSettings* settings,
 600                                  const base::string16& font,
 601                                  UScriptCode script) {
 602   settings->setCursiveFontFamily(font, script);
 603 }
 604
 605 void SetFantasyFontFamilyWrapper(WebSettings* settings,
 606                                  const base::string16& font,
 607                                  UScriptCode script) {
 608   settings->setFantasyFontFamily(font, script);
 609 }
 610
 611 void SetPictographFontFamilyWrapper(WebSettings* settings,
 612                                     const base::string16& font,
 613                                     UScriptCode script) {
 614   settings->setPictographFontFamily(font, script);
 615 }
 616
 617 // If |scriptCode| is a member of a family of "similar" script codes, returns
 618 // the script code in that family that is used by WebKit for font selection
 619 // purposes.  For example, USCRIPT_KATAKANA_OR_HIRAGANA and USCRIPT_JAPANESE are
 620 // considered equivalent for the purposes of font selection.  WebKit uses the
 621 // script code USCRIPT_KATAKANA_OR_HIRAGANA.  So, if |scriptCode| is
 622 // USCRIPT_JAPANESE, the function returns USCRIPT_KATAKANA_OR_HIRAGANA.  WebKit
 623 // uses different scripts than the ones in Chrome pref names because the version
 624 // of ICU included on certain ports does not have some of the newer scripts.  If
 625 // |scriptCode| is not a member of such a family, returns |scriptCode|.
 626 UScriptCode GetScriptForWebSettings(UScriptCode scriptCode) {
 627   switch (scriptCode) {
 628     case USCRIPT_HIRAGANA:
 629     case USCRIPT_KATAKANA:
 630     case USCRIPT_JAPANESE:
 631       return USCRIPT_KATAKANA_OR_HIRAGANA;
 632     case USCRIPT_KOREAN:
 633       return USCRIPT_HANGUL;
 634     default:
 635       return scriptCode;
 636   }
 637 }
 638
 639 void ApplyFontsFromMap(const ScriptFontFamilyMap& map,
 640                        SetFontFamilyWrapper setter,
 641                        WebSettings* settings) {
 642   for (ScriptFontFamilyMap::const_iterator it = map.begin(); it != map.end();
 643        ++it) {
 644     int32 script = u_getPropertyValueEnum(UCHAR_SCRIPT, (it->first).c_str());
 645     if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
 646       UScriptCode code = static_cast<UScriptCode>(script);
 647       (*setter)(settings, it->second, GetScriptForWebSettings(code));
 648     }
 649   }
 650 }
 651
 652 }  // namespace
 653
 654 RenderViewImpl::RenderViewImpl(RenderViewImplParams* params)
 655     : RenderWidget(blink::WebPopupTypeNone,
 656                    params->screen_info,
 657                    params->swapped_out,
 658                    params->hidden,
 659                    params->never_visible),
 660       webkit_preferences_(params->webkit_prefs),
 661       send_content_state_immediately_(false),
 662       enabled_bindings_(0),
 663       send_preferred_size_changes_(false),
 664       navigation_gesture_(NavigationGestureUnknown),
 665       opened_by_user_gesture_(true),
 666       opener_suppressed_(false),
 667       suppress_dialogs_until_swap_out_(false),
 668       page_id_(-1),
 669       last_page_id_sent_to_browser_(-1),
 670       next_page_id_(params->next_page_id),
 671       history_list_offset_(-1),
 672       history_list_length_(0),
 673       frames_in_progress_(0),
 674       target_url_status_(TARGET_NONE),
 675       uses_temporary_zoom_level_(false),
 676 #if defined(OS_ANDROID)
 677       top_controls_constraints_(cc::BOTH),
 678 #endif
 679       has_scrolled_focused_editable_node_into_rect_(false),
 680       speech_recognition_dispatcher_(NULL),
 681       browser_plugin_manager_(NULL),
 682       devtools_agent_(NULL),
 683       mouse_lock_dispatcher_(NULL),
 684 #if defined(OS_ANDROID)
 685       expected_content_intent_id_(0),
 686 #endif
 687 #if defined(OS_WIN)
 688       focused_plugin_id_(-1),
 689 #endif
 690 #if defined(ENABLE_PLUGINS)
 691       plugin_find_handler_(NULL),
 692       focused_pepper_plugin_(NULL),
 693       pepper_last_mouse_event_target_(NULL),
 694 #endif
 695       enumeration_completion_id_(0),
 696       session_storage_namespace_id_(params->session_storage_namespace_id),
 697       next_snapshot_id_(0) {
 698 }
 699
 700 void RenderViewImpl::Initialize(RenderViewImplParams* params) {
 701   routing_id_ = params->routing_id;
 702   surface_id_ = params->surface_id;
 703   if (params->opener_id != MSG_ROUTING_NONE && params->is_renderer_created)
 704     opener_id_ = params->opener_id;
 705
 706   // Ensure we start with a valid next_page_id_ from the browser.
 707   DCHECK_GE(next_page_id_, 0);
 708
 709   main_render_frame_.reset(RenderFrameImpl::Create(
 710       this, params->main_frame_routing_id));
 711   // The main frame WebLocalFrame object is closed by
 712   // RenderFrameImpl::frameDetached().
 713   WebLocalFrame* web_frame = WebLocalFrame::create(main_render_frame_.get());
 714   main_render_frame_->SetWebFrame(web_frame);
 715
 716   webwidget_ = WebView::create(this);
 717   webwidget_mouse_lock_target_.reset(new WebWidgetLockTarget(webwidget_));
 718
 719   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 720
 721   if (command_line.HasSwitch(switches::kStatsCollectionController))
 722     stats_collection_observer_.reset(new StatsCollectionObserver(this));
 723
 724 #if defined(OS_ANDROID)
 725   const std::string region_code =
 726       command_line.HasSwitch(switches::kNetworkCountryIso)
 727           ? command_line.GetSwitchValueASCII(switches::kNetworkCountryIso)
 728           : net::android::GetTelephonyNetworkOperator();
 729   content_detectors_.push_back(linked_ptr<ContentDetector>(
 730       new AddressDetector()));
 731   content_detectors_.push_back(linked_ptr<ContentDetector>(
 732       new PhoneNumberDetector(region_code)));
 733   content_detectors_.push_back(linked_ptr<ContentDetector>(
 734       new EmailDetector()));
 735 #endif
 736
 737   RenderThread::Get()->AddRoute(routing_id_, this);
 738   // Take a reference on behalf of the RenderThread.  This will be balanced
 739   // when we receive ViewMsg_ClosePage.
 740   AddRef();
 741   if (RenderThreadImpl::current()) {
 742     RenderThreadImpl::current()->WidgetCreated();
 743     if (is_hidden_)
 744       RenderThreadImpl::current()->WidgetHidden();
 745   }
 746
 747   // If this is a popup, we must wait for the CreatingNew_ACK message before
 748   // completing initialization.  Otherwise, we can finish it now.
 749   if (opener_id_ == MSG_ROUTING_NONE) {
 750     did_show_ = true;
 751     CompleteInit();
 752   }
 753
 754   g_view_map.Get().insert(std::make_pair(webview(), this));
 755   g_routing_id_view_map.Get().insert(std::make_pair(routing_id_, this));
 756   webview()->setDeviceScaleFactor(device_scale_factor_);
 757   webview()->settings()->setPreferCompositingToLCDTextEnabled(
 758       PreferCompositingToLCDText(device_scale_factor_));
 759   webview()->settings()->setAcceleratedCompositingForTransitionEnabled(
 760       ShouldUseTransitionCompositing(device_scale_factor_));
 761
 762   ApplyWebPreferences(webkit_preferences_, webview());
 763
 764   webview()->settings()->setAllowConnectingInsecureWebSocket(
 765       command_line.HasSwitch(switches::kAllowInsecureWebSocketFromHttpsOrigin));
 766
 767   RenderFrameProxy* proxy = NULL;
 768   if (params->proxy_routing_id != MSG_ROUTING_NONE) {
 769     CHECK(params->swapped_out);
 770     proxy = RenderFrameProxy::CreateProxyToReplaceFrame(
 771         main_render_frame_.get(), params->proxy_routing_id);
 772     main_render_frame_->set_render_frame_proxy(proxy);
 773   }
 774
 775   // In --site-per-process, just use the WebRemoteFrame as the main frame.
 776   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSitePerProcess) &&
 777       proxy) {
 778     webview()->setMainFrame(proxy->web_frame());
 779   } else {
 780     webview()->setMainFrame(main_render_frame_->GetWebFrame());
 781   }
 782   main_render_frame_->Initialize();
 783
 784   if (switches::IsTouchDragDropEnabled())
 785     webview()->settings()->setTouchDragDropEnabled(true);
 786
 787   if (switches::IsTouchEditingEnabled())
 788     webview()->settings()->setTouchEditingEnabled(true);
 789
 790   if (!params->frame_name.empty())
 791     webview()->mainFrame()->setName(params->frame_name);
 792
 793   // TODO(davidben): Move this state from Blink into content.
 794   if (params->window_was_created_with_opener)
 795     webview()->setOpenedByDOM();
 796
 797   OnSetRendererPrefs(params->renderer_prefs);
 798
 799   new MHTMLGenerator(this);
 800 #if defined(OS_MACOSX)
 801   new TextInputClientObserver(this);
 802 #endif  // defined(OS_MACOSX)
 803
 804   // The next group of objects all implement RenderViewObserver, so are deleted
 805   // along with the RenderView automatically.
 806   devtools_agent_ = new DevToolsAgent(this);
 807   if (RenderWidgetCompositor* rwc = compositor()) {
 808     webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
 809   }
 810   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
 811
 812   history_controller_.reset(new HistoryController(this));
 813
 814   new IdleUserDetector(this);
 815
 816   if (command_line.HasSwitch(switches::kDomAutomationController))
 817     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
 818   if (command_line.HasSwitch(switches::kStatsCollectionController))
 819     enabled_bindings_ |= BINDINGS_POLICY_STATS_COLLECTION;
 820
 821   ProcessViewLayoutFlags(command_line);
 822
 823   GetContentClient()->renderer()->RenderViewCreated(this);
 824
 825   // If we have an opener_id but we weren't created by a renderer, then
 826   // it's the browser asking us to set our opener to another RenderView.
 827   if (params->opener_id != MSG_ROUTING_NONE && !params->is_renderer_created) {
 828     RenderViewImpl* opener_view = FromRoutingID(params->opener_id);
 829     if (opener_view)
 830       webview()->mainFrame()->setOpener(opener_view->webview()->mainFrame());
 831   }
 832
 833   // If we are initially swapped out, navigate to kSwappedOutURL.
 834   // This ensures we are in a unique origin that others cannot script.
 835   if (is_swapped_out_ && webview()->mainFrame()->isWebLocalFrame())
 836     NavigateToSwappedOutURL(webview()->mainFrame());
 837 }
 838
 839 RenderViewImpl::~RenderViewImpl() {
 840   for (BitmapMap::iterator it = disambiguation_bitmaps_.begin();
 841        it != disambiguation_bitmaps_.end();
 842        ++it)
 843     delete it->second;
 844   history_page_ids_.clear();
 845
 846   base::debug::TraceLog::GetInstance()->RemoveProcessLabel(routing_id_);
 847
 848   // If file chooser is still waiting for answer, dispatch empty answer.
 849   while (!file_chooser_completions_.empty()) {
 850     if (file_chooser_completions_.front()->completion) {
 851       file_chooser_completions_.front()->completion->didChooseFile(
 852           WebVector<WebString>());
 853     }
 854     file_chooser_completions_.pop_front();
 855   }
 856
 857 #if defined(OS_ANDROID)
 858   // The date/time picker client is both a scoped_ptr member of this class and
 859   // a RenderViewObserver. Reset it to prevent double deletion.
 860   date_time_picker_client_.reset();
 861 #endif
 862
 863 #ifndef NDEBUG
 864   // Make sure we are no longer referenced by the ViewMap or RoutingIDViewMap.
 865   ViewMap* views = g_view_map.Pointer();
 866   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
 867     DCHECK_NE(this, it->second) << "Failed to call Close?";
 868   RoutingIDViewMap* routing_id_views = g_routing_id_view_map.Pointer();
 869   for (RoutingIDViewMap::iterator it = routing_id_views->begin();
 870        it != routing_id_views->end(); ++it)
 871     DCHECK_NE(this, it->second) << "Failed to call Close?";
 872 #endif
 873
 874   FOR_EACH_OBSERVER(RenderViewObserver, observers_, RenderViewGone());
 875   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnDestruct());
 876 }
 877
 878 /*static*/
 879 RenderViewImpl* RenderViewImpl::FromWebView(WebView* webview) {
 880   ViewMap* views = g_view_map.Pointer();
 881   ViewMap::iterator it = views->find(webview);
 882   return it == views->end() ? NULL : it->second;
 883 }
 884
 885 /*static*/
 886 RenderView* RenderView::FromWebView(blink::WebView* webview) {
 887   return RenderViewImpl::FromWebView(webview);
 888 }
 889
 890 /*static*/
 891 RenderViewImpl* RenderViewImpl::FromRoutingID(int32 routing_id) {
 892   RoutingIDViewMap* views = g_routing_id_view_map.Pointer();
 893   RoutingIDViewMap::iterator it = views->find(routing_id);
 894   return it == views->end() ? NULL : it->second;
 895 }
 896
 897 /*static*/
 898 RenderView* RenderView::FromRoutingID(int routing_id) {
 899   return RenderViewImpl::FromRoutingID(routing_id);
 900 }
 901
 902 /* static */
 903 size_t RenderViewImpl::GetRenderViewCount() {
 904   return g_view_map.Get().size();
 905 }
 906
 907 /*static*/
 908 void RenderView::ForEach(RenderViewVisitor* visitor) {
 909   ViewMap* views = g_view_map.Pointer();
 910   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it) {
 911     if (!visitor->Visit(it->second))
 912       return;
 913   }
 914 }
 915
 916 /*static*/
 917 void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
 918                                      WebView* web_view) {
 919   WebSettings* settings = web_view->settings();
 920   ApplyFontsFromMap(prefs.standard_font_family_map,
 921                     SetStandardFontFamilyWrapper, settings);
 922   ApplyFontsFromMap(prefs.fixed_font_family_map,
 923                     SetFixedFontFamilyWrapper, settings);
 924   ApplyFontsFromMap(prefs.serif_font_family_map,
 925                     SetSerifFontFamilyWrapper, settings);
 926   ApplyFontsFromMap(prefs.sans_serif_font_family_map,
 927                     SetSansSerifFontFamilyWrapper, settings);
 928   ApplyFontsFromMap(prefs.cursive_font_family_map,
 929                     SetCursiveFontFamilyWrapper, settings);
 930   ApplyFontsFromMap(prefs.fantasy_font_family_map,
 931                     SetFantasyFontFamilyWrapper, settings);
 932   ApplyFontsFromMap(prefs.pictograph_font_family_map,
 933                     SetPictographFontFamilyWrapper, settings);
 934   settings->setDefaultFontSize(prefs.default_font_size);
 935   settings->setDefaultFixedFontSize(prefs.default_fixed_font_size);
 936   settings->setMinimumFontSize(prefs.minimum_font_size);
 937   settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
 938   settings->setDefaultTextEncodingName(
 939       base::ASCIIToUTF16(prefs.default_encoding));
 940   settings->setJavaScriptEnabled(prefs.javascript_enabled);
 941   settings->setWebSecurityEnabled(prefs.web_security_enabled);
 942   settings->setJavaScriptCanOpenWindowsAutomatically(
 943       prefs.javascript_can_open_windows_automatically);
 944   settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
 945   settings->setImagesEnabled(prefs.images_enabled);
 946   settings->setPluginsEnabled(prefs.plugins_enabled);
 947   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
 948   settings->setShrinksStandaloneImagesToFit(
 949       prefs.shrinks_standalone_images_to_fit);
 950   settings->setUsesEncodingDetector(prefs.uses_universal_detector);
 951   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
 952   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
 953   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
 954   settings->setJavaScriptCanAccessClipboard(
 955       prefs.javascript_can_access_clipboard);
 956   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
 957   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
 958   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
 959   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
 960   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
 961   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
 962   settings->setOfflineWebApplicationCacheEnabled(
 963       prefs.application_cache_enabled);
 964   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
 965   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
 966   settings->setCookieEnabled(prefs.cookie_enabled);
 967   settings->setNavigateOnDragDrop(prefs.navigate_on_drag_drop);
 968
 969   settings->setJavaEnabled(prefs.java_enabled);
 970
 971   // By default, allow_universal_access_from_file_urls is set to false and thus
 972   // we mitigate attacks from local HTML files by not granting file:// URLs
 973   // universal access. Only test shell will enable this.
 974   settings->setAllowUniversalAccessFromFileURLs(
 975       prefs.allow_universal_access_from_file_urls);
 976   settings->setAllowFileAccessFromFileURLs(
 977       prefs.allow_file_access_from_file_urls);
 978
 979   // Enable the web audio API if requested on the command line.
 980   settings->setWebAudioEnabled(prefs.webaudio_enabled);
 981
 982   // Enable experimental WebGL support if requested on command line
 983   // and support is compiled in.
 984   settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled);
 985
 986   // Disable GL multisampling if requested on command line.
 987   settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled);
 988
 989   // Enable WebGL errors to the JS console if requested.
 990   settings->setWebGLErrorsToConsoleEnabled(
 991       prefs.webgl_errors_to_console_enabled);
 992
 993   // Uses the mock theme engine for scrollbars.
 994   settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled);
 995
 996   settings->setLayerSquashingEnabled(prefs.layer_squashing_enabled);
 997
 998   // Enable gpu-accelerated 2d canvas if requested on the command line.
 999   settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled);
1000
1001   settings->setMinimumAccelerated2dCanvasSize(
1002       prefs.minimum_accelerated_2d_canvas_size);
1003
1004   // Disable antialiasing for 2d canvas if requested on the command line.
1005   settings->setAntialiased2dCanvasEnabled(
1006       !prefs.antialiased_2d_canvas_disabled);
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 deferred filter rendering if requested on the command line.
1014   settings->setDeferredFiltersEnabled(prefs.deferred_filters_enabled);
1015
1016   // Enable container culling if requested on the command line.
1017   settings->setContainerCullingEnabled(prefs.container_culling_enabled);
1018
1019   settings->setAsynchronousSpellCheckingEnabled(
1020       prefs.asynchronous_spell_checking_enabled);
1021   settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled);
1022
1023   // Tabs to link is not part of the settings. WebCore calls
1024   // ChromeClient::tabsToLinks which is part of the glue code.
1025   web_view->setTabsToLinks(prefs.tabs_to_links);
1026
1027   settings->setAllowDisplayOfInsecureContent(
1028       prefs.allow_displaying_insecure_content);
1029   settings->setAllowRunningOfInsecureContent(
1030       prefs.allow_running_insecure_content);
1031   settings->setPasswordEchoEnabled(prefs.password_echo_enabled);
1032   settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds);
1033   settings->setShouldClearDocumentBackground(
1034       prefs.should_clear_document_background);
1035   settings->setEnableScrollAnimator(prefs.enable_scroll_animator);
1036
1037   settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled);
1038
1039   WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
1040   settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
1041   settings->setDeviceSupportsTouch(prefs.device_supports_touch);
1042   settings->setDeviceSupportsMouse(prefs.device_supports_mouse);
1043   settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled);
1044
1045   settings->setDeferredImageDecodingEnabled(
1046       prefs.deferred_image_decoding_enabled);
1047   settings->setShouldRespectImageOrientation(
1048       prefs.should_respect_image_orientation);
1049
1050   settings->setUnsafePluginPastingEnabled(false);
1051   settings->setEditingBehavior(
1052       static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior));
1053
1054   settings->setSupportsMultipleWindows(prefs.supports_multiple_windows);
1055
1056   settings->setViewportEnabled(prefs.viewport_enabled);
1057   settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale);
1058   settings->setViewportMetaEnabled(prefs.viewport_meta_enabled);
1059   settings->setMainFrameResizesAreOrientationChanges(
1060       prefs.main_frame_resizes_are_orientation_changes);
1061
1062   settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled);
1063
1064   settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
1065
1066   settings->setSelectionIncludesAltImageText(true);
1067
1068   settings->setV8CacheOptions(
1069       static_cast<WebSettings::V8CacheOptions>(prefs.v8_cache_options));
1070
1071 #if defined(OS_ANDROID)
1072   settings->setAllowCustomScrollbarInMainFrame(false);
1073   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
1074   settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor);
1075   settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
1076   settings->setDisallowFullscreenForNonMediaElements(
1077       prefs.disallow_fullscreen_for_non_media_elements);
1078   settings->setFullscreenSupported(prefs.fullscreen_supported);
1079   web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom);
1080   settings->setAutoZoomFocusedNodeToLegibleScale(true);
1081   settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled);
1082   settings->setMediaControlsOverlayPlayButtonEnabled(true);
1083   settings->setMediaPlaybackRequiresUserGesture(
1084       prefs.user_gesture_required_for_media_playback);
1085   settings->setDefaultVideoPosterURL(
1086         base::ASCIIToUTF16(prefs.default_video_poster_url.spec()));
1087   settings->setSupportDeprecatedTargetDensityDPI(
1088       prefs.support_deprecated_target_density_dpi);
1089   settings->setUseLegacyBackgroundSizeShorthandBehavior(
1090       prefs.use_legacy_background_size_shorthand_behavior);
1091   settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk);
1092   settings->setUseWideViewport(prefs.use_wide_viewport);
1093   settings->setForceZeroLayoutHeight(prefs.force_zero_layout_height);
1094   settings->setViewportMetaLayoutSizeQuirk(
1095       prefs.viewport_meta_layout_size_quirk);
1096   settings->setViewportMetaMergeContentQuirk(
1097       prefs.viewport_meta_merge_content_quirk);
1098   settings->setViewportMetaNonUserScalableQuirk(
1099       prefs.viewport_meta_non_user_scalable_quirk);
1100   settings->setViewportMetaZeroValuesQuirk(
1101       prefs.viewport_meta_zero_values_quirk);
1102   settings->setClobberUserAgentInitialScaleQuirk(
1103       prefs.clobber_user_agent_initial_scale_quirk);
1104   settings->setIgnoreMainFrameOverflowHiddenQuirk(
1105       prefs.ignore_main_frame_overflow_hidden_quirk);
1106   settings->setReportScreenSizeInPhysicalPixelsQuirk(
1107       prefs.report_screen_size_in_physical_pixels_quirk);
1108   settings->setMainFrameClipsContent(false);
1109   settings->setShrinksStandaloneImagesToFit(false);
1110   settings->setShrinksViewportContentToFit(true);
1111 #endif
1112
1113   WebNetworkStateNotifier::setOnLine(prefs.is_online);
1114   WebNetworkStateNotifier::setWebConnectionType(
1115       NetConnectionTypeToWebConnectionType(prefs.connection_type));
1116   settings->setPinchVirtualViewportEnabled(
1117       prefs.pinch_virtual_viewport_enabled);
1118
1119   settings->setPinchOverlayScrollbarThickness(
1120       prefs.pinch_overlay_scrollbar_thickness);
1121   settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars);
1122 }
1123
1124 /*static*/
1125 RenderViewImpl* RenderViewImpl::Create(
1126     int32 opener_id,
1127     bool window_was_created_with_opener,
1128     const RendererPreferences& renderer_prefs,
1129     const WebPreferences& webkit_prefs,
1130     int32 routing_id,
1131     int32 main_frame_routing_id,
1132     int32 surface_id,
1133     int64 session_storage_namespace_id,
1134     const base::string16& frame_name,
1135     bool is_renderer_created,
1136     bool swapped_out,
1137     int32 proxy_routing_id,
1138     bool hidden,
1139     bool never_visible,
1140     int32 next_page_id,
1141     const blink::WebScreenInfo& screen_info) {
1142   DCHECK(routing_id != MSG_ROUTING_NONE);
1143   RenderViewImplParams params(opener_id,
1144                               window_was_created_with_opener,
1145                               renderer_prefs,
1146                               webkit_prefs,
1147                               routing_id,
1148                               main_frame_routing_id,
1149                               surface_id,
1150                               session_storage_namespace_id,
1151                               frame_name,
1152                               is_renderer_created,
1153                               swapped_out,
1154                               proxy_routing_id,
1155                               hidden,
1156                               never_visible,
1157                               next_page_id,
1158                               screen_info);
1159   RenderViewImpl* render_view = NULL;
1160   if (g_create_render_view_impl)
1161     render_view = g_create_render_view_impl(&params);
1162   else
1163     render_view = new RenderViewImpl(&params);
1164
1165   render_view->Initialize(&params);
1166   return render_view;
1167 }
1168
1169 // static
1170 void RenderViewImpl::InstallCreateHook(
1171     RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*)) {
1172   CHECK(!g_create_render_view_impl);
1173   g_create_render_view_impl = create_render_view_impl;
1174 }
1175
1176 void RenderViewImpl::AddObserver(RenderViewObserver* observer) {
1177   observers_.AddObserver(observer);
1178 }
1179
1180 void RenderViewImpl::RemoveObserver(RenderViewObserver* observer) {
1181   observer->RenderViewGone();
1182   observers_.RemoveObserver(observer);
1183 }
1184
1185 blink::WebView* RenderViewImpl::webview() const {
1186   return static_cast<blink::WebView*>(webwidget());
1187 }
1188
1189 #if defined(ENABLE_PLUGINS)
1190 void RenderViewImpl::PepperInstanceCreated(
1191     PepperPluginInstanceImpl* instance) {
1192   active_pepper_instances_.insert(instance);
1193 }
1194
1195 void RenderViewImpl::PepperInstanceDeleted(
1196     PepperPluginInstanceImpl* instance) {
1197   active_pepper_instances_.erase(instance);
1198
1199   if (pepper_last_mouse_event_target_ == instance)
1200     pepper_last_mouse_event_target_ = NULL;
1201   if (focused_pepper_plugin_ == instance)
1202     PepperFocusChanged(instance, false);
1203 }
1204
1205 void RenderViewImpl::PepperFocusChanged(PepperPluginInstanceImpl* instance,
1206                                         bool focused) {
1207   if (focused)
1208     focused_pepper_plugin_ = instance;
1209   else if (focused_pepper_plugin_ == instance)
1210     focused_pepper_plugin_ = NULL;
1211
1212   UpdateTextInputState(NO_SHOW_IME, FROM_NON_IME);
1213   UpdateSelectionBounds();
1214 }
1215
1216 void RenderViewImpl::RegisterPluginDelegate(WebPluginDelegateProxy* delegate) {
1217   plugin_delegates_.insert(delegate);
1218   // If the renderer is visible, set initial visibility and focus state.
1219   if (!is_hidden()) {
1220 #if defined(OS_MACOSX)
1221     delegate->SetContainerVisibility(true);
1222     if (webview() && webview()->isActive())
1223       delegate->SetWindowFocus(true);
1224 #endif
1225   }
1226   // Plugins start assuming the content has focus (so that they work in
1227   // environments where RenderView isn't hosting them), so we always have to
1228   // set the initial state. See webplugin_delegate_impl.h for details.
1229   delegate->SetContentAreaFocus(has_focus());
1230 }
1231
1232 void RenderViewImpl::UnregisterPluginDelegate(
1233     WebPluginDelegateProxy* delegate) {
1234   plugin_delegates_.erase(delegate);
1235 }
1236
1237 #if defined(OS_WIN)
1238 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1239   if (focused)
1240     focused_plugin_id_ = plugin_id;
1241   else
1242     focused_plugin_id_ = -1;
1243 }
1244 #endif
1245
1246 #if defined(OS_MACOSX)
1247 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1248   Send(new ViewHostMsg_PluginFocusChanged(routing_id(), focused, plugin_id));
1249 }
1250
1251 void RenderViewImpl::OnGetRenderedText() {
1252   if (!webview())
1253     return;
1254   // Get rendered text from WebLocalFrame.
1255   // TODO: Currently IPC truncates any data that has a
1256   // size > kMaximumMessageSize. May be split the text into smaller chunks and
1257   // send back using multiple IPC. See http://crbug.com/393444.
1258   static const size_t kMaximumMessageSize = 8 * 1024 * 1024;
1259   std::string text = webview()->mainFrame()->contentAsText(
1260       kMaximumMessageSize).utf8();
1261
1262   Send(new ViewMsg_GetRenderedTextCompleted(routing_id(), text));
1263 }
1264
1265 void RenderViewImpl::StartPluginIme() {
1266   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
1267   // This message can be sent during event-handling, and needs to be delivered
1268   // within that context.
1269   msg->set_unblock(true);
1270   Send(msg);
1271 }
1272 #endif  // defined(OS_MACOSX)
1273
1274 #endif  // ENABLE_PLUGINS
1275
1276 void RenderViewImpl::TransferActiveWheelFlingAnimation(
1277     const blink::WebActiveWheelFlingParameters& params) {
1278   if (webview())
1279     webview()->transferActiveWheelFlingAnimation(params);
1280 }
1281
1282 bool RenderViewImpl::HasIMETextFocus() {
1283   return GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE;
1284 }
1285
1286 bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
1287   WebFrame* main_frame = webview() ? webview()->mainFrame() : NULL;
1288   if (main_frame && main_frame->isWebLocalFrame())
1289     GetContentClient()->SetActiveURL(main_frame->document().url());
1290
1291   ObserverListBase<RenderViewObserver>::Iterator it(observers_);
1292   RenderViewObserver* observer;
1293   while ((observer = it.GetNext()) != NULL)
1294     if (observer->OnMessageReceived(message))
1295       return true;
1296
1297   bool handled = true;
1298   IPC_BEGIN_MESSAGE_MAP(RenderViewImpl, message)
1299     IPC_MESSAGE_HANDLER(InputMsg_ExecuteEditCommand, OnExecuteEditCommand)
1300     IPC_MESSAGE_HANDLER(InputMsg_MoveCaret, OnMoveCaret)
1301     IPC_MESSAGE_HANDLER(InputMsg_ScrollFocusedEditableNodeIntoRect,
1302                         OnScrollFocusedEditableNodeIntoRect)
1303     IPC_MESSAGE_HANDLER(InputMsg_SetEditCommandsForNextKeyEvent,
1304                         OnSetEditCommandsForNextKeyEvent)
1305     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
1306     IPC_MESSAGE_HANDLER(ViewMsg_SaveImageAt, OnSaveImageAt)
1307     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
1308     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
1309     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
1310     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
1311                         OnSetZoomLevelForLoadingURL)
1312     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForView,
1313                         OnSetZoomLevelForView)
1314     IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
1315     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
1316                         OnResetPageEncodingToDefault)
1317     IPC_MESSAGE_HANDLER(ViewMsg_PostMessageEvent, OnPostMessageEvent)
1318     IPC_MESSAGE_HANDLER(DragMsg_TargetDragEnter, OnDragTargetDragEnter)
1319     IPC_MESSAGE_HANDLER(DragMsg_TargetDragOver, OnDragTargetDragOver)
1320     IPC_MESSAGE_HANDLER(DragMsg_TargetDragLeave, OnDragTargetDragLeave)
1321     IPC_MESSAGE_HANDLER(DragMsg_TargetDrop, OnDragTargetDrop)
1322     IPC_MESSAGE_HANDLER(DragMsg_SourceEnded, OnDragSourceEnded)
1323     IPC_MESSAGE_HANDLER(DragMsg_SourceSystemDragEnded,
1324                         OnDragSourceSystemDragEnded)
1325     IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
1326     IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
1327     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
1328     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
1329     IPC_MESSAGE_HANDLER(ViewMsg_EnumerateDirectoryResponse,
1330                         OnEnumerateDirectoryResponse)
1331     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
1332     IPC_MESSAGE_HANDLER(ViewMsg_SuppressDialogsUntilSwapOut,
1333                         OnSuppressDialogsUntilSwapOut)
1334     IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
1335     IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
1336     IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
1337     IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedElement, OnClearFocusedElement)
1338     IPC_MESSAGE_HANDLER(ViewMsg_SetBackgroundOpaque, OnSetBackgroundOpaque)
1339     IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
1340                         OnEnablePreferredSizeChangedMode)
1341     IPC_MESSAGE_HANDLER(ViewMsg_EnableAutoResize, OnEnableAutoResize)
1342     IPC_MESSAGE_HANDLER(ViewMsg_DisableAutoResize, OnDisableAutoResize)
1343     IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
1344                         OnDisableScrollbarsForSmallWindows)
1345     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
1346     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
1347     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
1348     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
1349     IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
1350                         OnGetAllSavableResourceLinksForCurrentPage)
1351     IPC_MESSAGE_HANDLER(
1352         ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
1353         OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
1354     IPC_MESSAGE_HANDLER(ViewMsg_ShowContextMenu, OnShowContextMenu)
1355     // TODO(viettrungluu): Move to a separate message filter.
1356     IPC_MESSAGE_HANDLER(ViewMsg_SetHistoryLengthAndPrune,
1357                         OnSetHistoryLengthAndPrune)
1358     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
1359     IPC_MESSAGE_HANDLER(ViewMsg_ReleaseDisambiguationPopupBitmap,
1360                         OnReleaseDisambiguationPopupBitmap)
1361     IPC_MESSAGE_HANDLER(ViewMsg_WindowSnapshotCompleted,
1362                         OnWindowSnapshotCompleted)
1363     IPC_MESSAGE_HANDLER(ViewMsg_ForceRedraw, OnForceRedraw)
1364     IPC_MESSAGE_HANDLER(ViewMsg_SelectWordAroundCaret, OnSelectWordAroundCaret)
1365 #if defined(OS_ANDROID)
1366     IPC_MESSAGE_HANDLER(InputMsg_ActivateNearestFindResult,
1367                         OnActivateNearestFindResult)
1368     IPC_MESSAGE_HANDLER(ViewMsg_FindMatchRects, OnFindMatchRects)
1369     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTopControlsState,
1370                         OnUpdateTopControlsState)
1371     IPC_MESSAGE_HANDLER(ViewMsg_ExtractSmartClipData, OnExtractSmartClipData)
1372 #elif defined(OS_MACOSX)
1373     IPC_MESSAGE_HANDLER(ViewMsg_GetRenderedText,
1374                         OnGetRenderedText)
1375     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
1376                         OnPluginImeCompositionCompleted)
1377     IPC_MESSAGE_HANDLER(ViewMsg_SetInLiveResize, OnSetInLiveResize)
1378     IPC_MESSAGE_HANDLER(ViewMsg_SetWindowVisibility, OnSetWindowVisibility)
1379     IPC_MESSAGE_HANDLER(ViewMsg_WindowFrameChanged, OnWindowFrameChanged)
1380 #endif
1381     // Adding a new message? Add platform independent ones first, then put the
1382     // platform specific ones at the end.
1383
1384     // Have the super handle all other messages.
1385     IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
1386   IPC_END_MESSAGE_MAP()
1387
1388   return handled;
1389 }
1390
1391 void RenderViewImpl::OnSelectWordAroundCaret() {
1392   if (!webview())
1393     return;
1394
1395   handling_input_event_ = true;
1396   webview()->focusedFrame()->selectWordAroundCaret();
1397   handling_input_event_ = false;
1398 }
1399
1400 bool RenderViewImpl::IsBackForwardToStaleEntry(
1401     const FrameMsg_Navigate_Params& params,
1402     bool is_reload) {
1403   // Make sure this isn't a back/forward to an entry we have already cropped
1404   // or replaced from our history, before the browser knew about it.  If so,
1405   // a new navigation has committed in the mean time, and we can ignore this.
1406   bool is_back_forward = !is_reload && params.page_state.IsValid();
1407
1408   // Note: if the history_list_length_ is 0 for a back/forward, we must be
1409   // restoring from a previous session.  We'll update our state in OnNavigate.
1410   if (!is_back_forward || history_list_length_ <= 0)
1411     return false;
1412
1413   DCHECK_EQ(static_cast<int>(history_page_ids_.size()), history_list_length_);
1414
1415   // Check for whether the forward history has been cropped due to a recent
1416   // navigation the browser didn't know about.
1417   if (params.pending_history_list_offset >= history_list_length_)
1418     return true;
1419
1420   // Check for whether this entry has been replaced with a new one.
1421   int expected_page_id =
1422       history_page_ids_[params.pending_history_list_offset];
1423   if (expected_page_id > 0 && params.page_id != expected_page_id) {
1424     if (params.page_id < expected_page_id)
1425       return true;
1426
1427     // Otherwise we've removed an earlier entry and should have shifted all
1428     // entries left.  For now, it's ok to lazily update the list.
1429     // TODO(creis): Notify all live renderers when we remove entries from
1430     // the front of the list, so that we don't hit this case.
1431     history_page_ids_[params.pending_history_list_offset] = params.page_id;
1432   }
1433
1434   return false;
1435 }
1436
1437 void RenderViewImpl::OnCopyImageAt(int x, int y) {
1438   webview()->copyImageAt(WebPoint(x, y));
1439 }
1440
1441 void RenderViewImpl::OnSaveImageAt(int x, int y) {
1442   webview()->saveImageAt(WebPoint(x, y));
1443 }
1444
1445 void RenderViewImpl::OnUpdateTargetURLAck() {
1446   // Check if there is a targeturl waiting to be sent.
1447   if (target_url_status_ == TARGET_PENDING) {
1448     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_,
1449                                          pending_target_url_));
1450   }
1451
1452   target_url_status_ = TARGET_NONE;
1453 }
1454
1455 void RenderViewImpl::OnExecuteEditCommand(const std::string& name,
1456     const std::string& value) {
1457   if (!webview() || !webview()->focusedFrame())
1458     return;
1459
1460   webview()->focusedFrame()->executeCommand(
1461       WebString::fromUTF8(name), WebString::fromUTF8(value));
1462 }
1463
1464 void RenderViewImpl::OnMoveCaret(const gfx::Point& point) {
1465   if (!webview())
1466     return;
1467
1468   Send(new ViewHostMsg_MoveCaret_ACK(routing_id_));
1469
1470   webview()->focusedFrame()->moveCaretSelection(point);
1471 }
1472
1473 void RenderViewImpl::OnScrollFocusedEditableNodeIntoRect(
1474     const gfx::Rect& rect) {
1475   if (has_scrolled_focused_editable_node_into_rect_ &&
1476       rect == rect_for_scrolled_focused_editable_node_) {
1477     return;
1478   }
1479
1480   blink::WebElement element = GetFocusedElement();
1481   if (!element.isNull() && IsEditableNode(element)) {
1482     rect_for_scrolled_focused_editable_node_ = rect;
1483     has_scrolled_focused_editable_node_into_rect_ = true;
1484     webview()->scrollFocusedNodeIntoRect(rect);
1485   }
1486 }
1487
1488 void RenderViewImpl::OnSetEditCommandsForNextKeyEvent(
1489     const EditCommands& edit_commands) {
1490   edit_commands_ = edit_commands;
1491 }
1492
1493 void RenderViewImpl::OnSetHistoryLengthAndPrune(int history_length,
1494                                                 int32 minimum_page_id) {
1495   DCHECK_GE(history_length, 0);
1496   DCHECK(history_list_offset_ == history_list_length_ - 1);
1497   DCHECK_GE(minimum_page_id, -1);
1498
1499   // Generate the new list.
1500   std::vector<int32> new_history_page_ids(history_length, -1);
1501   for (size_t i = 0; i < history_page_ids_.size(); ++i) {
1502     if (minimum_page_id >= 0 && history_page_ids_[i] < minimum_page_id)
1503       continue;
1504     new_history_page_ids.push_back(history_page_ids_[i]);
1505   }
1506   new_history_page_ids.swap(history_page_ids_);
1507
1508   // Update indexes.
1509   history_list_length_ = history_page_ids_.size();
1510   history_list_offset_ = history_list_length_ - 1;
1511 }
1512
1513
1514 void RenderViewImpl::OnSetInitialFocus(bool reverse) {
1515   if (!webview())
1516     return;
1517   webview()->setInitialFocus(reverse);
1518 }
1519
1520 #if defined(OS_MACOSX)
1521 void RenderViewImpl::OnSetInLiveResize(bool in_live_resize) {
1522   if (!webview())
1523     return;
1524   if (in_live_resize)
1525     webview()->willStartLiveResize();
1526   else
1527     webview()->willEndLiveResize();
1528 }
1529 #endif
1530
1531 ///////////////////////////////////////////////////////////////////////////////
1532
1533 // Sends the current history state to the browser so it will be saved before we
1534 // navigate to a new page.
1535 void RenderViewImpl::UpdateSessionHistory(WebFrame* frame) {
1536   // If we have a valid page ID at this point, then it corresponds to the page
1537   // we are navigating away from.  Otherwise, this is the first navigation, so
1538   // there is no past session history to record.
1539   if (page_id_ == -1)
1540     return;
1541   SendUpdateState(history_controller_->GetCurrentEntry());
1542 }
1543
1544 void RenderViewImpl::SendUpdateState(HistoryEntry* entry) {
1545   if (!entry)
1546     return;
1547
1548   // Don't send state updates for kSwappedOutURL.
1549   if (entry->root().urlString() == WebString::fromUTF8(kSwappedOutURL))
1550     return;
1551
1552   Send(new ViewHostMsg_UpdateState(
1553       routing_id_, page_id_, HistoryEntryToPageState(entry)));
1554 }
1555
1556 bool RenderViewImpl::SendAndRunNestedMessageLoop(IPC::SyncMessage* message) {
1557   // Before WebKit asks us to show an alert (etc.), it takes care of doing the
1558   // equivalent of WebView::willEnterModalLoop.  In the case of showModalDialog
1559   // it is particularly important that we do not call willEnterModalLoop as
1560   // that would defer resource loads for the dialog itself.
1561   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
1562     RenderThreadImpl::current()->DoNotNotifyWebKitOfModalLoop();
1563
1564   message->EnableMessagePumping();  // Runs a nested message loop.
1565   return Send(message);
1566 }
1567
1568 void RenderViewImpl::GetWindowSnapshot(const WindowSnapshotCallback& callback) {
1569   int id = next_snapshot_id_++;
1570   pending_snapshots_.insert(std::make_pair(id, callback));
1571   ui::LatencyInfo latency_info;
1572   latency_info.AddLatencyNumber(ui::WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1573                                 0,
1574                                 id);
1575   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1576   if (RenderWidgetCompositor* rwc = compositor()) {
1577     latency_info_swap_promise_monitor =
1578         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1579   }
1580   ScheduleCompositeWithForcedRedraw();
1581 }
1582
1583 void RenderViewImpl::OnForceRedraw(int id) {
1584   ui::LatencyInfo latency_info;
1585   if (id) {
1586     latency_info.AddLatencyNumber(ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1587                                   0,
1588                                   id);
1589   }
1590   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1591   if (RenderWidgetCompositor* rwc = compositor()) {
1592     latency_info_swap_promise_monitor =
1593         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1594   }
1595   ScheduleCompositeWithForcedRedraw();
1596 }
1597
1598 void RenderViewImpl::OnWindowSnapshotCompleted(const int snapshot_id,
1599     const gfx::Size& size, const std::vector<unsigned char>& png) {
1600
1601   // Any pending snapshots with a lower ID than the one received are considered
1602   // to be implicitly complete, and returned the same snapshot data.
1603   PendingSnapshotMap::iterator it = pending_snapshots_.begin();
1604   while(it != pending_snapshots_.end()) {
1605       if (it->first <= snapshot_id) {
1606         it->second.Run(size, png);
1607         pending_snapshots_.erase(it++);
1608       } else {
1609         ++it;
1610       }
1611   }
1612 }
1613
1614 // blink::WebViewClient ------------------------------------------------------
1615
1616 WebView* RenderViewImpl::createView(WebLocalFrame* creator,
1617                                     const WebURLRequest& request,
1618                                     const WebWindowFeatures& features,
1619                                     const WebString& frame_name,
1620                                     WebNavigationPolicy policy,
1621                                     bool suppress_opener) {
1622   ViewHostMsg_CreateWindow_Params params;
1623   params.opener_id = routing_id_;
1624   params.user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
1625   if (GetContentClient()->renderer()->AllowPopup())
1626     params.user_gesture = true;
1627   params.window_container_type = WindowFeaturesToContainerType(features);
1628   params.session_storage_namespace_id = session_storage_namespace_id_;
1629   if (frame_name != "_blank")
1630     params.frame_name = frame_name;
1631   params.opener_render_frame_id =
1632       RenderFrameImpl::FromWebFrame(creator)->GetRoutingID();
1633   params.opener_url = creator->document().url();
1634   params.opener_top_level_frame_url = creator->top()->document().url();
1635   GURL security_url(creator->document().securityOrigin().toString());
1636   if (!security_url.is_valid())
1637     security_url = GURL();
1638   params.opener_security_origin = security_url;
1639   params.opener_suppressed = suppress_opener;
1640   params.disposition = NavigationPolicyToDisposition(policy);
1641   if (!request.isNull()) {
1642     params.target_url = request.url();
1643     params.referrer = GetReferrerFromRequest(creator, request);
1644   }
1645   params.features = features;
1646
1647   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
1648     params.additional_features.push_back(features.additionalFeatures[i]);
1649
1650   int32 routing_id = MSG_ROUTING_NONE;
1651   int32 main_frame_routing_id = MSG_ROUTING_NONE;
1652   int32 surface_id = 0;
1653   int64 cloned_session_storage_namespace_id = 0;
1654
1655   RenderThread::Get()->Send(
1656       new ViewHostMsg_CreateWindow(params,
1657                                    &routing_id,
1658                                    &main_frame_routing_id,
1659                                    &surface_id,
1660                                    &cloned_session_storage_namespace_id));
1661   if (routing_id == MSG_ROUTING_NONE)
1662     return NULL;
1663
1664   WebUserGestureIndicator::consumeUserGesture();
1665
1666   // While this view may be a background extension page, it can spawn a visible
1667   // render view. So we just assume that the new one is not another background
1668   // page instead of passing on our own value.
1669   // TODO(vangelis): Can we tell if the new view will be a background page?
1670   bool never_visible = false;
1671
1672   // The initial hidden state for the RenderViewImpl here has to match what the
1673   // browser will eventually decide for the given disposition. Since we have to
1674   // return from this call synchronously, we just have to make our best guess
1675   // and rely on the browser sending a WasHidden / WasShown message if it
1676   // disagrees.
1677   RenderViewImpl* view = RenderViewImpl::Create(
1678       routing_id_,
1679       true,  // window_was_created_with_opener
1680       renderer_preferences_,
1681       webkit_preferences_,
1682       routing_id,
1683       main_frame_routing_id,
1684       surface_id,
1685       cloned_session_storage_namespace_id,
1686       base::string16(),  // WebCore will take care of setting the correct name.
1687       true,              // is_renderer_created
1688       false,             // swapped_out
1689       MSG_ROUTING_NONE,  // proxy_routing_id
1690       params.disposition == NEW_BACKGROUND_TAB,  // hidden
1691       never_visible,
1692       1,  // next_page_id
1693       screen_info_);
1694   view->opened_by_user_gesture_ = params.user_gesture;
1695
1696   // Record whether the creator frame is trying to suppress the opener field.
1697   view->opener_suppressed_ = params.opener_suppressed;
1698
1699   return view->webview();
1700 }
1701
1702 WebWidget* RenderViewImpl::createPopupMenu(blink::WebPopupType popup_type) {
1703   RenderWidget* widget =
1704       RenderWidget::Create(routing_id_, popup_type, screen_info_);
1705   if (!widget)
1706     return NULL;
1707   if (screen_metrics_emulator_) {
1708     widget->SetPopupOriginAdjustmentsForEmulation(
1709         screen_metrics_emulator_.get());
1710   }
1711   return widget->webwidget();
1712 }
1713
1714 WebStorageNamespace* RenderViewImpl::createSessionStorageNamespace() {
1715   CHECK(session_storage_namespace_id_ != kInvalidSessionStorageNamespaceId);
1716   return new WebStorageNamespaceImpl(session_storage_namespace_id_);
1717 }
1718
1719 void RenderViewImpl::printPage(WebLocalFrame* frame) {
1720   FOR_EACH_OBSERVER(RenderViewObserver, observers_,
1721                     PrintPage(frame, handling_input_event_));
1722 }
1723
1724 bool RenderViewImpl::enumerateChosenDirectory(
1725     const WebString& path,
1726     WebFileChooserCompletion* chooser_completion) {
1727   int id = enumeration_completion_id_++;
1728   enumeration_completions_[id] = chooser_completion;
1729   return Send(new ViewHostMsg_EnumerateDirectory(
1730       routing_id_,
1731       id,
1732       base::FilePath::FromUTF16Unsafe(path)));
1733 }
1734
1735 void RenderViewImpl::FrameDidStartLoading(WebFrame* frame) {
1736   DCHECK_GE(frames_in_progress_, 0);
1737   if (frames_in_progress_ == 0)
1738     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStartLoading());
1739   frames_in_progress_++;
1740 }
1741
1742 void RenderViewImpl::FrameDidStopLoading(WebFrame* frame) {
1743   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
1744   // calls DidStopLoading() without a matching DidStartLoading().
1745   if (frames_in_progress_ == 0)
1746     return;
1747   frames_in_progress_--;
1748   if (frames_in_progress_ == 0) {
1749     DidStopLoadingIcons();
1750     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
1751   }
1752 }
1753
1754 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
1755   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
1756 }
1757
1758 bool RenderViewImpl::handleCurrentKeyboardEvent() {
1759   if (edit_commands_.empty())
1760     return false;
1761
1762   WebFrame* frame = webview()->focusedFrame();
1763   if (!frame)
1764     return false;
1765
1766   EditCommands::iterator it = edit_commands_.begin();
1767   EditCommands::iterator end = edit_commands_.end();
1768
1769   bool did_execute_command = false;
1770   for (; it != end; ++it) {
1771     // In gtk and cocoa, it's possible to bind multiple edit commands to one
1772     // key (but it's the exception). Once one edit command is not executed, it
1773     // seems safest to not execute the rest.
1774     if (!frame->executeCommand(WebString::fromUTF8(it->name),
1775                                WebString::fromUTF8(it->value),
1776                                GetFocusedElement()))
1777       break;
1778     did_execute_command = true;
1779   }
1780
1781   return did_execute_command;
1782 }
1783
1784 bool RenderViewImpl::runFileChooser(
1785     const blink::WebFileChooserParams& params,
1786     WebFileChooserCompletion* chooser_completion) {
1787   // Do not open the file dialog in a hidden RenderView.
1788   if (is_hidden())
1789     return false;
1790   FileChooserParams ipc_params;
1791   if (params.directory)
1792     ipc_params.mode = FileChooserParams::UploadFolder;
1793   else if (params.multiSelect)
1794     ipc_params.mode = FileChooserParams::OpenMultiple;
1795   else if (params.saveAs)
1796     ipc_params.mode = FileChooserParams::Save;
1797   else
1798     ipc_params.mode = FileChooserParams::Open;
1799   ipc_params.title = params.title;
1800   ipc_params.default_file_name =
1801       base::FilePath::FromUTF16Unsafe(params.initialValue);
1802   ipc_params.accept_types.reserve(params.acceptTypes.size());
1803   for (size_t i = 0; i < params.acceptTypes.size(); ++i)
1804     ipc_params.accept_types.push_back(params.acceptTypes[i]);
1805 #if defined(OS_ANDROID)
1806   ipc_params.capture = params.useMediaCapture;
1807 #endif
1808
1809   return ScheduleFileChooser(ipc_params, chooser_completion);
1810 }
1811
1812 void RenderViewImpl::showValidationMessage(
1813     const blink::WebRect& anchor_in_root_view,
1814     const blink::WebString& main_text,
1815     const blink::WebString& sub_text,
1816     blink::WebTextDirection hint) {
1817   base::string16 wrapped_main_text = main_text;
1818   base::string16 wrapped_sub_text = sub_text;
1819   if (hint == blink::WebTextDirectionLeftToRight) {
1820     wrapped_main_text =
1821         base::i18n::GetDisplayStringInLTRDirectionality(wrapped_main_text);
1822     if (!wrapped_sub_text.empty()) {
1823       wrapped_sub_text =
1824           base::i18n::GetDisplayStringInLTRDirectionality(wrapped_sub_text);
1825     }
1826   } else if (hint == blink::WebTextDirectionRightToLeft
1827              && !base::i18n::IsRTL()) {
1828     base::i18n::WrapStringWithRTLFormatting(&wrapped_main_text);
1829     if (!wrapped_sub_text.empty()) {
1830       base::i18n::WrapStringWithRTLFormatting(&wrapped_sub_text);
1831     }
1832   }
1833   Send(new ViewHostMsg_ShowValidationMessage(
1834       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view),
1835       wrapped_main_text, wrapped_sub_text));
1836 }
1837
1838 void RenderViewImpl::hideValidationMessage() {
1839   Send(new ViewHostMsg_HideValidationMessage(routing_id()));
1840 }
1841
1842 void RenderViewImpl::moveValidationMessage(
1843     const blink::WebRect& anchor_in_root_view) {
1844   Send(new ViewHostMsg_MoveValidationMessage(
1845       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view)));
1846 }
1847
1848 void RenderViewImpl::setStatusText(const WebString& text) {
1849 }
1850
1851 void RenderViewImpl::UpdateTargetURL(const GURL& url,
1852                                      const GURL& fallback_url) {
1853   GURL latest_url = url.is_empty() ? fallback_url : url;
1854   if (latest_url == target_url_)
1855     return;
1856
1857   // Tell the browser to display a destination link.
1858   if (target_url_status_ == TARGET_INFLIGHT ||
1859       target_url_status_ == TARGET_PENDING) {
1860     // If we have a request in-flight, save the URL to be sent when we
1861     // receive an ACK to the in-flight request. We can happily overwrite
1862     // any existing pending sends.
1863     pending_target_url_ = latest_url;
1864     target_url_status_ = TARGET_PENDING;
1865   } else {
1866     // URLs larger than |MaxURLChars()| cannot be sent through IPC -
1867     // see |ParamTraits<GURL>|.
1868     if (latest_url.possibly_invalid_spec().size() > GetMaxURLChars())
1869       latest_url = GURL();
1870     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_, latest_url));
1871     target_url_ = latest_url;
1872     target_url_status_ = TARGET_INFLIGHT;
1873   }
1874 }
1875
1876 gfx::RectF RenderViewImpl::ClientRectToPhysicalWindowRect(
1877     const gfx::RectF& rect) const {
1878   gfx::RectF window_rect = rect;
1879   window_rect.Scale(device_scale_factor_ * webview()->pageScaleFactor());
1880   return window_rect;
1881 }
1882
1883 void RenderViewImpl::StartNavStateSyncTimerIfNecessary() {
1884   // No need to update state if no page has committed yet.
1885   if (page_id_ == -1)
1886     return;
1887
1888   int delay;
1889   if (send_content_state_immediately_)
1890     delay = 0;
1891   else if (is_hidden())
1892     delay = kDelaySecondsForContentStateSyncHidden;
1893   else
1894     delay = kDelaySecondsForContentStateSync;
1895
1896   if (nav_state_sync_timer_.IsRunning()) {
1897     // The timer is already running. If the delay of the timer maches the amount
1898     // we want to delay by, then return. Otherwise stop the timer so that it
1899     // gets started with the right delay.
1900     if (nav_state_sync_timer_.GetCurrentDelay().InSeconds() == delay)
1901       return;
1902     nav_state_sync_timer_.Stop();
1903   }
1904
1905   nav_state_sync_timer_.Start(FROM_HERE, TimeDelta::FromSeconds(delay), this,
1906                               &RenderViewImpl::SyncNavigationState);
1907 }
1908
1909 void RenderViewImpl::setMouseOverURL(const WebURL& url) {
1910   mouse_over_url_ = GURL(url);
1911   UpdateTargetURL(mouse_over_url_, focus_url_);
1912 }
1913
1914 void RenderViewImpl::setKeyboardFocusURL(const WebURL& url) {
1915   focus_url_ = GURL(url);
1916   UpdateTargetURL(focus_url_, mouse_over_url_);
1917 }
1918
1919 void RenderViewImpl::startDragging(WebLocalFrame* frame,
1920                                    const WebDragData& data,
1921                                    WebDragOperationsMask mask,
1922                                    const WebImage& image,
1923                                    const WebPoint& webImageOffset) {
1924   DropData drop_data(DropDataBuilder::Build(data));
1925   drop_data.referrer_policy = frame->document().referrerPolicy();
1926   gfx::Vector2d imageOffset(webImageOffset.x, webImageOffset.y);
1927   Send(new DragHostMsg_StartDragging(routing_id_,
1928                                      drop_data,
1929                                      mask,
1930                                      image.getSkBitmap(),
1931                                      imageOffset,
1932                                      possible_drag_event_info_));
1933 }
1934
1935 bool RenderViewImpl::acceptsLoadDrops() {
1936   return renderer_preferences_.can_accept_load_drops;
1937 }
1938
1939 void RenderViewImpl::focusNext() {
1940   Send(new ViewHostMsg_TakeFocus(routing_id_, false));
1941 }
1942
1943 void RenderViewImpl::focusPrevious() {
1944   Send(new ViewHostMsg_TakeFocus(routing_id_, true));
1945 }
1946
1947 void RenderViewImpl::focusedNodeChanged(const WebNode& node) {
1948   has_scrolled_focused_editable_node_into_rect_ = false;
1949
1950   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
1951
1952   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(node));
1953
1954   // TODO(dmazzoni): this should be part of RenderFrameObserver.
1955   main_render_frame()->FocusedNodeChanged(node);
1956 }
1957
1958 void RenderViewImpl::didUpdateLayout() {
1959   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidUpdateLayout());
1960
1961   // We don't always want to set up a timer, only if we've been put in that
1962   // mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
1963   // message.
1964   if (!send_preferred_size_changes_ || !webview())
1965     return;
1966
1967   if (check_preferred_size_timer_.IsRunning())
1968     return;
1969   check_preferred_size_timer_.Start(FROM_HERE,
1970                                     TimeDelta::FromMilliseconds(0), this,
1971                                     &RenderViewImpl::CheckPreferredSize);
1972 }
1973
1974 void RenderViewImpl::navigateBackForwardSoon(int offset) {
1975   Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
1976 }
1977
1978 int RenderViewImpl::historyBackListCount() {
1979   return history_list_offset_ < 0 ? 0 : history_list_offset_;
1980 }
1981
1982 int RenderViewImpl::historyForwardListCount() {
1983   return history_list_length_ - historyBackListCount() - 1;
1984 }
1985
1986 void RenderViewImpl::postAccessibilityEvent(
1987     const WebAXObject& obj, blink::WebAXEvent event) {
1988   main_render_frame()->HandleWebAccessibilityEvent(obj, event);
1989 }
1990
1991 // blink::WebWidgetClient ----------------------------------------------------
1992
1993 void RenderViewImpl::didFocus() {
1994   // TODO(jcivelli): when https://bugs.webkit.org/show_bug.cgi?id=33389 is fixed
1995   //                 we won't have to test for user gesture anymore and we can
1996   //                 move that code back to render_widget.cc
1997   if (WebUserGestureIndicator::isProcessingUserGesture() &&
1998       !RenderThreadImpl::current()->layout_test_mode()) {
1999     Send(new ViewHostMsg_Focus(routing_id_));
2000   }
2001 }
2002
2003 void RenderViewImpl::didBlur() {
2004   // TODO(jcivelli): see TODO above in didFocus().
2005   if (WebUserGestureIndicator::isProcessingUserGesture() &&
2006       !RenderThreadImpl::current()->layout_test_mode()) {
2007     Send(new ViewHostMsg_Blur(routing_id_));
2008   }
2009 }
2010
2011 // We are supposed to get a single call to Show for a newly created RenderView
2012 // that was created via RenderViewImpl::CreateWebView.  So, we wait until this
2013 // point to dispatch the ShowView message.
2014 //
2015 // This method provides us with the information about how to display the newly
2016 // created RenderView (i.e., as a blocked popup or as a new tab).
2017 //
2018 void RenderViewImpl::show(WebNavigationPolicy policy) {
2019   if (did_show_) {
2020     // When supports_multiple_windows is disabled, popups are reusing
2021     // the same view. In some scenarios, this makes WebKit to call show() twice.
2022     if (webkit_preferences_.supports_multiple_windows)
2023       NOTREACHED() << "received extraneous Show call";
2024     return;
2025   }
2026   did_show_ = true;
2027
2028   DCHECK(opener_id_ != MSG_ROUTING_NONE);
2029
2030   // Force new windows to a popup if they were not opened with a user gesture.
2031   if (!opened_by_user_gesture_) {
2032     // We exempt background tabs for compat with older versions of Chrome.
2033     // TODO(darin): This seems bogus.  These should have a user gesture, so
2034     // we probably don't need this check.
2035     if (policy != blink::WebNavigationPolicyNewBackgroundTab)
2036       policy = blink::WebNavigationPolicyNewPopup;
2037   }
2038
2039   // NOTE: initial_pos_ may still have its default values at this point, but
2040   // that's okay.  It'll be ignored if disposition is not NEW_POPUP, or the
2041   // browser process will impose a default position otherwise.
2042   Send(new ViewHostMsg_ShowView(opener_id_, routing_id_,
2043       NavigationPolicyToDisposition(policy), initial_pos_,
2044       opened_by_user_gesture_));
2045   SetPendingWindowRect(initial_pos_);
2046 }
2047
2048 void RenderViewImpl::runModal() {
2049   DCHECK(did_show_) << "should already have shown the view";
2050
2051   // Don't allow further dialogs if we are waiting to swap out, since the
2052   // PageGroupLoadDeferrer in our stack prevents it.
2053   if (suppress_dialogs_until_swap_out_)
2054     return;
2055
2056   // We must keep WebKit's shared timer running in this case in order to allow
2057   // showModalDialog to function properly.
2058   //
2059   // TODO(darin): WebKit should really be smarter about suppressing events and
2060   // timers so that we do not need to manage the shared timer in such a heavy
2061   // handed manner.
2062   //
2063   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
2064     RenderThreadImpl::current()->DoNotSuspendWebKitSharedTimer();
2065
2066   SendAndRunNestedMessageLoop(new ViewHostMsg_RunModal(
2067       routing_id_, opener_id_));
2068 }
2069
2070 bool RenderViewImpl::enterFullScreen() {
2071   Send(new ViewHostMsg_ToggleFullscreen(routing_id_, true));
2072   return true;
2073 }
2074
2075 void RenderViewImpl::exitFullScreen() {
2076   Send(new ViewHostMsg_ToggleFullscreen(routing_id_, false));
2077 }
2078
2079 bool RenderViewImpl::requestPointerLock() {
2080   return mouse_lock_dispatcher_->LockMouse(webwidget_mouse_lock_target_.get());
2081 }
2082
2083 void RenderViewImpl::requestPointerUnlock() {
2084   mouse_lock_dispatcher_->UnlockMouse(webwidget_mouse_lock_target_.get());
2085 }
2086
2087 bool RenderViewImpl::isPointerLocked() {
2088   return mouse_lock_dispatcher_->IsMouseLockedTo(
2089       webwidget_mouse_lock_target_.get());
2090 }
2091
2092 void RenderViewImpl::didHandleGestureEvent(
2093     const WebGestureEvent& event,
2094     bool event_cancelled) {
2095   RenderWidget::didHandleGestureEvent(event, event_cancelled);
2096
2097   if (!event_cancelled) {
2098     FOR_EACH_OBSERVER(
2099         RenderViewObserver, observers_, DidHandleGestureEvent(event));
2100   }
2101
2102   if (event.type != blink::WebGestureEvent::GestureTap)
2103     return;
2104
2105   // TODO(estade): hit test the event against focused node to make sure
2106   // the tap actually hit the focused node.
2107   blink::WebTextInputType text_input_type =
2108       GetWebView()->textInputInfo().type;
2109
2110   Send(new ViewHostMsg_FocusedNodeTouched(
2111       routing_id(), text_input_type != blink::WebTextInputTypeNone));
2112 }
2113
2114 void RenderViewImpl::initializeLayerTreeView() {
2115   RenderWidget::initializeLayerTreeView();
2116   RenderWidgetCompositor* rwc = compositor();
2117   if (!rwc)
2118     return;
2119   if (webview() && webview()->devToolsAgent())
2120     webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
2121
2122 #if !defined(OS_MACOSX)  // many events are unhandled - http://crbug.com/138003
2123   RenderThreadImpl* render_thread = RenderThreadImpl::current();
2124   // render_thread may be NULL in tests.
2125   InputHandlerManager* input_handler_manager =
2126       render_thread ? render_thread->input_handler_manager() : NULL;
2127   if (input_handler_manager) {
2128     input_handler_manager->AddInputHandler(
2129         routing_id_, rwc->GetInputHandler(), AsWeakPtr());
2130   }
2131 #endif
2132 }
2133
2134 // blink::WebFrameClient -----------------------------------------------------
2135
2136 void RenderViewImpl::Repaint(const gfx::Size& size) {
2137   OnRepaint(size);
2138 }
2139
2140 void RenderViewImpl::SetEditCommandForNextKeyEvent(const std::string& name,
2141                                                    const std::string& value) {
2142   EditCommands edit_commands;
2143   edit_commands.push_back(EditCommand(name, value));
2144   OnSetEditCommandsForNextKeyEvent(edit_commands);
2145 }
2146
2147 void RenderViewImpl::ClearEditCommands() {
2148   edit_commands_.clear();
2149 }
2150
2151 SSLStatus RenderViewImpl::GetSSLStatusOfFrame(blink::WebFrame* frame) const {
2152   std::string security_info;
2153   if (frame && frame->dataSource())
2154     security_info = frame->dataSource()->response().securityInfo();
2155
2156   SSLStatus ssl_status;
2157   DeserializeSecurityInfo(security_info,
2158                           &ssl_status.cert_id,
2159                           &ssl_status.cert_status,
2160                           &ssl_status.security_bits,
2161                           &ssl_status.connection_status,
2162                           &ssl_status.signed_certificate_timestamp_ids);
2163   return ssl_status;
2164 }
2165
2166 const std::string& RenderViewImpl::GetAcceptLanguages() const {
2167   return renderer_preferences_.accept_languages;
2168 }
2169
2170 void RenderViewImpl::didCreateDataSource(WebLocalFrame* frame,
2171                                          WebDataSource* ds) {
2172   bool content_initiated = !pending_navigation_params_.get();
2173
2174   // Make sure any previous redirect URLs end up in our new data source.
2175   if (pending_navigation_params_.get()) {
2176     for (std::vector<GURL>::const_iterator i =
2177              pending_navigation_params_->redirects.begin();
2178          i != pending_navigation_params_->redirects.end(); ++i) {
2179       ds->appendRedirect(*i);
2180     }
2181   }
2182
2183   DocumentState* document_state = DocumentState::FromDataSource(ds);
2184   if (!document_state) {
2185     document_state = new DocumentState;
2186     ds->setExtraData(document_state);
2187     if (!content_initiated)
2188       PopulateDocumentStateFromPending(document_state);
2189   }
2190
2191   // Carry over the user agent override flag, if it exists.
2192   if (content_initiated && webview() && webview()->mainFrame() &&
2193       webview()->mainFrame()->isWebLocalFrame() &&
2194       webview()->mainFrame()->dataSource()) {
2195     DocumentState* old_document_state =
2196         DocumentState::FromDataSource(webview()->mainFrame()->dataSource());
2197     if (old_document_state) {
2198       InternalDocumentStateData* internal_data =
2199           InternalDocumentStateData::FromDocumentState(document_state);
2200       InternalDocumentStateData* old_internal_data =
2201           InternalDocumentStateData::FromDocumentState(old_document_state);
2202       internal_data->set_is_overriding_user_agent(
2203           old_internal_data->is_overriding_user_agent());
2204     }
2205   }
2206
2207   // The rest of RenderView assumes that a WebDataSource will always have a
2208   // non-null NavigationState.
2209   if (content_initiated) {
2210     document_state->set_navigation_state(
2211         NavigationState::CreateContentInitiated());
2212   } else {
2213     document_state->set_navigation_state(CreateNavigationStateFromPending());
2214     pending_navigation_params_.reset();
2215   }
2216
2217   // DocumentState::referred_by_prefetcher_ is true if we are
2218   // navigating from a page that used prefetching using a link on that
2219   // page.  We are early enough in the request process here that we
2220   // can still see the DocumentState of the previous page and set
2221   // this value appropriately.
2222   // TODO(gavinp): catch the important case of navigation in a new
2223   // renderer process.
2224   if (webview()) {
2225     if (WebFrame* old_frame = webview()->mainFrame()) {
2226       const WebURLRequest& original_request = ds->originalRequest();
2227       const GURL referrer(
2228           original_request.httpHeaderField(WebString::fromUTF8("Referer")));
2229       if (!referrer.is_empty() && old_frame->isWebLocalFrame() &&
2230           DocumentState::FromDataSource(old_frame->dataSource())
2231               ->was_prefetcher()) {
2232         for (; old_frame; old_frame = old_frame->traverseNext(false)) {
2233           WebDataSource* old_frame_ds = old_frame->dataSource();
2234           if (old_frame_ds && referrer == GURL(old_frame_ds->request().url())) {
2235             document_state->set_was_referred_by_prefetcher(true);
2236             break;
2237           }
2238         }
2239       }
2240     }
2241   }
2242
2243   if (content_initiated) {
2244     const WebURLRequest& request = ds->request();
2245     switch (request.cachePolicy()) {
2246       case WebURLRequest::UseProtocolCachePolicy:  // normal load.
2247         document_state->set_load_type(DocumentState::LINK_LOAD_NORMAL);
2248         break;
2249       case WebURLRequest::ReloadIgnoringCacheData:  // reload.
2250       case WebURLRequest::ReloadBypassingCache:  // end-to-end reload.
2251         document_state->set_load_type(DocumentState::LINK_LOAD_RELOAD);
2252         break;
2253       case WebURLRequest::ReturnCacheDataElseLoad:  // allow stale data.
2254         document_state->set_load_type(
2255             DocumentState::LINK_LOAD_CACHE_STALE_OK);
2256         break;
2257       case WebURLRequest::ReturnCacheDataDontLoad:  // Don't re-post.
2258         document_state->set_load_type(DocumentState::LINK_LOAD_CACHE_ONLY);
2259         break;
2260       default:
2261         NOTREACHED();
2262     }
2263   }
2264
2265   FOR_EACH_OBSERVER(
2266       RenderViewObserver, observers_, DidCreateDataSource(frame, ds));
2267 }
2268
2269 void RenderViewImpl::PopulateDocumentStateFromPending(
2270     DocumentState* document_state) {
2271   const FrameMsg_Navigate_Params& params = *pending_navigation_params_.get();
2272   document_state->set_request_time(params.request_time);
2273
2274   InternalDocumentStateData* internal_data =
2275       InternalDocumentStateData::FromDocumentState(document_state);
2276
2277   if (!params.url.SchemeIs(url::kJavaScriptScheme) &&
2278       params.navigation_type == FrameMsg_Navigate_Type::RESTORE) {
2279     // We're doing a load of a page that was restored from the last session. By
2280     // default this prefers the cache over loading (LOAD_PREFERRING_CACHE) which
2281     // can result in stale data for pages that are set to expire. We explicitly
2282     // override that by setting the policy here so that as necessary we load
2283     // from the network.
2284     //
2285     // TODO(davidben): Remove this in favor of passing a cache policy to the
2286     // loadHistoryItem call in OnNavigate. That requires not overloading
2287     // UseProtocolCachePolicy to mean both "normal load" and "determine cache
2288     // policy based on load type, etc".
2289     internal_data->set_cache_policy_override(
2290         WebURLRequest::UseProtocolCachePolicy);
2291   }
2292
2293   if (IsReload(params))
2294     document_state->set_load_type(DocumentState::RELOAD);
2295   else if (params.page_state.IsValid())
2296     document_state->set_load_type(DocumentState::HISTORY_LOAD);
2297   else
2298     document_state->set_load_type(DocumentState::NORMAL_LOAD);
2299
2300   internal_data->set_is_overriding_user_agent(params.is_overriding_user_agent);
2301   internal_data->set_must_reset_scroll_and_scale_state(
2302       params.navigation_type ==
2303           FrameMsg_Navigate_Type::RELOAD_ORIGINAL_REQUEST_URL);
2304   document_state->set_can_load_local_resources(params.can_load_local_resources);
2305 }
2306
2307 NavigationState* RenderViewImpl::CreateNavigationStateFromPending() {
2308   const FrameMsg_Navigate_Params& params = *pending_navigation_params_.get();
2309   NavigationState* navigation_state = NULL;
2310
2311   // A navigation resulting from loading a javascript URL should not be treated
2312   // as a browser initiated event.  Instead, we want it to look as if the page
2313   // initiated any load resulting from JS execution.
2314   if (!params.url.SchemeIs(url::kJavaScriptScheme)) {
2315     navigation_state = NavigationState::CreateBrowserInitiated(
2316         params.page_id,
2317         params.pending_history_list_offset,
2318         params.should_clear_history_list,
2319         params.transition);
2320     navigation_state->set_should_replace_current_entry(
2321         params.should_replace_current_entry);
2322     navigation_state->set_transferred_request_child_id(
2323         params.transferred_request_child_id);
2324     navigation_state->set_transferred_request_request_id(
2325         params.transferred_request_request_id);
2326     navigation_state->set_allow_download(params.allow_download);
2327     navigation_state->set_extra_headers(params.extra_headers);
2328   } else {
2329     navigation_state = NavigationState::CreateContentInitiated();
2330   }
2331   return navigation_state;
2332 }
2333
2334 void RenderViewImpl::ProcessViewLayoutFlags(const CommandLine& command_line) {
2335   bool enable_viewport =
2336       command_line.HasSwitch(switches::kEnableViewport) ||
2337       command_line.HasSwitch(switches::kEnableViewportMeta);
2338
2339   // If viewport tag is enabled, then the WebKit side will take care
2340   // of setting the fixed layout size and page scale limits.
2341   if (enable_viewport)
2342     return;
2343
2344   // When navigating to a new page, reset the page scale factor to be 1.0.
2345   webview()->setInitialPageScaleOverride(1.f);
2346
2347   float maxPageScaleFactor =
2348       command_line.HasSwitch(switches::kEnablePinch) ? 4.f : 1.f ;
2349   webview()->setPageScaleFactorLimits(1, maxPageScaleFactor);
2350 }
2351
2352 void RenderViewImpl::didClearWindowObject(WebLocalFrame* frame) {
2353   FOR_EACH_OBSERVER(
2354       RenderViewObserver, observers_, DidClearWindowObject(frame));
2355
2356   if (enabled_bindings_& BINDINGS_POLICY_WEB_UI)
2357     WebUIExtension::Install(frame);
2358
2359   if (enabled_bindings_ & BINDINGS_POLICY_STATS_COLLECTION)
2360     StatsCollectionController::Install(frame);
2361
2362   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
2363
2364   if (command_line.HasSwitch(switches::kEnableSkiaBenchmarking))
2365     SkiaBenchmarking::Install(frame);
2366
2367   if (command_line.HasSwitch(switches::kEnableMemoryBenchmarking))
2368     MemoryBenchmarkingExtension::Install(frame);
2369 }
2370
2371 void RenderViewImpl::didChangeIcon(WebLocalFrame* frame,
2372                                    WebIconURL::Type icon_type) {
2373   if (frame->parent())
2374     return;
2375
2376   if (!TouchEnabled() && icon_type != WebIconURL::TypeFavicon)
2377     return;
2378
2379   WebVector<WebIconURL> icon_urls = frame->iconURLs(icon_type);
2380   std::vector<FaviconURL> urls;
2381   for (size_t i = 0; i < icon_urls.size(); i++) {
2382     std::vector<gfx::Size> sizes;
2383     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
2384     urls.push_back(FaviconURL(
2385         icon_urls[i].iconURL(), ToFaviconType(icon_urls[i].iconType()), sizes));
2386   }
2387   SendUpdateFaviconURL(urls);
2388 }
2389
2390 void RenderViewImpl::didUpdateCurrentHistoryItem(WebLocalFrame* frame) {
2391   StartNavStateSyncTimerIfNecessary();
2392 }
2393
2394 void RenderViewImpl::CheckPreferredSize() {
2395   // We don't always want to send the change messages over IPC, only if we've
2396   // been put in that mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
2397   // message.
2398   if (!send_preferred_size_changes_ || !webview())
2399     return;
2400
2401   gfx::Size size = webview()->contentsPreferredMinimumSize();
2402
2403   // In the presence of zoom, these sizes are still reported as if unzoomed,
2404   // so we need to adjust.
2405   double zoom_factor = ZoomLevelToZoomFactor(webview()->zoomLevel());
2406   size.set_width(static_cast<int>(size.width() * zoom_factor));
2407   size.set_height(static_cast<int>(size.height() * zoom_factor));
2408
2409   if (size == preferred_size_)
2410     return;
2411
2412   preferred_size_ = size;
2413   Send(new ViewHostMsg_DidContentsPreferredSizeChange(routing_id_,
2414                                                       preferred_size_));
2415 }
2416
2417 BrowserPluginManager* RenderViewImpl::GetBrowserPluginManager() {
2418   if (!browser_plugin_manager_.get())
2419     browser_plugin_manager_ = BrowserPluginManager::Create(this);
2420   return browser_plugin_manager_.get();
2421 }
2422
2423 void RenderViewImpl::didChangeScrollOffset(WebLocalFrame* frame) {
2424   StartNavStateSyncTimerIfNecessary();
2425
2426   FOR_EACH_OBSERVER(
2427       RenderViewObserver, observers_, DidChangeScrollOffset(frame));
2428 }
2429
2430 void RenderViewImpl::SendFindReply(int request_id,
2431                                    int match_count,
2432                                    int ordinal,
2433                                    const WebRect& selection_rect,
2434                                    bool final_status_update) {
2435   Send(new ViewHostMsg_Find_Reply(routing_id_,
2436                                   request_id,
2437                                   match_count,
2438                                   selection_rect,
2439                                   ordinal,
2440                                   final_status_update));
2441 }
2442
2443 blink::WebString RenderViewImpl::acceptLanguages() {
2444   return WebString::fromUTF8(renderer_preferences_.accept_languages);
2445 }
2446
2447 // blink::WebPageSerializerClient implementation ------------------------------
2448
2449 void RenderViewImpl::didSerializeDataForFrame(
2450     const WebURL& frame_url,
2451     const WebCString& data,
2452     WebPageSerializerClient::PageSerializationStatus status) {
2453   Send(new ViewHostMsg_SendSerializedHtmlData(
2454     routing_id(),
2455     frame_url,
2456     data.data(),
2457     static_cast<int32>(status)));
2458 }
2459
2460 // RenderView implementation ---------------------------------------------------
2461
2462 bool RenderViewImpl::Send(IPC::Message* message) {
2463   return RenderWidget::Send(message);
2464 }
2465
2466 RenderFrame* RenderViewImpl::GetMainRenderFrame() {
2467   return main_render_frame_.get();
2468 }
2469
2470 int RenderViewImpl::GetRoutingID() const {
2471   return routing_id_;
2472 }
2473
2474 gfx::Size RenderViewImpl::GetSize() const {
2475   return size();
2476 }
2477
2478 WebPreferences& RenderViewImpl::GetWebkitPreferences() {
2479   return webkit_preferences_;
2480 }
2481
2482 void RenderViewImpl::SetWebkitPreferences(const WebPreferences& preferences) {
2483   OnUpdateWebPreferences(preferences);
2484 }
2485
2486 blink::WebView* RenderViewImpl::GetWebView() {
2487   return webview();
2488 }
2489
2490 blink::WebElement RenderViewImpl::GetFocusedElement() const {
2491   if (!webview())
2492     return WebElement();
2493   WebFrame* focused_frame = webview()->focusedFrame();
2494   if (focused_frame) {
2495     WebDocument doc = focused_frame->document();
2496     if (!doc.isNull())
2497       return doc.focusedElement();
2498   }
2499
2500   return WebElement();
2501 }
2502
2503 bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
2504   if (node.isNull())
2505     return false;
2506
2507   if (node.isContentEditable())
2508     return true;
2509
2510   if (node.isElementNode()) {
2511     const WebElement& element = node.toConst<WebElement>();
2512     if (element.isTextFormControlElement())
2513       return true;
2514
2515     // Also return true if it has an ARIA role of 'textbox'.
2516     for (unsigned i = 0; i < element.attributeCount(); ++i) {
2517       if (LowerCaseEqualsASCII(element.attributeLocalName(i), "role")) {
2518         if (LowerCaseEqualsASCII(element.attributeValue(i), "textbox"))
2519           return true;
2520         break;
2521       }
2522     }
2523   }
2524
2525   return false;
2526 }
2527
2528 bool RenderViewImpl::NodeContainsPoint(const WebNode& node,
2529                                        const gfx::Point& point) const {
2530   blink::WebHitTestResult hit_test =
2531       webview()->hitTestResultAt(WebPoint(point.x(), point.y()));
2532   return node.containsIncludingShadowDOM(hit_test.node());
2533 }
2534
2535 bool RenderViewImpl::ShouldDisplayScrollbars(int width, int height) const {
2536   return (!send_preferred_size_changes_ ||
2537           (disable_scrollbars_size_limit_.width() <= width ||
2538            disable_scrollbars_size_limit_.height() <= height));
2539 }
2540
2541 int RenderViewImpl::GetEnabledBindings() const {
2542   return enabled_bindings_;
2543 }
2544
2545 bool RenderViewImpl::GetContentStateImmediately() const {
2546   return send_content_state_immediately_;
2547 }
2548
2549 blink::WebPageVisibilityState RenderViewImpl::GetVisibilityState() const {
2550   return visibilityState();
2551 }
2552
2553 void RenderViewImpl::DidStartLoading() {
2554   main_render_frame_->didStartLoading(true);
2555 }
2556
2557 void RenderViewImpl::DidStopLoading() {
2558   main_render_frame_->didStopLoading();
2559 }
2560
2561 void RenderViewImpl::SyncNavigationState() {
2562   if (!webview())
2563     return;
2564   SendUpdateState(history_controller_->GetCurrentEntry());
2565 }
2566
2567 blink::WebPlugin* RenderViewImpl::GetWebPluginForFind() {
2568   if (!webview())
2569     return NULL;
2570
2571   WebFrame* main_frame = webview()->mainFrame();
2572   if (main_frame->isWebLocalFrame() &&
2573       main_frame->document().isPluginDocument())
2574     return webview()->mainFrame()->document().to<WebPluginDocument>().plugin();
2575
2576 #if defined(ENABLE_PLUGINS)
2577   if (plugin_find_handler_)
2578     return plugin_find_handler_->container()->plugin();
2579 #endif
2580
2581   return NULL;
2582 }
2583
2584 void RenderViewImpl::OnFind(int request_id,
2585                             const base::string16& search_text,
2586                             const WebFindOptions& options) {
2587   WebFrame* main_frame = webview()->mainFrame();
2588   blink::WebPlugin* plugin = GetWebPluginForFind();
2589   // Check if the plugin still exists in the document.
2590   if (plugin) {
2591     if (options.findNext) {
2592       // Just navigate back/forward.
2593       plugin->selectFindResult(options.forward);
2594     } else {
2595       if (!plugin->startFind(
2596           search_text, options.matchCase, request_id)) {
2597         // Send "no results".
2598         SendFindReply(request_id, 0, 0, gfx::Rect(), true);
2599       }
2600     }
2601     return;
2602   }
2603
2604   WebFrame* frame_after_main = main_frame->traverseNext(true);
2605   WebFrame* focused_frame = webview()->focusedFrame();
2606   WebFrame* search_frame = focused_frame;  // start searching focused frame.
2607
2608   bool multi_frame = (frame_after_main != main_frame);
2609
2610   // If we have multiple frames, we don't want to wrap the search within the
2611   // frame, so we check here if we only have main_frame in the chain.
2612   bool wrap_within_frame = !multi_frame;
2613
2614   WebRect selection_rect;
2615   bool result = false;
2616
2617   // If something is selected when we start searching it means we cannot just
2618   // increment the current match ordinal; we need to re-generate it.
2619   WebRange current_selection = focused_frame->selectionRange();
2620
2621   do {
2622     result = search_frame->find(
2623         request_id, search_text, options, wrap_within_frame, &selection_rect);
2624
2625     if (!result) {
2626       // don't leave text selected as you move to the next frame.
2627       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2628                                    GetFocusedElement());
2629
2630       // Find the next frame, but skip the invisible ones.
2631       do {
2632         // What is the next frame to search? (we might be going backwards). Note
2633         // that we specify wrap=true so that search_frame never becomes NULL.
2634         search_frame = options.forward ?
2635             search_frame->traverseNext(true) :
2636             search_frame->traversePrevious(true);
2637       } while (!search_frame->hasVisibleContent() &&
2638                search_frame != focused_frame);
2639
2640       // Make sure selection doesn't affect the search operation in new frame.
2641       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2642                                    GetFocusedElement());
2643
2644       // If we have multiple frames and we have wrapped back around to the
2645       // focused frame, we need to search it once more allowing wrap within
2646       // the frame, otherwise it will report 'no match' if the focused frame has
2647       // reported matches, but no frames after the focused_frame contain a
2648       // match for the search word(s).
2649       if (multi_frame && search_frame == focused_frame) {
2650         result = search_frame->find(
2651             request_id, search_text, options, true,  // Force wrapping.
2652             &selection_rect);
2653       }
2654     }
2655
2656     webview()->setFocusedFrame(search_frame);
2657   } while (!result && search_frame != focused_frame);
2658
2659   if (options.findNext && current_selection.isNull()) {
2660     // Force the main_frame to report the actual count.
2661     main_frame->increaseMatchCount(0, request_id);
2662   } else {
2663     // If nothing is found, set result to "0 of 0", otherwise, set it to
2664     // "-1 of 1" to indicate that we found at least one item, but we don't know
2665     // yet what is active.
2666     int ordinal = result ? -1 : 0;  // -1 here means, we might know more later.
2667     int match_count = result ? 1 : 0;  // 1 here means possibly more coming.
2668
2669     // If we find no matches then this will be our last status update.
2670     // Otherwise the scoping effort will send more results.
2671     bool final_status_update = !result;
2672
2673     SendFindReply(request_id, match_count, ordinal, selection_rect,
2674                   final_status_update);
2675
2676     // Scoping effort begins, starting with the mainframe.
2677     search_frame = main_frame;
2678
2679     main_frame->resetMatchCount();
2680
2681     do {
2682       // Cancel all old scoping requests before starting a new one.
2683       search_frame->cancelPendingScopingEffort();
2684
2685       // We don't start another scoping effort unless at least one match has
2686       // been found.
2687       if (result) {
2688         // Start new scoping request. If the scoping function determines that it
2689         // needs to scope, it will defer until later.
2690         search_frame->scopeStringMatches(request_id,
2691                                          search_text,
2692                                          options,
2693                                          true);  // reset the tickmarks
2694       }
2695
2696       // Iterate to the next frame. The frame will not necessarily scope, for
2697       // example if it is not visible.
2698       search_frame = search_frame->traverseNext(true);
2699     } while (search_frame != main_frame);
2700   }
2701 }
2702
2703 void RenderViewImpl::OnStopFinding(StopFindAction action) {
2704   WebView* view = webview();
2705   if (!view)
2706     return;
2707
2708   blink::WebPlugin* plugin = GetWebPluginForFind();
2709   if (plugin) {
2710     plugin->stopFind();
2711     return;
2712   }
2713
2714   bool clear_selection = action == STOP_FIND_ACTION_CLEAR_SELECTION;
2715   if (clear_selection) {
2716     view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"),
2717                                          GetFocusedElement());
2718   }
2719
2720   WebFrame* frame = view->mainFrame();
2721   while (frame) {
2722     frame->stopFinding(clear_selection);
2723     frame = frame->traverseNext(false);
2724   }
2725
2726   if (action == STOP_FIND_ACTION_ACTIVATE_SELECTION) {
2727     WebFrame* focused_frame = view->focusedFrame();
2728     if (focused_frame) {
2729       WebDocument doc = focused_frame->document();
2730       if (!doc.isNull()) {
2731         WebElement element = doc.focusedElement();
2732         if (!element.isNull())
2733           element.simulateClick();
2734       }
2735     }
2736   }
2737 }
2738
2739 #if defined(OS_ANDROID)
2740 void RenderViewImpl::OnActivateNearestFindResult(int request_id,
2741                                                  float x, float y) {
2742   if (!webview())
2743       return;
2744
2745   WebFrame* main_frame = webview()->mainFrame();
2746   WebRect selection_rect;
2747   int ordinal = main_frame->selectNearestFindMatch(WebFloatPoint(x, y),
2748                                                    &selection_rect);
2749   if (ordinal == -1) {
2750     // Something went wrong, so send a no-op reply (force the main_frame to
2751     // report the current match count) in case the host is waiting for a
2752     // response due to rate-limiting).
2753     main_frame->increaseMatchCount(0, request_id);
2754     return;
2755   }
2756
2757   SendFindReply(request_id,
2758                 -1 /* number_of_matches */,
2759                 ordinal,
2760                 selection_rect,
2761                 true /* final_update */);
2762 }
2763
2764 void RenderViewImpl::OnFindMatchRects(int current_version) {
2765   if (!webview())
2766       return;
2767
2768   WebFrame* main_frame = webview()->mainFrame();
2769   std::vector<gfx::RectF> match_rects;
2770
2771   int rects_version = main_frame->findMatchMarkersVersion();
2772   if (current_version != rects_version) {
2773     WebVector<WebFloatRect> web_match_rects;
2774     main_frame->findMatchRects(web_match_rects);
2775     match_rects.reserve(web_match_rects.size());
2776     for (size_t i = 0; i < web_match_rects.size(); ++i)
2777       match_rects.push_back(gfx::RectF(web_match_rects[i]));
2778   }
2779
2780   gfx::RectF active_rect = main_frame->activeFindMatchRect();
2781   Send(new ViewHostMsg_FindMatchRects_Reply(routing_id_,
2782                                                rects_version,
2783                                                match_rects,
2784                                                active_rect));
2785 }
2786 #endif
2787
2788 void RenderViewImpl::OnZoom(PageZoom zoom) {
2789   if (!webview())  // Not sure if this can happen, but no harm in being safe.
2790     return;
2791
2792   webview()->hidePopups();
2793
2794   double old_zoom_level = webview()->zoomLevel();
2795   double zoom_level;
2796   if (zoom == PAGE_ZOOM_RESET) {
2797     zoom_level = 0;
2798   } else if (static_cast<int>(old_zoom_level) == old_zoom_level) {
2799     // Previous zoom level is a whole number, so just increment/decrement.
2800     zoom_level = old_zoom_level + zoom;
2801   } else {
2802     // Either the user hit the zoom factor limit and thus the zoom level is now
2803     // not a whole number, or a plugin changed it to a custom value.  We want
2804     // to go to the next whole number so that the user can always get back to
2805     // 100% with the keyboard/menu.
2806     if ((old_zoom_level > 1 && zoom > 0) ||
2807         (old_zoom_level < 1 && zoom < 0)) {
2808       zoom_level = static_cast<int>(old_zoom_level + zoom);
2809     } else {
2810       // We're going towards 100%, so first go to the next whole number.
2811       zoom_level = static_cast<int>(old_zoom_level);
2812     }
2813   }
2814   webview()->setZoomLevel(zoom_level);
2815   zoomLevelChanged();
2816 }
2817
2818 void RenderViewImpl::OnSetZoomLevelForLoadingURL(const GURL& url,
2819                                                  double zoom_level) {
2820 #if !defined(OS_ANDROID)
2821   // On Android, page zoom isn't used, and in case of WebView, text zoom is used
2822   // for legacy WebView text scaling emulation. Thus, the code that resets
2823   // the zoom level from this map will be effectively resetting text zoom level.
2824   host_zoom_levels_[url] = zoom_level;
2825 #endif
2826 }
2827
2828 void RenderViewImpl::OnSetZoomLevelForView(bool uses_temporary_zoom_level,
2829                                            double level) {
2830   uses_temporary_zoom_level_ = uses_temporary_zoom_level;
2831
2832   webview()->hidePopups();
2833   webview()->setZoomLevel(level);
2834 }
2835
2836 void RenderViewImpl::OnSetPageEncoding(const std::string& encoding_name) {
2837   webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
2838 }
2839
2840 void RenderViewImpl::OnResetPageEncodingToDefault() {
2841   WebString no_encoding;
2842   webview()->setPageEncoding(no_encoding);
2843 }
2844
2845 void RenderViewImpl::OnPostMessageEvent(
2846     const ViewMsg_PostMessage_Params& params) {
2847   // TODO(nasko): Support sending to subframes.
2848   WebFrame* frame = webview()->mainFrame();
2849
2850   // Find the source frame if it exists.
2851   WebFrame* source_frame = NULL;
2852   if (params.source_routing_id != MSG_ROUTING_NONE) {
2853     RenderViewImpl* source_view = FromRoutingID(params.source_routing_id);
2854     if (source_view)
2855       source_frame = source_view->webview()->mainFrame();
2856   }
2857
2858   // If the message contained MessagePorts, create the corresponding endpoints.
2859   DCHECK_EQ(params.message_port_ids.size(), params.new_routing_ids.size());
2860   blink::WebMessagePortChannelArray channels(params.message_port_ids.size());
2861   for (size_t i = 0;
2862        i < params.message_port_ids.size() && i < params.new_routing_ids.size();
2863        ++i) {
2864     channels[i] =
2865         new WebMessagePortChannelImpl(params.new_routing_ids[i],
2866                                       params.message_port_ids[i],
2867                                       base::MessageLoopProxy::current().get());
2868   }
2869
2870   WebSerializedScriptValue serialized_script_value;
2871   if (params.is_data_raw_string) {
2872     v8::HandleScope handle_scope(blink::mainThreadIsolate());
2873     v8::Local<v8::Context> context = frame->mainWorldScriptContext();
2874     v8::Context::Scope context_scope(context);
2875     V8ValueConverterImpl converter;
2876     converter.SetDateAllowed(true);
2877     converter.SetRegExpAllowed(true);
2878     scoped_ptr<base::Value> value(new base::StringValue(params.data));
2879     v8::Handle<v8::Value> result_value = converter.ToV8Value(value.get(),
2880                                                              context);
2881     serialized_script_value = WebSerializedScriptValue::serialize(result_value);
2882   } else {
2883     serialized_script_value = WebSerializedScriptValue::fromString(params.data);
2884   }
2885
2886   // Create an event with the message.  The final parameter to initMessageEvent
2887   // is the last event ID, which is not used with postMessage.
2888   WebDOMEvent event = frame->document().createEvent("MessageEvent");
2889   WebDOMMessageEvent msg_event = event.to<WebDOMMessageEvent>();
2890   msg_event.initMessageEvent("message",
2891                              // |canBubble| and |cancellable| are always false
2892                              false, false,
2893                              serialized_script_value,
2894                              params.source_origin, source_frame, "", channels);
2895
2896   // We must pass in the target_origin to do the security check on this side,
2897   // since it may have changed since the original postMessage call was made.
2898   WebSecurityOrigin target_origin;
2899   if (!params.target_origin.empty()) {
2900     target_origin =
2901         WebSecurityOrigin::createFromString(WebString(params.target_origin));
2902   }
2903   frame->dispatchMessageEventWithOriginCheck(target_origin, msg_event);
2904 }
2905
2906 void RenderViewImpl::OnAllowBindings(int enabled_bindings_flags) {
2907   if ((enabled_bindings_flags & BINDINGS_POLICY_WEB_UI) &&
2908       !(enabled_bindings_ & BINDINGS_POLICY_WEB_UI)) {
2909     // WebUIExtensionData deletes itself when we're destroyed.
2910     new WebUIExtensionData(this);
2911     // WebUIMojo deletes itself when we're destroyed.
2912     new WebUIMojo(this);
2913   }
2914
2915   enabled_bindings_ |= enabled_bindings_flags;
2916
2917   // Keep track of the total bindings accumulated in this process.
2918   RenderProcess::current()->AddBindings(enabled_bindings_flags);
2919 }
2920
2921 void RenderViewImpl::OnDragTargetDragEnter(const DropData& drop_data,
2922                                            const gfx::Point& client_point,
2923                                            const gfx::Point& screen_point,
2924                                            WebDragOperationsMask ops,
2925                                            int key_modifiers) {
2926   WebDragOperation operation = webview()->dragTargetDragEnter(
2927       DropDataToWebDragData(drop_data),
2928       client_point,
2929       screen_point,
2930       ops,
2931       key_modifiers);
2932
2933   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2934 }
2935
2936 void RenderViewImpl::OnDragTargetDragOver(const gfx::Point& client_point,
2937                                           const gfx::Point& screen_point,
2938                                           WebDragOperationsMask ops,
2939                                           int key_modifiers) {
2940   WebDragOperation operation = webview()->dragTargetDragOver(
2941       client_point,
2942       screen_point,
2943       ops,
2944       key_modifiers);
2945
2946   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2947 }
2948
2949 void RenderViewImpl::OnDragTargetDragLeave() {
2950   webview()->dragTargetDragLeave();
2951 }
2952
2953 void RenderViewImpl::OnDragTargetDrop(const gfx::Point& client_point,
2954                                       const gfx::Point& screen_point,
2955                                       int key_modifiers) {
2956   webview()->dragTargetDrop(client_point, screen_point, key_modifiers);
2957
2958   Send(new DragHostMsg_TargetDrop_ACK(routing_id_));
2959 }
2960
2961 void RenderViewImpl::OnDragSourceEnded(const gfx::Point& client_point,
2962                                        const gfx::Point& screen_point,
2963                                        WebDragOperation op) {
2964   webview()->dragSourceEndedAt(client_point, screen_point, op);
2965 }
2966
2967 void RenderViewImpl::OnDragSourceSystemDragEnded() {
2968   webview()->dragSourceSystemDragEnded();
2969 }
2970
2971 void RenderViewImpl::OnUpdateWebPreferences(const WebPreferences& prefs) {
2972   webkit_preferences_ = prefs;
2973   ApplyWebPreferences(webkit_preferences_, webview());
2974 }
2975
2976 void RenderViewImpl::OnEnumerateDirectoryResponse(
2977     int id,
2978     const std::vector<base::FilePath>& paths) {
2979   if (!enumeration_completions_[id])
2980     return;
2981
2982   WebVector<WebString> ws_file_names(paths.size());
2983   for (size_t i = 0; i < paths.size(); ++i)
2984     ws_file_names[i] = paths[i].AsUTF16Unsafe();
2985
2986   enumeration_completions_[id]->didChooseFile(ws_file_names);
2987   enumeration_completions_.erase(id);
2988 }
2989
2990 void RenderViewImpl::OnFileChooserResponse(
2991     const std::vector<ui::SelectedFileInfo>& files) {
2992   // This could happen if we navigated to a different page before the user
2993   // closed the chooser.
2994   if (file_chooser_completions_.empty())
2995     return;
2996
2997   // Convert Chrome's SelectedFileInfo list to WebKit's.
2998   WebVector<WebFileChooserCompletion::SelectedFileInfo> selected_files(
2999       files.size());
3000   for (size_t i = 0; i < files.size(); ++i) {
3001     WebFileChooserCompletion::SelectedFileInfo selected_file;
3002     selected_file.path = files[i].local_path.AsUTF16Unsafe();
3003     selected_file.displayName =
3004         base::FilePath(files[i].display_name).AsUTF16Unsafe();
3005     selected_files[i] = selected_file;
3006   }
3007
3008   if (file_chooser_completions_.front()->completion)
3009     file_chooser_completions_.front()->completion->didChooseFile(
3010         selected_files);
3011   file_chooser_completions_.pop_front();
3012
3013   // If there are more pending file chooser requests, schedule one now.
3014   if (!file_chooser_completions_.empty()) {
3015     Send(new ViewHostMsg_RunFileChooser(routing_id_,
3016         file_chooser_completions_.front()->params));
3017   }
3018 }
3019
3020 void RenderViewImpl::OnEnableAutoResize(const gfx::Size& min_size,
3021                                         const gfx::Size& max_size) {
3022   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
3023   if (!webview())
3024     return;
3025   auto_resize_mode_ = true;
3026   webview()->enableAutoResizeMode(min_size, max_size);
3027 }
3028
3029 void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
3030   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
3031   if (!webview())
3032     return;
3033   auto_resize_mode_ = false;
3034   webview()->disableAutoResizeMode();
3035
3036   if (!new_size.IsEmpty()) {
3037     Resize(new_size,
3038            physical_backing_size_,
3039            top_controls_layout_height_,
3040            visible_viewport_size_,
3041            resizer_rect_,
3042            is_fullscreen_,
3043            NO_RESIZE_ACK);
3044   }
3045 }
3046
3047 void RenderViewImpl::OnEnablePreferredSizeChangedMode() {
3048   if (send_preferred_size_changes_)
3049     return;
3050   send_preferred_size_changes_ = true;
3051
3052   // Start off with an initial preferred size notification (in case
3053   // |didUpdateLayout| was already called).
3054   didUpdateLayout();
3055 }
3056
3057 void RenderViewImpl::OnDisableScrollbarsForSmallWindows(
3058     const gfx::Size& disable_scrollbar_size_limit) {
3059   disable_scrollbars_size_limit_ = disable_scrollbar_size_limit;
3060 }
3061
3062 void RenderViewImpl::OnSetRendererPrefs(
3063     const RendererPreferences& renderer_prefs) {
3064   double old_zoom_level = renderer_preferences_.default_zoom_level;
3065   std::string old_accept_languages = renderer_preferences_.accept_languages;
3066
3067   renderer_preferences_ = renderer_prefs;
3068   UpdateFontRenderingFromRendererPrefs();
3069
3070 #if defined(USE_DEFAULT_RENDER_THEME)
3071   if (renderer_prefs.use_custom_colors) {
3072     WebColorName name = blink::WebColorWebkitFocusRingColor;
3073     blink::setNamedColors(&name, &renderer_prefs.focus_ring_color, 1);
3074     blink::setCaretBlinkInterval(renderer_prefs.caret_blink_interval);
3075
3076     if (webview()) {
3077       webview()->setSelectionColors(
3078           renderer_prefs.active_selection_bg_color,
3079           renderer_prefs.active_selection_fg_color,
3080           renderer_prefs.inactive_selection_bg_color,
3081           renderer_prefs.inactive_selection_fg_color);
3082       webview()->themeChanged();
3083     }
3084   }
3085 #endif  // defined(USE_DEFAULT_RENDER_THEME)
3086
3087   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
3088     RenderThreadImpl::current()->SetFlingCurveParameters(
3089         renderer_prefs.touchpad_fling_profile,
3090         renderer_prefs.touchscreen_fling_profile);
3091
3092   // If the zoom level for this page matches the old zoom default, and this
3093   // is not a plugin, update the zoom level to match the new default.
3094   if (webview() && webview()->mainFrame()->isWebLocalFrame() &&
3095       !webview()->mainFrame()->document().isPluginDocument() &&
3096       !ZoomValuesEqual(old_zoom_level,
3097                        renderer_preferences_.default_zoom_level) &&
3098       ZoomValuesEqual(webview()->zoomLevel(), old_zoom_level)) {
3099     webview()->setZoomLevel(renderer_preferences_.default_zoom_level);
3100     zoomLevelChanged();
3101   }
3102
3103   if (webview() &&
3104       old_accept_languages != renderer_preferences_.accept_languages) {
3105     webview()->acceptLanguagesChanged();
3106   }
3107 }
3108
3109 void RenderViewImpl::OnMediaPlayerActionAt(const gfx::Point& location,
3110                                            const WebMediaPlayerAction& action) {
3111   if (webview())
3112     webview()->performMediaPlayerAction(action, location);
3113 }
3114
3115 void RenderViewImpl::OnOrientationChange() {
3116   // TODO(mlamouri): consumers of that event should be using DisplayObserver.
3117   FOR_EACH_OBSERVER(RenderViewObserver,
3118                     observers_,
3119                     OrientationChangeEvent());
3120
3121   webview()->mainFrame()->sendOrientationChangeEvent();
3122 }
3123
3124 void RenderViewImpl::OnPluginActionAt(const gfx::Point& location,
3125                                       const WebPluginAction& action) {
3126   if (webview())
3127     webview()->performPluginAction(action, location);
3128 }
3129
3130 void RenderViewImpl::OnGetAllSavableResourceLinksForCurrentPage(
3131     const GURL& page_url) {
3132   // Prepare list to storage all savable resource links.
3133   std::vector<GURL> resources_list;
3134   std::vector<GURL> referrer_urls_list;
3135   std::vector<blink::WebReferrerPolicy> referrer_policies_list;
3136   std::vector<GURL> frames_list;
3137   SavableResourcesResult result(&resources_list,
3138                                 &referrer_urls_list,
3139                                 &referrer_policies_list,
3140                                 &frames_list);
3141
3142   // webkit/ doesn't know about Referrer.
3143   if (!GetAllSavableResourceLinksForCurrentPage(
3144           webview(),
3145           page_url,
3146           &result,
3147           const_cast<const char**>(GetSavableSchemes()))) {
3148     // If something is wrong when collecting all savable resource links,
3149     // send empty list to embedder(browser) to tell it failed.
3150     referrer_urls_list.clear();
3151     referrer_policies_list.clear();
3152     resources_list.clear();
3153     frames_list.clear();
3154   }
3155
3156   std::vector<Referrer> referrers_list;
3157   CHECK_EQ(referrer_urls_list.size(), referrer_policies_list.size());
3158   for (unsigned i = 0; i < referrer_urls_list.size(); ++i) {
3159     referrers_list.push_back(
3160         Referrer(referrer_urls_list[i], referrer_policies_list[i]));
3161   }
3162
3163   // Send result of all savable resource links to embedder.
3164   Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id(),
3165                                                               resources_list,
3166                                                               referrers_list,
3167                                                               frames_list));
3168 }
3169
3170 void RenderViewImpl::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
3171     const std::vector<GURL>& links,
3172     const std::vector<base::FilePath>& local_paths,
3173     const base::FilePath& local_directory_name) {
3174
3175   // Convert std::vector of GURLs to WebVector<WebURL>
3176   WebVector<WebURL> weburl_links(links);
3177
3178   // Convert std::vector of base::FilePath to WebVector<WebString>
3179   WebVector<WebString> webstring_paths(local_paths.size());
3180   for (size_t i = 0; i < local_paths.size(); i++)
3181     webstring_paths[i] = local_paths[i].AsUTF16Unsafe();
3182
3183   WebPageSerializer::serialize(webview()->mainFrame()->toWebLocalFrame(),
3184                                true,
3185                                this,
3186                                weburl_links,
3187                                webstring_paths,
3188                                local_directory_name.AsUTF16Unsafe());
3189 }
3190
3191 void RenderViewImpl::OnSuppressDialogsUntilSwapOut() {
3192   // Don't show any more dialogs until we finish OnSwapOut.
3193   suppress_dialogs_until_swap_out_ = true;
3194 }
3195
3196 void RenderViewImpl::NavigateToSwappedOutURL(blink::WebFrame* frame) {
3197   // We use loadRequest instead of loadHTMLString because the former commits
3198   // synchronously.  Otherwise a new navigation can interrupt the navigation
3199   // to kSwappedOutURL. If that happens to be to the page we had been
3200   // showing, then WebKit will never send a commit and we'll be left spinning.
3201   // TODO(creis): Until we move this to RenderFrame, we may call this from a
3202   // swapped out RenderFrame while our own is_swapped_out_ is false.
3203   RenderFrameImpl* rf = RenderFrameImpl::FromWebFrame(frame);
3204   CHECK(is_swapped_out_ || rf->is_swapped_out());
3205   GURL swappedOutURL(kSwappedOutURL);
3206   WebURLRequest request(swappedOutURL);
3207   if (frame->isWebLocalFrame())
3208     frame->loadRequest(request);
3209 }
3210
3211 void RenderViewImpl::OnClosePage() {
3212   FOR_EACH_OBSERVER(RenderViewObserver, observers_, ClosePage());
3213   // TODO(creis): We'd rather use webview()->Close() here, but that currently
3214   // sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
3215   // in the onunload handler from appearing.  For now, we're bypassing that and
3216   // calling the FrameLoader's CloseURL method directly.  This should be
3217   // revisited to avoid having two ways to close a page.  Having a single way
3218   // to close that can run onunload is also useful for fixing
3219   // http://b/issue?id=753080.
3220   webview()->mainFrame()->dispatchUnloadEvent();
3221
3222   Send(new ViewHostMsg_ClosePage_ACK(routing_id_));
3223 }
3224
3225 void RenderViewImpl::OnThemeChanged() {
3226 #if defined(USE_AURA)
3227   // Aura doesn't care if we switch themes.
3228 #elif defined(OS_WIN)
3229   ui::NativeThemeWin::instance()->CloseHandles();
3230   if (webview())
3231     webview()->themeChanged();
3232 #else  // defined(OS_WIN)
3233   // TODO(port): we don't support theming on non-Windows platforms yet
3234   NOTIMPLEMENTED();
3235 #endif
3236 }
3237
3238 void RenderViewImpl::OnMoveOrResizeStarted() {
3239   if (webview())
3240     webview()->hidePopups();
3241 }
3242
3243 void RenderViewImpl::OnResize(const ViewMsg_Resize_Params& params) {
3244   TRACE_EVENT0("renderer", "RenderViewImpl::OnResize");
3245   if (webview()) {
3246     webview()->hidePopups();
3247     if (send_preferred_size_changes_) {
3248       webview()->mainFrame()->setCanHaveScrollbars(
3249           ShouldDisplayScrollbars(params.new_size.width(),
3250                                   params.new_size.height()));
3251     }
3252   }
3253
3254   gfx::Size old_visible_viewport_size = visible_viewport_size_;
3255
3256   RenderWidget::OnResize(params);
3257
3258   if (old_visible_viewport_size != visible_viewport_size_)
3259     has_scrolled_focused_editable_node_into_rect_ = false;
3260
3261   FOR_EACH_OBSERVER(RenderViewObserver,
3262                     observers_,
3263                     Resized());
3264 }
3265
3266 void RenderViewImpl::DidInitiatePaint() {
3267 #if defined(ENABLE_PLUGINS)
3268   // Notify all instances that we painted.  The same caveats apply as for
3269   // ViewFlushedPaint regarding instances closing themselves, so we take
3270   // similar precautions.
3271   PepperPluginSet plugins = active_pepper_instances_;
3272   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
3273     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
3274       (*i)->ViewInitiatedPaint();
3275   }
3276 #endif
3277 }
3278
3279 void RenderViewImpl::DidFlushPaint() {
3280 #if defined(ENABLE_PLUGINS)
3281   // Notify all instances that we flushed. This will call into the plugin, and
3282   // we it may ask to close itself as a result. This will, in turn, modify our
3283   // set, possibly invalidating the iterator. So we iterate on a copy that
3284   // won't change out from under us.
3285   PepperPluginSet plugins = active_pepper_instances_;
3286   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
3287     // The copy above makes sure our iterator is never invalid if some plugins
3288     // are destroyed. But some plugin may decide to close all of its views in
3289     // response to a paint in one of them, so we need to make sure each one is
3290     // still "current" before using it.
3291     //
3292     // It's possible that a plugin was destroyed, but another one was created
3293     // with the same address. In this case, we'll call ViewFlushedPaint on that
3294     // new plugin. But that's OK for this particular case since we're just
3295     // notifying all of our instances that the view flushed, and the new one is
3296     // one of our instances.
3297     //
3298     // What about the case where a new one is created in a callback at a new
3299     // address and we don't issue the callback? We're still OK since this
3300     // callback is used for flush callbacks and we could not have possibly
3301     // started a new paint for the new plugin while processing a previous paint
3302     // for an existing one.
3303     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
3304       (*i)->ViewFlushedPaint();
3305   }
3306 #endif
3307
3308   // If the RenderWidget is closing down then early-exit, otherwise we'll crash.
3309   // See crbug.com/112921.
3310   if (!webview())
3311     return;
3312
3313   WebFrame* main_frame = webview()->mainFrame();
3314   for (WebFrame* frame = main_frame; frame;
3315        frame = frame->traverseNext(false)) {
3316     if (frame->isWebLocalFrame())
3317       main_frame = frame;
3318   }
3319
3320   // If we have a provisional frame we are between the start and commit stages
3321   // of loading and we don't want to save stats.
3322   if (!main_frame->provisionalDataSource()) {
3323     WebDataSource* ds = main_frame->dataSource();
3324     DocumentState* document_state = DocumentState::FromDataSource(ds);
3325
3326     // TODO(jar): The following code should all be inside a method, probably in
3327     // NavigatorState.
3328     Time now = Time::Now();
3329     if (document_state->first_paint_time().is_null()) {
3330       document_state->set_first_paint_time(now);
3331     }
3332     if (document_state->first_paint_after_load_time().is_null() &&
3333         !document_state->finish_load_time().is_null()) {
3334       document_state->set_first_paint_after_load_time(now);
3335     }
3336   }
3337 }
3338
3339 gfx::Vector2d RenderViewImpl::GetScrollOffset() {
3340   WebFrame* main_frame = webview()->mainFrame();
3341   for (WebFrame* frame = main_frame; frame;
3342        frame = frame->traverseNext(false)) {
3343     // TODO(nasko): This is a hack for the case in which the top-level
3344     // frame is being rendered in another process. It will not
3345     // behave correctly for out of process iframes.
3346     if (frame->isWebLocalFrame()) {
3347       main_frame = frame;
3348       break;
3349     }
3350   }
3351
3352   WebSize scroll_offset = main_frame->scrollOffset();
3353   return gfx::Vector2d(scroll_offset.width, scroll_offset.height);
3354 }
3355
3356 void RenderViewImpl::OnClearFocusedElement() {
3357   if (webview())
3358     webview()->clearFocusedElement();
3359 }
3360
3361 void RenderViewImpl::OnSetBackgroundOpaque(bool opaque) {
3362   if (webview())
3363     webview()->setIsTransparent(!opaque);
3364   if (compositor_)
3365     compositor_->setHasTransparentBackground(!opaque);
3366 }
3367
3368 void RenderViewImpl::OnSetActive(bool active) {
3369   if (webview())
3370     webview()->setIsActive(active);
3371
3372 #if defined(ENABLE_PLUGINS) && defined(OS_MACOSX)
3373   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3374   for (plugin_it = plugin_delegates_.begin();
3375        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3376     (*plugin_it)->SetWindowFocus(active);
3377   }
3378 #endif
3379 }
3380
3381 #if defined(OS_MACOSX)
3382 void RenderViewImpl::OnSetWindowVisibility(bool visible) {
3383 #if defined(ENABLE_PLUGINS)
3384   // Inform plugins that their container has changed visibility.
3385   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3386   for (plugin_it = plugin_delegates_.begin();
3387        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3388     (*plugin_it)->SetContainerVisibility(visible);
3389   }
3390 #endif
3391 }
3392
3393 void RenderViewImpl::OnWindowFrameChanged(const gfx::Rect& window_frame,
3394                                           const gfx::Rect& view_frame) {
3395 #if defined(ENABLE_PLUGINS)
3396   // Inform plugins that their window's frame has changed.
3397   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3398   for (plugin_it = plugin_delegates_.begin();
3399        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3400     (*plugin_it)->WindowFrameChanged(window_frame, view_frame);
3401   }
3402 #endif
3403 }
3404
3405 void RenderViewImpl::OnPluginImeCompositionCompleted(const base::string16& text,
3406                                                      int plugin_id) {
3407   // WebPluginDelegateProxy is responsible for figuring out if this event
3408   // applies to it or not, so inform all the delegates.
3409   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3410   for (plugin_it = plugin_delegates_.begin();
3411        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3412     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
3413   }
3414 }
3415 #endif  // OS_MACOSX
3416
3417 void RenderViewImpl::OnClose() {
3418   if (closing_)
3419     RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3420   RenderWidget::OnClose();
3421 }
3422
3423 void RenderViewImpl::Close() {
3424   // We need to grab a pointer to the doomed WebView before we destroy it.
3425   WebView* doomed = webview();
3426   RenderWidget::Close();
3427   g_view_map.Get().erase(doomed);
3428   g_routing_id_view_map.Get().erase(routing_id_);
3429   RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3430 }
3431
3432 void RenderViewImpl::DidHandleKeyEvent() {
3433   ClearEditCommands();
3434 }
3435
3436 bool RenderViewImpl::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
3437   possible_drag_event_info_.event_source =
3438       ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
3439   possible_drag_event_info_.event_location =
3440       gfx::Point(event.globalX, event.globalY);
3441
3442 #if defined(ENABLE_PLUGINS)
3443   // This method is called for every mouse event that the render view receives.
3444   // And then the mouse event is forwarded to WebKit, which dispatches it to the
3445   // event target. Potentially a Pepper plugin will receive the event.
3446   // In order to tell whether a plugin gets the last mouse event and which it
3447   // is, we set |pepper_last_mouse_event_target_| to NULL here. If a plugin gets
3448   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
3449   // |pepper_last_mouse_event_target_|.
3450   pepper_last_mouse_event_target_ = NULL;
3451 #endif
3452
3453   // If the mouse is locked, only the current owner of the mouse lock can
3454   // process mouse events.
3455   return mouse_lock_dispatcher_->WillHandleMouseEvent(event);
3456 }
3457
3458 bool RenderViewImpl::WillHandleGestureEvent(
3459     const blink::WebGestureEvent& event) {
3460   possible_drag_event_info_.event_source =
3461       ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
3462   possible_drag_event_info_.event_location =
3463       gfx::Point(event.globalX, event.globalY);
3464   return false;
3465 }
3466
3467 void RenderViewImpl::DidHandleMouseEvent(const WebMouseEvent& event) {
3468   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleMouseEvent(event));
3469 }
3470
3471 void RenderViewImpl::DidHandleTouchEvent(const WebTouchEvent& event) {
3472   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleTouchEvent(event));
3473 }
3474
3475 bool RenderViewImpl::HasTouchEventHandlersAt(const gfx::Point& point) const {
3476   if (!webview())
3477     return false;
3478   return webview()->hasTouchEventHandlersAt(point);
3479 }
3480
3481 void RenderViewImpl::OnWasHidden() {
3482   RenderWidget::OnWasHidden();
3483
3484 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3485   RenderThreadImpl::current()->video_capture_impl_manager()->
3486       SuspendDevices(true);
3487   if (speech_recognition_dispatcher_)
3488     speech_recognition_dispatcher_->AbortAllRecognitions();
3489 #endif
3490
3491   if (webview())
3492     webview()->setVisibilityState(visibilityState(), false);
3493
3494 #if defined(ENABLE_PLUGINS)
3495   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3496        i != active_pepper_instances_.end(); ++i)
3497     (*i)->PageVisibilityChanged(false);
3498
3499 #if defined(OS_MACOSX)
3500   // Inform NPAPI plugins that their container is no longer visible.
3501   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3502   for (plugin_it = plugin_delegates_.begin();
3503        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3504     (*plugin_it)->SetContainerVisibility(false);
3505   }
3506 #endif  // OS_MACOSX
3507 #endif // ENABLE_PLUGINS
3508 }
3509
3510 void RenderViewImpl::OnWasShown(bool needs_repainting,
3511                                 const ui::LatencyInfo& latency_info) {
3512   RenderWidget::OnWasShown(needs_repainting, latency_info);
3513
3514 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3515   RenderThreadImpl::current()->video_capture_impl_manager()->
3516       SuspendDevices(false);
3517 #endif
3518
3519   if (webview())
3520     webview()->setVisibilityState(visibilityState(), false);
3521
3522 #if defined(ENABLE_PLUGINS)
3523   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3524        i != active_pepper_instances_.end(); ++i)
3525     (*i)->PageVisibilityChanged(true);
3526
3527 #if defined(OS_MACOSX)
3528   // Inform NPAPI plugins that their container is now visible.
3529   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3530   for (plugin_it = plugin_delegates_.begin();
3531        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3532     (*plugin_it)->SetContainerVisibility(true);
3533   }
3534 #endif  // OS_MACOSX
3535 #endif  // ENABLE_PLUGINS
3536 }
3537
3538 GURL RenderViewImpl::GetURLForGraphicsContext3D() {
3539   DCHECK(webview());
3540   if (webview()->mainFrame()->isWebLocalFrame())
3541     return GURL(webview()->mainFrame()->document().url());
3542   else
3543     return GURL("chrome://gpu/RenderViewImpl::CreateGraphicsContext3D");
3544 }
3545
3546 void RenderViewImpl::OnSetFocus(bool enable) {
3547   RenderWidget::OnSetFocus(enable);
3548
3549 #if defined(ENABLE_PLUGINS)
3550   if (webview() && webview()->isActive()) {
3551     // Notify all NPAPI plugins.
3552     std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3553     for (plugin_it = plugin_delegates_.begin();
3554          plugin_it != plugin_delegates_.end(); ++plugin_it) {
3555 #if defined(OS_MACOSX)
3556       // RenderWidget's call to setFocus can cause the underlying webview's
3557       // activation state to change just like a call to setIsActive.
3558       if (enable)
3559         (*plugin_it)->SetWindowFocus(true);
3560 #endif
3561       (*plugin_it)->SetContentAreaFocus(enable);
3562     }
3563   }
3564   // Notify all Pepper plugins.
3565   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3566        i != active_pepper_instances_.end(); ++i)
3567     (*i)->SetContentAreaFocus(enable);
3568 #endif
3569   // Notify all BrowserPlugins of the RenderView's focus state.
3570   if (browser_plugin_manager_.get())
3571     browser_plugin_manager_->UpdateFocusState();
3572 }
3573
3574 void RenderViewImpl::OnImeSetComposition(
3575     const base::string16& text,
3576     const std::vector<blink::WebCompositionUnderline>& underlines,
3577     int selection_start,
3578     int selection_end) {
3579 #if defined(ENABLE_PLUGINS)
3580   if (focused_pepper_plugin_) {
3581     focused_pepper_plugin_->render_frame()->OnImeSetComposition(
3582         text, underlines, selection_start, selection_end);
3583     return;
3584   }
3585
3586 #if defined(OS_WIN)
3587   // When a plug-in has focus, we create platform-specific IME data used by
3588   // our IME emulator and send it directly to the focused plug-in, i.e. we
3589   // bypass WebKit. (WebPluginDelegate dispatches this IME data only when its
3590   // instance ID is the same one as the specified ID.)
3591   if (focused_plugin_id_ >= 0) {
3592     std::vector<int> clauses;
3593     std::vector<int> target;
3594     for (size_t i = 0; i < underlines.size(); ++i) {
3595       clauses.push_back(underlines[i].startOffset);
3596       clauses.push_back(underlines[i].endOffset);
3597       if (underlines[i].thick) {
3598         target.clear();
3599         target.push_back(underlines[i].startOffset);
3600         target.push_back(underlines[i].endOffset);
3601       }
3602     }
3603     std::set<WebPluginDelegateProxy*>::iterator it;
3604     for (it = plugin_delegates_.begin(); it != plugin_delegates_.end(); ++it) {
3605       (*it)->ImeCompositionUpdated(text, clauses, target, selection_end,
3606                                    focused_plugin_id_);
3607     }
3608     return;
3609   }
3610 #endif  // OS_WIN
3611 #endif  // ENABLE_PLUGINS
3612   RenderWidget::OnImeSetComposition(text,
3613                                     underlines,
3614                                     selection_start,
3615                                     selection_end);
3616 }
3617
3618 void RenderViewImpl::OnImeConfirmComposition(
3619     const base::string16& text,
3620     const gfx::Range& replacement_range,
3621     bool keep_selection) {
3622 #if defined(ENABLE_PLUGINS)
3623   if (focused_pepper_plugin_) {
3624     focused_pepper_plugin_->render_frame()->OnImeConfirmComposition(
3625         text, replacement_range, keep_selection);
3626     return;
3627   }
3628 #if defined(OS_WIN)
3629   // Same as OnImeSetComposition(), we send the text from IMEs directly to
3630   // plug-ins. When we send IME text directly to plug-ins, we should not send
3631   // it to WebKit to prevent WebKit from controlling IMEs.
3632   // TODO(thakis): Honor |replacement_range| for plugins?
3633   if (focused_plugin_id_ >= 0) {
3634     std::set<WebPluginDelegateProxy*>::iterator it;
3635     for (it = plugin_delegates_.begin();
3636           it != plugin_delegates_.end(); ++it) {
3637       (*it)->ImeCompositionCompleted(text, focused_plugin_id_);
3638     }
3639     return;
3640   }
3641 #endif  // OS_WIN
3642 #endif  // ENABLE_PLUGINS
3643   if (replacement_range.IsValid() && webview()) {
3644     // Select the text in |replacement_range|, it will then be replaced by
3645     // text added by the call to RenderWidget::OnImeConfirmComposition().
3646     if (WebLocalFrame* frame = webview()->focusedFrame()->toWebLocalFrame()) {
3647       WebRange webrange = WebRange::fromDocumentRange(
3648           frame, replacement_range.start(), replacement_range.length());
3649       if (!webrange.isNull())
3650         frame->selectRange(webrange);
3651     }
3652   }
3653   RenderWidget::OnImeConfirmComposition(text,
3654                                         replacement_range,
3655                                         keep_selection);
3656 }
3657
3658 void RenderViewImpl::SetDeviceScaleFactor(float device_scale_factor) {
3659   RenderWidget::SetDeviceScaleFactor(device_scale_factor);
3660   if (webview()) {
3661     webview()->setDeviceScaleFactor(device_scale_factor);
3662     webview()->settings()->setPreferCompositingToLCDTextEnabled(
3663         PreferCompositingToLCDText(device_scale_factor_));
3664     webview()->settings()->setAcceleratedCompositingForTransitionEnabled(
3665         ShouldUseTransitionCompositing(device_scale_factor_));
3666   }
3667   if (auto_resize_mode_)
3668     AutoResizeCompositor();
3669
3670   if (browser_plugin_manager_.get())
3671     browser_plugin_manager_->UpdateDeviceScaleFactor(device_scale_factor_);
3672 }
3673
3674 bool RenderViewImpl::SetDeviceColorProfile(
3675     const std::vector<char>& profile) {
3676   bool changed = RenderWidget::SetDeviceColorProfile(profile);
3677   if (changed && webview()) {
3678     // TODO(noel): notify the webview() of the color profile change so it
3679     // can update and repaint all color profiled page elements.
3680   }
3681   return changed;
3682 }
3683
3684 ui::TextInputType RenderViewImpl::GetTextInputType() {
3685 #if defined(ENABLE_PLUGINS)
3686   if (focused_pepper_plugin_)
3687     return focused_pepper_plugin_->text_input_type();
3688 #endif
3689   return RenderWidget::GetTextInputType();
3690 }
3691
3692 void RenderViewImpl::GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) {
3693 #if defined(ENABLE_PLUGINS)
3694   if (focused_pepper_plugin_) {
3695     // TODO(kinaba) http://crbug.com/101101
3696     // Current Pepper IME API does not handle selection bounds. So we simply
3697     // use the caret position as an empty range for now. It will be updated
3698     // after Pepper API equips features related to surrounding text retrieval.
3699     gfx::Rect caret = focused_pepper_plugin_->GetCaretBounds();
3700     *start = caret;
3701     *end = caret;
3702     return;
3703   }
3704 #endif
3705   RenderWidget::GetSelectionBounds(start, end);
3706 }
3707
3708 #if defined(OS_MACOSX) || defined(USE_AURA)
3709 void RenderViewImpl::GetCompositionCharacterBounds(
3710     std::vector<gfx::Rect>* bounds) {
3711   DCHECK(bounds);
3712   bounds->clear();
3713
3714 #if defined(ENABLE_PLUGINS)
3715   if (focused_pepper_plugin_) {
3716     return;
3717   }
3718 #endif
3719
3720   if (!webview())
3721     return;
3722   size_t start_offset = 0;
3723   size_t character_count = 0;
3724   if (!webview()->compositionRange(&start_offset, &character_count))
3725     return;
3726   if (character_count == 0)
3727     return;
3728
3729   blink::WebFrame* frame = webview()->focusedFrame();
3730   if (!frame)
3731     return;
3732
3733   bounds->reserve(character_count);
3734   blink::WebRect webrect;
3735   for (size_t i = 0; i < character_count; ++i) {
3736     if (!frame->firstRectForCharacterRange(start_offset + i, 1, webrect)) {
3737       DLOG(ERROR) << "Could not retrieve character rectangle at " << i;
3738       bounds->clear();
3739       return;
3740     }
3741     bounds->push_back(webrect);
3742   }
3743 }
3744
3745 void RenderViewImpl::GetCompositionRange(gfx::Range* range) {
3746 #if defined(ENABLE_PLUGINS)
3747   if (focused_pepper_plugin_) {
3748     return;
3749   }
3750 #endif
3751   RenderWidget::GetCompositionRange(range);
3752 }
3753 #endif
3754
3755 bool RenderViewImpl::CanComposeInline() {
3756 #if defined(ENABLE_PLUGINS)
3757   if (focused_pepper_plugin_)
3758     return focused_pepper_plugin_->IsPluginAcceptingCompositionEvents();
3759 #endif
3760   return true;
3761 }
3762
3763 void RenderViewImpl::InstrumentWillBeginFrame(int frame_id) {
3764   if (!webview())
3765     return;
3766   if (!webview()->devToolsAgent())
3767     return;
3768   webview()->devToolsAgent()->didBeginFrame(frame_id);
3769 }
3770
3771 void RenderViewImpl::InstrumentDidBeginFrame() {
3772   if (!webview())
3773     return;
3774   if (!webview()->devToolsAgent())
3775     return;
3776   // TODO(jamesr/caseq): Decide if this needs to be renamed.
3777   webview()->devToolsAgent()->didComposite();
3778 }
3779
3780 void RenderViewImpl::InstrumentDidCancelFrame() {
3781   if (!webview())
3782     return;
3783   if (!webview()->devToolsAgent())
3784     return;
3785   webview()->devToolsAgent()->didCancelFrame();
3786 }
3787
3788 void RenderViewImpl::InstrumentWillComposite() {
3789   if (!webview())
3790     return;
3791   if (!webview()->devToolsAgent())
3792     return;
3793   webview()->devToolsAgent()->willComposite();
3794 }
3795
3796 void RenderViewImpl::SetScreenMetricsEmulationParameters(
3797     float device_scale_factor,
3798     const gfx::Point& root_layer_offset,
3799     float root_layer_scale) {
3800   if (webview() && compositor()) {
3801     webview()->setCompositorDeviceScaleFactorOverride(device_scale_factor);
3802     webview()->setRootLayerTransform(
3803         blink::WebSize(root_layer_offset.x(), root_layer_offset.y()),
3804         root_layer_scale);
3805   }
3806 }
3807
3808 bool RenderViewImpl::ScheduleFileChooser(
3809     const FileChooserParams& params,
3810     WebFileChooserCompletion* completion) {
3811   static const size_t kMaximumPendingFileChooseRequests = 4;
3812   if (file_chooser_completions_.size() > kMaximumPendingFileChooseRequests) {
3813     // This sanity check prevents too many file choose requests from getting
3814     // queued which could DoS the user. Getting these is most likely a
3815     // programming error (there are many ways to DoS the user so it's not
3816     // considered a "real" security check), either in JS requesting many file
3817     // choosers to pop up, or in a plugin.
3818     //
3819     // TODO(brettw) we might possibly want to require a user gesture to open
3820     // a file picker, which will address this issue in a better way.
3821     return false;
3822   }
3823
3824   file_chooser_completions_.push_back(linked_ptr<PendingFileChooser>(
3825       new PendingFileChooser(params, completion)));
3826   if (file_chooser_completions_.size() == 1) {
3827     // Actually show the browse dialog when this is the first request.
3828     Send(new ViewHostMsg_RunFileChooser(routing_id_, params));
3829   }
3830   return true;
3831 }
3832
3833 blink::WebSpeechRecognizer* RenderViewImpl::speechRecognizer() {
3834   if (!speech_recognition_dispatcher_)
3835     speech_recognition_dispatcher_ = new SpeechRecognitionDispatcher(this);
3836   return speech_recognition_dispatcher_;
3837 }
3838
3839 void RenderViewImpl::zoomLimitsChanged(double minimum_level,
3840                                        double maximum_level) {
3841   int minimum_percent = static_cast<int>(
3842       ZoomLevelToZoomFactor(minimum_level) * 100);
3843   int maximum_percent = static_cast<int>(
3844       ZoomLevelToZoomFactor(maximum_level) * 100);
3845
3846   Send(new ViewHostMsg_UpdateZoomLimits(
3847       routing_id_, minimum_percent, maximum_percent));
3848 }
3849
3850 void RenderViewImpl::zoomLevelChanged() {
3851   double zoom_level = webview()->zoomLevel();
3852
3853   // Do not send empty URLs to the browser when we are just setting the default
3854   // zoom level (from RendererPreferences) before the first navigation.
3855   if (!webview()->mainFrame()->document().url().isEmpty()) {
3856     // Tell the browser which url got zoomed so it can update the menu and the
3857     // saved values if necessary
3858     Send(new ViewHostMsg_DidZoomURL(
3859         routing_id_, zoom_level,
3860         GURL(webview()->mainFrame()->document().url())));
3861   }
3862 }
3863
3864 double RenderViewImpl::zoomLevelToZoomFactor(double zoom_level) const {
3865   return ZoomLevelToZoomFactor(zoom_level);
3866 }
3867
3868 double RenderViewImpl::zoomFactorToZoomLevel(double factor) const {
3869   return ZoomFactorToZoomLevel(factor);
3870 }
3871
3872 // TODO(sanjoy.pal): Remove once blink patch lands. http://crbug.com/406236.
3873 void RenderViewImpl::registerProtocolHandler(const WebString& scheme,
3874                                              const WebURL& base_url,
3875                                              const WebURL& url,
3876                                              const WebString& title) {
3877   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3878   GURL base(base_url);
3879   GURL absolute_url = base.Resolve(base::UTF16ToUTF8(url.string()));
3880   if (base.GetOrigin() != absolute_url.GetOrigin()) {
3881     return;
3882   }
3883   Send(new ViewHostMsg_RegisterProtocolHandler(routing_id_,
3884                                                base::UTF16ToUTF8(scheme),
3885                                                absolute_url,
3886                                                title,
3887                                                user_gesture));
3888 }
3889
3890 void RenderViewImpl::unregisterProtocolHandler(const WebString& scheme,
3891                                                const WebURL& base_url,
3892                                                const WebURL& url) {
3893   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3894   GURL base(base_url);
3895   GURL absolute_url = base.Resolve(base::UTF16ToUTF8(url.string()));
3896   if (base.GetOrigin() != absolute_url.GetOrigin())
3897     return;
3898   Send(new ViewHostMsg_UnregisterProtocolHandler(routing_id_,
3899                                                  base::UTF16ToUTF8(scheme),
3900                                                  absolute_url,
3901                                                  user_gesture));
3902 }
3903
3904 void RenderViewImpl::registerProtocolHandler(const WebString& scheme,
3905                                              const WebURL& url,
3906                                              const WebString& title) {
3907   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3908   Send(new ViewHostMsg_RegisterProtocolHandler(routing_id_,
3909                                                base::UTF16ToUTF8(scheme),
3910                                                url,
3911                                                title,
3912                                                user_gesture));
3913 }
3914
3915 void RenderViewImpl::unregisterProtocolHandler(const WebString& scheme,
3916                                                const WebURL& url) {
3917   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3918   Send(new ViewHostMsg_UnregisterProtocolHandler(routing_id_,
3919                                                  base::UTF16ToUTF8(scheme),
3920                                                  url,
3921                                                  user_gesture));
3922 }
3923
3924 blink::WebPageVisibilityState RenderViewImpl::visibilityState() const {
3925   blink::WebPageVisibilityState current_state = is_hidden() ?
3926       blink::WebPageVisibilityStateHidden :
3927       blink::WebPageVisibilityStateVisible;
3928   blink::WebPageVisibilityState override_state = current_state;
3929   // TODO(jam): move this method to WebFrameClient.
3930   if (GetContentClient()->renderer()->
3931           ShouldOverridePageVisibilityState(main_render_frame_.get(),
3932                                             &override_state))
3933     return override_state;
3934   return current_state;
3935 }
3936
3937 blink::WebPushClient* RenderViewImpl::webPushClient() {
3938   // TODO(mvanouwerkerk): Remove this method once the Push API code in Blink
3939   // has also switched over to Frame.
3940   return main_render_frame_->pushClient();
3941 }
3942
3943 void RenderViewImpl::draggableRegionsChanged() {
3944   FOR_EACH_OBSERVER(
3945       RenderViewObserver,
3946       observers_,
3947       DraggableRegionsChanged(webview()->mainFrame()));
3948 }
3949
3950 #if defined(OS_ANDROID)
3951 WebContentDetectionResult RenderViewImpl::detectContentAround(
3952     const WebHitTestResult& touch_hit) {
3953   DCHECK(!touch_hit.isNull());
3954   DCHECK(!touch_hit.node().isNull());
3955   DCHECK(touch_hit.node().isTextNode());
3956
3957   // Process the position with all the registered content detectors until
3958   // a match is found. Priority is provided by their relative order.
3959   for (ContentDetectorList::const_iterator it = content_detectors_.begin();
3960       it != content_detectors_.end(); ++it) {
3961     ContentDetector::Result content = (*it)->FindTappedContent(touch_hit);
3962     if (content.valid) {
3963       return WebContentDetectionResult(content.content_boundaries,
3964           base::UTF8ToUTF16(content.text), content.intent_url);
3965     }
3966   }
3967   return WebContentDetectionResult();
3968 }
3969
3970 void RenderViewImpl::scheduleContentIntent(const WebURL& intent) {
3971   // Introduce a short delay so that the user can notice the content.
3972   base::MessageLoop::current()->PostDelayedTask(
3973       FROM_HERE,
3974       base::Bind(&RenderViewImpl::LaunchAndroidContentIntent,
3975                  AsWeakPtr(),
3976                  intent,
3977                  expected_content_intent_id_),
3978       base::TimeDelta::FromMilliseconds(kContentIntentDelayMilliseconds));
3979 }
3980
3981 void RenderViewImpl::cancelScheduledContentIntents() {
3982   ++expected_content_intent_id_;
3983 }
3984
3985 void RenderViewImpl::LaunchAndroidContentIntent(const GURL& intent,
3986                                                 size_t request_id) {
3987   if (request_id != expected_content_intent_id_)
3988       return;
3989
3990   // Remove the content highlighting if any.
3991   scheduleComposite();
3992
3993   if (!intent.is_empty())
3994     Send(new ViewHostMsg_StartContentIntent(routing_id_, intent));
3995 }
3996
3997 bool RenderViewImpl::openDateTimeChooser(
3998     const blink::WebDateTimeChooserParams& params,
3999     blink::WebDateTimeChooserCompletion* completion) {
4000   // JavaScript may try to open a date time chooser while one is already open.
4001   if (date_time_picker_client_)
4002     return false;
4003   date_time_picker_client_.reset(
4004       new RendererDateTimePicker(this, params, completion));
4005   return date_time_picker_client_->Open();
4006 }
4007
4008 void RenderViewImpl::DismissDateTimeDialog() {
4009   DCHECK(date_time_picker_client_);
4010   date_time_picker_client_.reset(NULL);
4011 }
4012
4013 #endif  // defined(OS_ANDROID)
4014
4015 void RenderViewImpl::OnShowContextMenu(
4016     ui::MenuSourceType source_type, const gfx::Point& location) {
4017   context_menu_source_type_ = source_type;
4018   has_host_context_menu_location_ = true;
4019   host_context_menu_location_ = location;
4020   if (webview())
4021     webview()->showContextMenu();
4022   has_host_context_menu_location_ = false;
4023 }
4024
4025 void RenderViewImpl::OnEnableViewSourceMode() {
4026   if (!webview())
4027     return;
4028   WebFrame* main_frame = webview()->mainFrame();
4029   if (!main_frame)
4030     return;
4031   main_frame->enableViewSourceMode(true);
4032 }
4033
4034 #if defined(OS_ANDROID)
4035 bool RenderViewImpl::didTapMultipleTargets(
4036     const blink::WebGestureEvent& event,
4037     const WebVector<WebRect>& target_rects) {
4038   // Never show a disambiguation popup when accessibility is enabled,
4039   // as this interferes with "touch exploration".
4040   AccessibilityMode accessibility_mode =
4041       main_render_frame()->accessibility_mode();
4042   bool matches_accessibility_mode_complete =
4043       (accessibility_mode & AccessibilityModeComplete) ==
4044           AccessibilityModeComplete;
4045   if (matches_accessibility_mode_complete)
4046     return false;
4047
4048   gfx::Rect finger_rect(
4049       event.x - event.data.tap.width / 2, event.y - event.data.tap.height / 2,
4050       event.data.tap.width, event.data.tap.height);
4051   gfx::Rect zoom_rect;
4052   float new_total_scale =
4053       DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
4054           finger_rect, target_rects, GetSize(),
4055           gfx::Rect(webview()->mainFrame()->visibleContentRect()).size(),
4056           device_scale_factor_ * webview()->pageScaleFactor(), &zoom_rect);
4057   if (!new_total_scale)
4058     return false;
4059
4060   bool handled = false;
4061   switch (renderer_preferences_.tap_multiple_targets_strategy) {
4062     case TAP_MULTIPLE_TARGETS_STRATEGY_ZOOM:
4063       handled = webview()->zoomToMultipleTargetsRect(zoom_rect);
4064       break;
4065     case TAP_MULTIPLE_TARGETS_STRATEGY_POPUP: {
4066       gfx::Size canvas_size =
4067           gfx::ToCeiledSize(gfx::ScaleSize(zoom_rect.size(), new_total_scale));
4068       cc::SharedBitmapManager* manager =
4069           RenderThreadImpl::current()->shared_bitmap_manager();
4070       scoped_ptr<cc::SharedBitmap> shared_bitmap =
4071           manager->AllocateSharedBitmap(canvas_size);
4072       {
4073         SkBitmap bitmap;
4074         SkImageInfo info = SkImageInfo::MakeN32Premul(canvas_size.width(),
4075                                                       canvas_size.height());
4076         bitmap.installPixels(info, shared_bitmap->pixels(), info.minRowBytes());
4077         SkCanvas canvas(bitmap);
4078
4079         // TODO(trchen): Cleanup the device scale factor mess.
4080         // device scale will be applied in WebKit
4081         // --> zoom_rect doesn't include device scale,
4082         //     but WebKit will still draw on zoom_rect * device_scale_factor_
4083         canvas.scale(new_total_scale / device_scale_factor_,
4084                      new_total_scale / device_scale_factor_);
4085         canvas.translate(-zoom_rect.x() * device_scale_factor_,
4086                          -zoom_rect.y() * device_scale_factor_);
4087
4088         DCHECK(webwidget_->isAcceleratedCompositingActive());
4089         // TODO(aelias): The disambiguation popup should be composited so we
4090         // don't have to call this method.
4091         webwidget_->paintCompositedDeprecated(&canvas, zoom_rect);
4092       }
4093
4094       gfx::Rect physical_window_zoom_rect = gfx::ToEnclosingRect(
4095           ClientRectToPhysicalWindowRect(gfx::RectF(zoom_rect)));
4096       Send(new ViewHostMsg_ShowDisambiguationPopup(routing_id_,
4097                                                    physical_window_zoom_rect,
4098                                                    canvas_size,
4099                                                    shared_bitmap->id()));
4100       cc::SharedBitmapId id = shared_bitmap->id();
4101       disambiguation_bitmaps_[id] = shared_bitmap.release();
4102       handled = true;
4103       break;
4104     }
4105     case TAP_MULTIPLE_TARGETS_STRATEGY_NONE:
4106       // No-op.
4107       break;
4108   }
4109
4110   return handled;
4111 }
4112 #endif
4113
4114 unsigned RenderViewImpl::GetLocalSessionHistoryLengthForTesting() const {
4115   return history_list_length_;
4116 }
4117
4118 void RenderViewImpl::SetFocusAndActivateForTesting(bool enable) {
4119   if (enable) {
4120     if (has_focus())
4121       return;
4122     OnSetActive(true);
4123     OnSetFocus(true);
4124   } else {
4125     if (!has_focus())
4126       return;
4127     OnSetFocus(false);
4128     OnSetActive(false);
4129   }
4130 }
4131
4132 void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
4133   ViewMsg_Resize_Params params;
4134   params.screen_info = screen_info_;
4135   params.screen_info.deviceScaleFactor = factor;
4136   params.new_size = size();
4137   params.physical_backing_size =
4138       gfx::ToCeiledSize(gfx::ScaleSize(size(), factor));
4139   params.top_controls_layout_height = 0.f;
4140   params.resizer_rect = WebRect();
4141   params.is_fullscreen = is_fullscreen();
4142   OnResize(params);
4143 }
4144
4145 void RenderViewImpl::SetDeviceColorProfileForTesting(
4146     const std::vector<char>& color_profile) {
4147   SetDeviceColorProfile(color_profile);
4148 }
4149
4150 void RenderViewImpl::ForceResizeForTesting(const gfx::Size& new_size) {
4151   gfx::Rect new_position(rootWindowRect().x,
4152                          rootWindowRect().y,
4153                          new_size.width(),
4154                          new_size.height());
4155   ResizeSynchronously(new_position);
4156 }
4157
4158 void RenderViewImpl::UseSynchronousResizeModeForTesting(bool enable) {
4159   resizing_mode_selector_->set_is_synchronous_mode(enable);
4160 }
4161
4162 void RenderViewImpl::EnableAutoResizeForTesting(const gfx::Size& min_size,
4163                                                 const gfx::Size& max_size) {
4164   OnEnableAutoResize(min_size, max_size);
4165 }
4166
4167 void RenderViewImpl::DisableAutoResizeForTesting(const gfx::Size& new_size) {
4168   OnDisableAutoResize(new_size);
4169 }
4170
4171 void RenderViewImpl::OnReleaseDisambiguationPopupBitmap(
4172     const cc::SharedBitmapId& id) {
4173   BitmapMap::iterator it = disambiguation_bitmaps_.find(id);
4174   DCHECK(it != disambiguation_bitmaps_.end());
4175   delete it->second;
4176   disambiguation_bitmaps_.erase(it);
4177 }
4178
4179 void RenderViewImpl::DidCommitCompositorFrame() {
4180   RenderWidget::DidCommitCompositorFrame();
4181   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
4182 }
4183
4184 void RenderViewImpl::SendUpdateFaviconURL(const std::vector<FaviconURL>& urls) {
4185   if (!urls.empty())
4186     Send(new ViewHostMsg_UpdateFaviconURL(routing_id_, urls));
4187 }
4188
4189 void RenderViewImpl::DidStopLoadingIcons() {
4190   int icon_types = WebIconURL::TypeFavicon;
4191   if (TouchEnabled())
4192     icon_types |= WebIconURL::TypeTouchPrecomposed | WebIconURL::TypeTouch;
4193
4194   WebVector<WebIconURL> icon_urls =
4195       webview()->mainFrame()->iconURLs(icon_types);
4196
4197   std::vector<FaviconURL> urls;
4198   for (size_t i = 0; i < icon_urls.size(); i++) {
4199     WebURL url = icon_urls[i].iconURL();
4200     std::vector<gfx::Size> sizes;
4201     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
4202     if (!url.isEmpty())
4203       urls.push_back(
4204           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
4205   }
4206   SendUpdateFaviconURL(urls);
4207 }
4208
4209 }  // namespace content