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/files/file_path.h"
  17 #include "base/i18n/rtl.h"
  18 #include "base/json/json_writer.h"
  19 #include "base/lazy_instance.h"
  20 #include "base/memory/scoped_ptr.h"
  21 #include "base/message_loop/message_loop_proxy.h"
  22 #include "base/metrics/field_trial.h"
  23 #include "base/metrics/histogram.h"
  24 #include "base/process/kill.h"
  25 #include "base/process/process.h"
  26 #include "base/strings/string_number_conversions.h"
  27 #include "base/strings/string_piece.h"
  28 #include "base/strings/string_split.h"
  29 #include "base/strings/string_util.h"
  30 #include "base/strings/sys_string_conversions.h"
  31 #include "base/strings/utf_string_conversions.h"
  32 #include "base/time/time.h"
  33 #include "base/trace_event/trace_event.h"
  34 #include "content/child/appcache/appcache_dispatcher.h"
  35 #include "content/child/appcache/web_application_cache_host_impl.h"
  36 #include "content/child/child_shared_bitmap_manager.h"
  37 #include "content/child/npapi/webplugin_delegate_impl.h"
  38 #include "content/child/request_extra_data.h"
  39 #include "content/child/v8_value_converter_impl.h"
  40 #include "content/child/webmessageportchannel_impl.h"
  41 #include "content/common/content_constants_internal.h"
  42 #include "content/common/database_messages.h"
  43 #include "content/common/dom_storage/dom_storage_types.h"
  44 #include "content/common/drag_messages.h"
  45 #include "content/common/frame_messages.h"
  46 #include "content/common/frame_replication_state.h"
  47 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  48 #include "content/common/input_messages.h"
  49 #include "content/common/pepper_messages.h"
  50 #include "content/common/ssl_status_serialization.h"
  51 #include "content/common/view_messages.h"
  52 #include "content/public/common/bindings_policy.h"
  53 #include "content/public/common/content_client.h"
  54 #include "content/public/common/content_constants.h"
  55 #include "content/public/common/content_switches.h"
  56 #include "content/public/common/drop_data.h"
  57 #include "content/public/common/favicon_url.h"
  58 #include "content/public/common/file_chooser_file_info.h"
  59 #include "content/public/common/file_chooser_params.h"
  60 #include "content/public/common/page_state.h"
  61 #include "content/public/common/page_zoom.h"
  62 #include "content/public/common/ssl_status.h"
  63 #include "content/public/common/three_d_api_types.h"
  64 #include "content/public/common/url_constants.h"
  65 #include "content/public/common/url_utils.h"
  66 #include "content/public/common/web_preferences.h"
  67 #include "content/public/renderer/content_renderer_client.h"
  68 #include "content/public/renderer/document_state.h"
  69 #include "content/public/renderer/navigation_state.h"
  70 #include "content/public/renderer/render_view_observer.h"
  71 #include "content/public/renderer/render_view_visitor.h"
  72 #include "content/renderer/browser_plugin/browser_plugin.h"
  73 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
  74 #include "content/renderer/disambiguation_popup_helper.h"
  75 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
  76 #include "content/renderer/drop_data_builder.h"
  77 #include "content/renderer/gpu/render_widget_compositor.h"
  78 #include "content/renderer/history_controller.h"
  79 #include "content/renderer/history_serialization.h"
  80 #include "content/renderer/idle_user_detector.h"
  81 #include "content/renderer/ime_event_guard.h"
  82 #include "content/renderer/input/input_handler_manager.h"
  83 #include "content/renderer/internal_document_state_data.h"
  84 #include "content/renderer/media/audio_device_factory.h"
  85 #include "content/renderer/media/video_capture_impl_manager.h"
  86 #include "content/renderer/mhtml_generator.h"
  87 #include "content/renderer/navigation_state_impl.h"
  88 #include "content/renderer/net_info_helper.h"
  89 #include "content/renderer/render_frame_impl.h"
  90 #include "content/renderer/render_frame_proxy.h"
  91 #include "content/renderer/render_process.h"
  92 #include "content/renderer/render_thread_impl.h"
  93 #include "content/renderer/render_view_mouse_lock_dispatcher.h"
  94 #include "content/renderer/render_widget_fullscreen_pepper.h"
  95 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
  96 #include "content/renderer/resizing_mode_selector.h"
  97 #include "content/renderer/savable_resources.h"
  98 #include "content/renderer/speech_recognition_dispatcher.h"
  99 #include "content/renderer/text_input_client_observer.h"
 100 #include "content/renderer/web_ui_extension_data.h"
 101 #include "content/renderer/web_ui_mojo.h"
 102 #include "content/renderer/websharedworker_proxy.h"
 103 #include "media/audio/audio_output_device.h"
 104 #include "media/base/media_switches.h"
 105 #include "media/renderers/audio_renderer_impl.h"
 106 #include "media/renderers/gpu_video_accelerator_factories.h"
 107 #include "net/base/data_url.h"
 108 #include "net/base/escape.h"
 109 #include "net/base/net_errors.h"
 110 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 111 #include "net/http/http_util.h"
 112 #include "skia/ext/platform_canvas.h"
 113 #include "third_party/WebKit/public/platform/WebCString.h"
 114 #include "third_party/WebKit/public/platform/WebConnectionType.h"
 115 #include "third_party/WebKit/public/platform/WebDragData.h"
 116 #include "third_party/WebKit/public/platform/WebHTTPBody.h"
 117 #include "third_party/WebKit/public/platform/WebImage.h"
 118 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
 119 #include "third_party/WebKit/public/platform/WebPoint.h"
 120 #include "third_party/WebKit/public/platform/WebRect.h"
 121 #include "third_party/WebKit/public/platform/WebSize.h"
 122 #include "third_party/WebKit/public/platform/WebStorageQuotaCallbacks.h"
 123 #include "third_party/WebKit/public/platform/WebString.h"
 124 #include "third_party/WebKit/public/platform/WebURL.h"
 125 #include "third_party/WebKit/public/platform/WebURLError.h"
 126 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 127 #include "third_party/WebKit/public/platform/WebURLResponse.h"
 128 #include "third_party/WebKit/public/platform/WebVector.h"
 129 #include "third_party/WebKit/public/web/WebAXObject.h"
 130 #include "third_party/WebKit/public/web/WebColorName.h"
 131 #include "third_party/WebKit/public/web/WebColorSuggestion.h"
 132 #include "third_party/WebKit/public/web/WebDOMEvent.h"
 133 #include "third_party/WebKit/public/web/WebDOMMessageEvent.h"
 134 #include "third_party/WebKit/public/web/WebDataSource.h"
 135 #include "third_party/WebKit/public/web/WebDateTimeChooserCompletion.h"
 136 #include "third_party/WebKit/public/web/WebDateTimeChooserParams.h"
 137 #include "third_party/WebKit/public/web/WebDocument.h"
 138 #include "third_party/WebKit/public/web/WebElement.h"
 139 #include "third_party/WebKit/public/web/WebFileChooserParams.h"
 140 #include "third_party/WebKit/public/web/WebFindOptions.h"
 141 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 142 #include "third_party/WebKit/public/web/WebFormElement.h"
 143 #include "third_party/WebKit/public/web/WebFrame.h"
 144 #include "third_party/WebKit/public/web/WebGlyphCache.h"
 145 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 146 #include "third_party/WebKit/public/web/WebHitTestResult.h"
 147 #include "third_party/WebKit/public/web/WebInputElement.h"
 148 #include "third_party/WebKit/public/web/WebInputEvent.h"
 149 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 150 #include "third_party/WebKit/public/web/WebMediaPlayerAction.h"
 151 #include "third_party/WebKit/public/web/WebNavigationPolicy.h"
 152 #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
 153 #include "third_party/WebKit/public/web/WebNodeList.h"
 154 #include "third_party/WebKit/public/web/WebPageSerializer.h"
 155 #include "third_party/WebKit/public/web/WebPlugin.h"
 156 #include "third_party/WebKit/public/web/WebPluginAction.h"
 157 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 158 #include "third_party/WebKit/public/web/WebPluginDocument.h"
 159 #include "third_party/WebKit/public/web/WebRange.h"
 160 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 161 #include "third_party/WebKit/public/web/WebScriptSource.h"
 162 #include "third_party/WebKit/public/web/WebSearchableFormData.h"
 163 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 164 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 165 #include "third_party/WebKit/public/web/WebSettings.h"
 166 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 167 #include "third_party/WebKit/public/web/WebView.h"
 168 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 169 #include "third_party/WebKit/public/web/default/WebRenderTheme.h"
 170 #include "third_party/icu/source/common/unicode/uchar.h"
 171 #include "third_party/icu/source/common/unicode/uscript.h"
 172 #include "ui/base/clipboard/clipboard.h"
 173 #include "ui/base/ui_base_switches_util.h"
 174 #include "ui/events/latency_info.h"
 175 #include "ui/gfx/geometry/point.h"
 176 #include "ui/gfx/geometry/rect.h"
 177 #include "ui/gfx/geometry/rect_conversions.h"
 178 #include "ui/gfx/geometry/size_conversions.h"
 179 #include "ui/gfx/native_widget_types.h"
 180 #include "v8/include/v8.h"
 181
 182 #if defined(OS_ANDROID)
 183 #include <cpu-features.h>
 184
 185 #include "content/renderer/android/address_detector.h"
 186 #include "content/renderer/android/content_detector.h"
 187 #include "content/renderer/android/email_detector.h"
 188 #include "content/renderer/android/phone_number_detector.h"
 189 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 190 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 191 #include "ui/gfx/geometry/rect_f.h"
 192
 193 #elif defined(OS_WIN)
 194 // TODO(port): these files are currently Windows only because they concern:
 195 //   * theming
 196 #include "ui/native_theme/native_theme_win.h"
 197 #elif defined(USE_X11)
 198 #include "ui/native_theme/native_theme.h"
 199 #elif defined(OS_MACOSX)
 200 #include "skia/ext/skia_utils_mac.h"
 201 #endif
 202
 203 #if defined(ENABLE_PLUGINS)
 204 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 205 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 206 #include "content/renderer/pepper/pepper_plugin_registry.h"
 207 #endif
 208
 209 #if defined(ENABLE_WEBRTC)
 210 #include "content/renderer/media/rtc_peer_connection_handler.h"
 211 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 212 #endif
 213
 214 using blink::WebAXObject;
 215 using blink::WebApplicationCacheHost;
 216 using blink::WebApplicationCacheHostClient;
 217 using blink::WebCString;
 218 using blink::WebColor;
 219 using blink::WebColorName;
 220 using blink::WebConsoleMessage;
 221 using blink::WebData;
 222 using blink::WebDataSource;
 223 using blink::WebDocument;
 224 using blink::WebDragData;
 225 using blink::WebDragOperation;
 226 using blink::WebDragOperationsMask;
 227 using blink::WebElement;
 228 using blink::WebFileChooserCompletion;
 229 using blink::WebFindOptions;
 230 using blink::WebFormControlElement;
 231 using blink::WebFormElement;
 232 using blink::WebFrame;
 233 using blink::WebGestureEvent;
 234 using blink::WebHistoryItem;
 235 using blink::WebHTTPBody;
 236 using blink::WebIconURL;
 237 using blink::WebImage;
 238 using blink::WebInputElement;
 239 using blink::WebInputEvent;
 240 using blink::WebLocalFrame;
 241 using blink::WebMediaPlayerAction;
 242 using blink::WebMouseEvent;
 243 using blink::WebNavigationPolicy;
 244 using blink::WebNavigationType;
 245 using blink::WebNode;
 246 using blink::WebPageSerializer;
 247 using blink::WebPageSerializerClient;
 248 using blink::WebPeerConnection00Handler;
 249 using blink::WebPeerConnection00HandlerClient;
 250 using blink::WebPeerConnectionHandler;
 251 using blink::WebPeerConnectionHandlerClient;
 252 using blink::WebPluginAction;
 253 using blink::WebPluginContainer;
 254 using blink::WebPluginDocument;
 255 using blink::WebPoint;
 256 using blink::WebRange;
 257 using blink::WebRect;
 258 using blink::WebReferrerPolicy;
 259 using blink::WebScriptSource;
 260 using blink::WebSearchableFormData;
 261 using blink::WebSecurityOrigin;
 262 using blink::WebSecurityPolicy;
 263 using blink::WebSettings;
 264 using blink::WebSize;
 265 using blink::WebStorageNamespace;
 266 using blink::WebStorageQuotaCallbacks;
 267 using blink::WebStorageQuotaError;
 268 using blink::WebStorageQuotaType;
 269 using blink::WebString;
 270 using blink::WebTextAffinity;
 271 using blink::WebTextDirection;
 272 using blink::WebTouchEvent;
 273 using blink::WebURL;
 274 using blink::WebURLError;
 275 using blink::WebURLRequest;
 276 using blink::WebURLResponse;
 277 using blink::WebUserGestureIndicator;
 278 using blink::WebVector;
 279 using blink::WebView;
 280 using blink::WebWidget;
 281 using blink::WebWindowFeatures;
 282 using blink::WebNetworkStateNotifier;
 283 using blink::WebRuntimeFeatures;
 284 using base::Time;
 285 using base::TimeDelta;
 286
 287 #if defined(OS_ANDROID)
 288 using blink::WebContentDetectionResult;
 289 using blink::WebFloatPoint;
 290 using blink::WebFloatRect;
 291 using blink::WebHitTestResult;
 292 #endif
 293
 294 namespace content {
 295
 296 //-----------------------------------------------------------------------------
 297
 298 typedef std::map<blink::WebView*, RenderViewImpl*> ViewMap;
 299 static base::LazyInstance<ViewMap> g_view_map = LAZY_INSTANCE_INITIALIZER;
 300 typedef std::map<int32, RenderViewImpl*> RoutingIDViewMap;
 301 static base::LazyInstance<RoutingIDViewMap> g_routing_id_view_map =
 302     LAZY_INSTANCE_INITIALIZER;
 303
 304 // Time, in seconds, we delay before sending content state changes (such as form
 305 // state and scroll position) to the browser. We delay sending changes to avoid
 306 // spamming the browser.
 307 // To avoid having tab/session restore require sending a message to get the
 308 // current content state during tab closing we use a shorter timeout for the
 309 // foreground renderer. This means there is a small window of time from which
 310 // content state is modified and not sent to session restore, but this is
 311 // better than having to wake up all renderers during shutdown.
 312 const int kDelaySecondsForContentStateSyncHidden = 5;
 313 const int kDelaySecondsForContentStateSync = 1;
 314
 315 #if defined(OS_ANDROID)
 316 // Delay between tapping in content and launching the associated android intent.
 317 // Used to allow users see what has been recognized as content.
 318 const size_t kContentIntentDelayMilliseconds = 700;
 319 #endif
 320
 321 static RenderViewImpl* (*g_create_render_view_impl)(const ViewMsg_New_Params&) =
 322     NULL;
 323
 324 // static
 325 Referrer RenderViewImpl::GetReferrerFromRequest(
 326     WebFrame* frame,
 327     const WebURLRequest& request) {
 328   return Referrer(GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
 329                   request.referrerPolicy());
 330 }
 331
 332 // static
 333 WindowOpenDisposition RenderViewImpl::NavigationPolicyToDisposition(
 334     WebNavigationPolicy policy) {
 335   switch (policy) {
 336     case blink::WebNavigationPolicyIgnore:
 337       return IGNORE_ACTION;
 338     case blink::WebNavigationPolicyDownload:
 339       return SAVE_TO_DISK;
 340     case blink::WebNavigationPolicyCurrentTab:
 341       return CURRENT_TAB;
 342     case blink::WebNavigationPolicyNewBackgroundTab:
 343       return NEW_BACKGROUND_TAB;
 344     case blink::WebNavigationPolicyNewForegroundTab:
 345       return NEW_FOREGROUND_TAB;
 346     case blink::WebNavigationPolicyNewWindow:
 347       return NEW_WINDOW;
 348     case blink::WebNavigationPolicyNewPopup:
 349       return NEW_POPUP;
 350   default:
 351     NOTREACHED() << "Unexpected WebNavigationPolicy";
 352     return IGNORE_ACTION;
 353   }
 354 }
 355
 356 // Returns true if the device scale is high enough that losing subpixel
 357 // antialiasing won't have a noticeable effect on text quality.
 358 static bool DeviceScaleEnsuresTextQuality(float device_scale_factor) {
 359 #if defined(OS_ANDROID)
 360   // On Android, we never have subpixel antialiasing.
 361   return true;
 362 #else
 363   return device_scale_factor > 1.5f;
 364 #endif
 365
 366 }
 367
 368 static bool PreferCompositingToLCDText(CompositorDependencies* compositor_deps,
 369                                        float device_scale_factor) {
 370   const base::CommandLine& command_line =
 371       *base::CommandLine::ForCurrentProcess();
 372   if (command_line.HasSwitch(switches::kDisablePreferCompositingToLCDText))
 373     return false;
 374   if (command_line.HasSwitch(switches::kEnablePreferCompositingToLCDText))
 375     return true;
 376   if (!compositor_deps->IsLcdTextEnabled())
 377     return true;
 378   return DeviceScaleEnsuresTextQuality(device_scale_factor);
 379 }
 380
 381 static FaviconURL::IconType ToFaviconType(blink::WebIconURL::Type type) {
 382   switch (type) {
 383     case blink::WebIconURL::TypeFavicon:
 384       return FaviconURL::FAVICON;
 385     case blink::WebIconURL::TypeTouch:
 386       return FaviconURL::TOUCH_ICON;
 387     case blink::WebIconURL::TypeTouchPrecomposed:
 388       return FaviconURL::TOUCH_PRECOMPOSED_ICON;
 389     case blink::WebIconURL::TypeInvalid:
 390       return FaviconURL::INVALID_ICON;
 391   }
 392   return FaviconURL::INVALID_ICON;
 393 }
 394
 395 static void ConvertToFaviconSizes(
 396     const blink::WebVector<blink::WebSize>& web_sizes,
 397     std::vector<gfx::Size>* sizes) {
 398   DCHECK(sizes->empty());
 399   sizes->reserve(web_sizes.size());
 400   for (size_t i = 0; i < web_sizes.size(); ++i)
 401     sizes->push_back(gfx::Size(web_sizes[i]));
 402 }
 403
 404 ///////////////////////////////////////////////////////////////////////////////
 405
 406 struct RenderViewImpl::PendingFileChooser {
 407   PendingFileChooser(const FileChooserParams& p, WebFileChooserCompletion* c)
 408       : params(p),
 409         completion(c) {
 410   }
 411   FileChooserParams params;
 412   WebFileChooserCompletion* completion;  // MAY BE NULL to skip callback.
 413 };
 414
 415 namespace {
 416
 417 class WebWidgetLockTarget : public MouseLockDispatcher::LockTarget {
 418  public:
 419   explicit WebWidgetLockTarget(blink::WebWidget* webwidget)
 420       : webwidget_(webwidget) {}
 421
 422   void OnLockMouseACK(bool succeeded) override {
 423     if (succeeded)
 424       webwidget_->didAcquirePointerLock();
 425     else
 426       webwidget_->didNotAcquirePointerLock();
 427   }
 428
 429   void OnMouseLockLost() override { webwidget_->didLosePointerLock(); }
 430
 431   bool HandleMouseLockedInputEvent(const blink::WebMouseEvent& event) override {
 432     // The WebWidget handles mouse lock in WebKit's handleInputEvent().
 433     return false;
 434   }
 435
 436  private:
 437   blink::WebWidget* webwidget_;
 438 };
 439
 440 WebDragData DropDataToWebDragData(const DropData& drop_data) {
 441   std::vector<WebDragData::Item> item_list;
 442
 443   // These fields are currently unused when dragging into WebKit.
 444   DCHECK(drop_data.download_metadata.empty());
 445   DCHECK(drop_data.file_contents.empty());
 446   DCHECK(drop_data.file_description_filename.empty());
 447
 448   if (!drop_data.text.is_null()) {
 449     WebDragData::Item item;
 450     item.storageType = WebDragData::Item::StorageTypeString;
 451     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeText);
 452     item.stringData = drop_data.text.string();
 453     item_list.push_back(item);
 454   }
 455
 456   // TODO(dcheng): Do we need to distinguish between null and empty URLs? Is it
 457   // meaningful to write an empty URL to the clipboard?
 458   if (!drop_data.url.is_empty()) {
 459     WebDragData::Item item;
 460     item.storageType = WebDragData::Item::StorageTypeString;
 461     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeURIList);
 462     item.stringData = WebString::fromUTF8(drop_data.url.spec());
 463     item.title = drop_data.url_title;
 464     item_list.push_back(item);
 465   }
 466
 467   if (!drop_data.html.is_null()) {
 468     WebDragData::Item item;
 469     item.storageType = WebDragData::Item::StorageTypeString;
 470     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeHTML);
 471     item.stringData = drop_data.html.string();
 472     item.baseURL = drop_data.html_base_url;
 473     item_list.push_back(item);
 474   }
 475
 476   for (std::vector<ui::FileInfo>::const_iterator it =
 477            drop_data.filenames.begin();
 478        it != drop_data.filenames.end();
 479        ++it) {
 480     WebDragData::Item item;
 481     item.storageType = WebDragData::Item::StorageTypeFilename;
 482     item.filenameData = it->path.AsUTF16Unsafe();
 483     item.displayNameData = it->display_name.AsUTF16Unsafe();
 484     item_list.push_back(item);
 485   }
 486
 487   for (std::vector<DropData::FileSystemFileInfo>::const_iterator it =
 488            drop_data.file_system_files.begin();
 489        it != drop_data.file_system_files.end();
 490        ++it) {
 491     WebDragData::Item item;
 492     item.storageType = WebDragData::Item::StorageTypeFileSystemFile;
 493     item.fileSystemURL = it->url;
 494     item.fileSystemFileSize = it->size;
 495     item_list.push_back(item);
 496   }
 497
 498   for (std::map<base::string16, base::string16>::const_iterator it =
 499            drop_data.custom_data.begin();
 500        it != drop_data.custom_data.end();
 501        ++it) {
 502     WebDragData::Item item;
 503     item.storageType = WebDragData::Item::StorageTypeString;
 504     item.stringType = it->first;
 505     item.stringData = it->second;
 506     item_list.push_back(item);
 507   }
 508
 509   WebDragData result;
 510   result.initialize();
 511   result.setItems(item_list);
 512   result.setFilesystemId(drop_data.filesystem_id);
 513   return result;
 514 }
 515
 516 typedef void (*SetFontFamilyWrapper)(blink::WebSettings*,
 517                                      const base::string16&,
 518                                      UScriptCode);
 519
 520 void SetStandardFontFamilyWrapper(WebSettings* settings,
 521                                   const base::string16& font,
 522                                   UScriptCode script) {
 523   settings->setStandardFontFamily(font, script);
 524 }
 525
 526 void SetFixedFontFamilyWrapper(WebSettings* settings,
 527                                const base::string16& font,
 528                                UScriptCode script) {
 529   settings->setFixedFontFamily(font, script);
 530 }
 531
 532 void SetSerifFontFamilyWrapper(WebSettings* settings,
 533                                const base::string16& font,
 534                                UScriptCode script) {
 535   settings->setSerifFontFamily(font, script);
 536 }
 537
 538 void SetSansSerifFontFamilyWrapper(WebSettings* settings,
 539                                    const base::string16& font,
 540                                    UScriptCode script) {
 541   settings->setSansSerifFontFamily(font, script);
 542 }
 543
 544 void SetCursiveFontFamilyWrapper(WebSettings* settings,
 545                                  const base::string16& font,
 546                                  UScriptCode script) {
 547   settings->setCursiveFontFamily(font, script);
 548 }
 549
 550 void SetFantasyFontFamilyWrapper(WebSettings* settings,
 551                                  const base::string16& font,
 552                                  UScriptCode script) {
 553   settings->setFantasyFontFamily(font, script);
 554 }
 555
 556 void SetPictographFontFamilyWrapper(WebSettings* settings,
 557                                     const base::string16& font,
 558                                     UScriptCode script) {
 559   settings->setPictographFontFamily(font, script);
 560 }
 561
 562 // If |scriptCode| is a member of a family of "similar" script codes, returns
 563 // the script code in that family that is used by WebKit for font selection
 564 // purposes.  For example, USCRIPT_KATAKANA_OR_HIRAGANA and USCRIPT_JAPANESE are
 565 // considered equivalent for the purposes of font selection.  WebKit uses the
 566 // script code USCRIPT_KATAKANA_OR_HIRAGANA.  So, if |scriptCode| is
 567 // USCRIPT_JAPANESE, the function returns USCRIPT_KATAKANA_OR_HIRAGANA.  WebKit
 568 // uses different scripts than the ones in Chrome pref names because the version
 569 // of ICU included on certain ports does not have some of the newer scripts.  If
 570 // |scriptCode| is not a member of such a family, returns |scriptCode|.
 571 UScriptCode GetScriptForWebSettings(UScriptCode scriptCode) {
 572   switch (scriptCode) {
 573     case USCRIPT_HIRAGANA:
 574     case USCRIPT_KATAKANA:
 575     case USCRIPT_JAPANESE:
 576       return USCRIPT_KATAKANA_OR_HIRAGANA;
 577     case USCRIPT_KOREAN:
 578       return USCRIPT_HANGUL;
 579     default:
 580       return scriptCode;
 581   }
 582 }
 583
 584 void ApplyFontsFromMap(const ScriptFontFamilyMap& map,
 585                        SetFontFamilyWrapper setter,
 586                        WebSettings* settings) {
 587   for (ScriptFontFamilyMap::const_iterator it = map.begin(); it != map.end();
 588        ++it) {
 589     int32 script = u_getPropertyValueEnum(UCHAR_SCRIPT, (it->first).c_str());
 590     if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
 591       UScriptCode code = static_cast<UScriptCode>(script);
 592       (*setter)(settings, it->second, GetScriptForWebSettings(code));
 593     }
 594   }
 595 }
 596
 597 void ApplyBlinkSettings(const base::CommandLine& command_line,
 598                         WebSettings* settings) {
 599   if (!command_line.HasSwitch(switches::kBlinkSettings))
 600     return;
 601
 602   std::vector<std::string> blink_settings;
 603   base::SplitString(
 604       command_line.GetSwitchValueASCII(switches::kBlinkSettings), ',',
 605       &blink_settings);
 606   for (const std::string& setting : blink_settings) {
 607     size_t pos = setting.find('=');
 608     settings->setFromStrings(
 609         blink::WebString::fromLatin1(setting.substr(0, pos)),
 610         blink::WebString::fromLatin1(
 611             pos == std::string::npos ? "" : setting.substr(pos + 1)));
 612   }
 613 }
 614
 615 }  // namespace
 616
 617 RenderViewImpl::RenderViewImpl(const ViewMsg_New_Params& params)
 618     : RenderWidget(blink::WebPopupTypeNone,
 619                    params.initial_size.screen_info,
 620                    params.swapped_out,
 621                    params.hidden,
 622                    params.never_visible),
 623       webkit_preferences_(params.web_preferences),
 624       send_content_state_immediately_(false),
 625       enabled_bindings_(0),
 626       send_preferred_size_changes_(false),
 627       navigation_gesture_(NavigationGestureUnknown),
 628       opened_by_user_gesture_(true),
 629       opener_suppressed_(false),
 630       suppress_dialogs_until_swap_out_(false),
 631       page_id_(-1),
 632       next_page_id_(params.next_page_id),
 633       history_list_offset_(-1),
 634       history_list_length_(0),
 635       frames_in_progress_(0),
 636       target_url_status_(TARGET_NONE),
 637       uses_temporary_zoom_level_(false),
 638 #if defined(OS_ANDROID)
 639       top_controls_constraints_(TOP_CONTROLS_STATE_BOTH),
 640 #endif
 641       has_scrolled_focused_editable_node_into_rect_(false),
 642       speech_recognition_dispatcher_(NULL),
 643       mouse_lock_dispatcher_(NULL),
 644 #if defined(OS_ANDROID)
 645       expected_content_intent_id_(0),
 646 #endif
 647 #if defined(OS_WIN)
 648       focused_plugin_id_(-1),
 649 #endif
 650 #if defined(ENABLE_PLUGINS)
 651       plugin_find_handler_(NULL),
 652       focused_pepper_plugin_(NULL),
 653       pepper_last_mouse_event_target_(NULL),
 654 #endif
 655       enumeration_completion_id_(0),
 656       session_storage_namespace_id_(params.session_storage_namespace_id),
 657       page_scale_factor_is_one_(true) {
 658 }
 659
 660 void RenderViewImpl::Initialize(const ViewMsg_New_Params& params,
 661                                 CompositorDependencies* compositor_deps,
 662                                 bool was_created_by_renderer) {
 663   routing_id_ = params.view_id;
 664   surface_id_ = params.surface_id;
 665   if (params.opener_route_id != MSG_ROUTING_NONE && was_created_by_renderer)
 666     opener_id_ = params.opener_route_id;
 667   display_mode_= params.initial_size.display_mode;
 668
 669   // Ensure we start with a valid next_page_id_ from the browser.
 670   DCHECK_GE(next_page_id_, 0);
 671
 672   main_render_frame_ = RenderFrameImpl::Create(
 673       this, params.main_frame_routing_id);
 674   // The main frame WebLocalFrame object is closed by
 675   // RenderFrameImpl::frameDetached().
 676   WebLocalFrame* web_frame = WebLocalFrame::create(main_render_frame_);
 677   main_render_frame_->SetWebFrame(web_frame);
 678
 679   compositor_deps_ = compositor_deps;
 680   webwidget_ = WebView::create(this);
 681   webwidget_mouse_lock_target_.reset(new WebWidgetLockTarget(webwidget_));
 682
 683   const base::CommandLine& command_line =
 684       *base::CommandLine::ForCurrentProcess();
 685
 686   if (command_line.HasSwitch(switches::kStatsCollectionController))
 687     stats_collection_observer_.reset(new StatsCollectionObserver(this));
 688
 689 #if defined(OS_ANDROID)
 690   content_detectors_.push_back(linked_ptr<ContentDetector>(
 691       new AddressDetector()));
 692   const std::string& contry_iso =
 693       params.renderer_preferences.network_contry_iso;
 694   if (!contry_iso.empty()) {
 695     content_detectors_.push_back(linked_ptr<ContentDetector>(
 696         new PhoneNumberDetector(contry_iso)));
 697   }
 698   content_detectors_.push_back(linked_ptr<ContentDetector>(
 699       new EmailDetector()));
 700 #endif
 701
 702   RenderThread::Get()->AddRoute(routing_id_, this);
 703   // Take a reference on behalf of the RenderThread.  This will be balanced
 704   // when we receive ViewMsg_Close in the RenderWidget (which RenderView
 705   // inherits from).
 706   AddRef();
 707   if (RenderThreadImpl::current()) {
 708     RenderThreadImpl::current()->WidgetCreated();
 709     if (is_hidden_)
 710       RenderThreadImpl::current()->WidgetHidden();
 711   }
 712
 713   // If this is a popup, we must wait for the CreatingNew_ACK message before
 714   // completing initialization.  Otherwise, we can finish it now.
 715   if (opener_id_ == MSG_ROUTING_NONE) {
 716     did_show_ = true;
 717     CompleteInit();
 718   }
 719
 720   g_view_map.Get().insert(std::make_pair(webview(), this));
 721   g_routing_id_view_map.Get().insert(std::make_pair(routing_id_, this));
 722   webview()->setDeviceScaleFactor(device_scale_factor_);
 723   webview()->setDisplayMode(display_mode_);
 724   webview()->settings()->setPreferCompositingToLCDTextEnabled(
 725       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
 726   webview()->settings()->setThreadedScrollingEnabled(
 727       !command_line.HasSwitch(switches::kDisableThreadedScrolling));
 728   webview()->settings()->setRootLayerScrolls(
 729       command_line.HasSwitch(switches::kRootLayerScrolls));
 730
 731   ApplyWebPreferences(webkit_preferences_, webview());
 732
 733   RenderFrameProxy* proxy = NULL;
 734   if (params.proxy_routing_id != MSG_ROUTING_NONE) {
 735     CHECK(params.swapped_out);
 736     proxy = RenderFrameProxy::CreateProxyToReplaceFrame(
 737         main_render_frame_, params.proxy_routing_id);
 738     main_render_frame_->set_render_frame_proxy(proxy);
 739   }
 740
 741   // In --site-per-process, just use the WebRemoteFrame as the main frame.
 742   if (command_line.HasSwitch(switches::kSitePerProcess) && proxy) {
 743     webview()->setMainFrame(proxy->web_frame());
 744     // Initialize the WebRemoteFrame with information replicated from the
 745     // browser process.
 746     proxy->SetReplicatedState(params.replicated_frame_state);
 747   } else {
 748     webview()->setMainFrame(main_render_frame_->GetWebFrame());
 749   }
 750   main_render_frame_->Initialize();
 751
 752   if (switches::IsTouchDragDropEnabled())
 753     webview()->settings()->setTouchDragDropEnabled(true);
 754
 755   if (switches::IsTouchEditingEnabled())
 756     webview()->settings()->setTouchEditingEnabled(true);
 757
 758 #if defined(OS_ANDROID)
 759   WebSettings::SelectionStrategyType selection_strategy_default =
 760       WebSettings::SelectionStrategyType::Direction;
 761 #else
 762   WebSettings::SelectionStrategyType selection_strategy_default =
 763       WebSettings::SelectionStrategyType::Character;
 764 #endif
 765
 766   WebSettings::SelectionStrategyType selection_strategy =
 767       selection_strategy_default;
 768   const std::string selection_strategy_str =
 769       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
 770           switches::kTouchTextSelectionStrategy);
 771   if (selection_strategy_str == "character")
 772     selection_strategy = WebSettings::SelectionStrategyType::Character;
 773   else if (selection_strategy_str == "direction")
 774     selection_strategy = WebSettings::SelectionStrategyType::Direction;
 775   webview()->settings()->setSelectionStrategy(selection_strategy);
 776
 777   if (!params.frame_name.empty())
 778     webview()->mainFrame()->setName(params.frame_name);
 779
 780   // TODO(davidben): Move this state from Blink into content.
 781   if (params.window_was_created_with_opener)
 782     webview()->setOpenedByDOM();
 783
 784   OnSetRendererPrefs(params.renderer_preferences);
 785
 786   ApplyBlinkSettings(command_line, webview()->settings());
 787
 788   if (!params.enable_auto_resize) {
 789     OnResize(params.initial_size);
 790   } else {
 791     OnEnableAutoResize(params.min_size, params.max_size);
 792   }
 793
 794   new MHTMLGenerator(this);
 795 #if defined(OS_MACOSX)
 796   new TextInputClientObserver(this);
 797 #endif  // defined(OS_MACOSX)
 798
 799   // The next group of objects all implement RenderViewObserver, so are deleted
 800   // along with the RenderView automatically.
 801   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
 802
 803   history_controller_.reset(new HistoryController(this));
 804
 805   new IdleUserDetector(this);
 806
 807   if (command_line.HasSwitch(switches::kDomAutomationController))
 808     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
 809   if (command_line.HasSwitch(switches::kStatsCollectionController))
 810     enabled_bindings_ |= BINDINGS_POLICY_STATS_COLLECTION;
 811
 812   GetContentClient()->renderer()->RenderViewCreated(this);
 813
 814   // If we have an opener_id but we weren't created by a renderer, then
 815   // it's the browser asking us to set our opener to another RenderView.
 816   if (params.opener_route_id != MSG_ROUTING_NONE && !was_created_by_renderer) {
 817     RenderViewImpl* opener_view = FromRoutingID(params.opener_route_id);
 818     if (opener_view)
 819       webview()->mainFrame()->setOpener(opener_view->webview()->mainFrame());
 820   }
 821
 822   // If we are initially swapped out, navigate to kSwappedOutURL.
 823   // This ensures we are in a unique origin that others cannot script.
 824   if (is_swapped_out_ && webview()->mainFrame()->isWebLocalFrame())
 825     main_render_frame_->NavigateToSwappedOutURL();
 826 }
 827
 828 RenderViewImpl::~RenderViewImpl() {
 829   for (BitmapMap::iterator it = disambiguation_bitmaps_.begin();
 830        it != disambiguation_bitmaps_.end();
 831        ++it)
 832     delete it->second;
 833   base::trace_event::TraceLog::GetInstance()->RemoveProcessLabel(routing_id_);
 834
 835   // If file chooser is still waiting for answer, dispatch empty answer.
 836   while (!file_chooser_completions_.empty()) {
 837     if (file_chooser_completions_.front()->completion) {
 838       file_chooser_completions_.front()->completion->didChooseFile(
 839           WebVector<WebString>());
 840     }
 841     file_chooser_completions_.pop_front();
 842   }
 843
 844 #if defined(OS_ANDROID)
 845   // The date/time picker client is both a scoped_ptr member of this class and
 846   // a RenderViewObserver. Reset it to prevent double deletion.
 847   date_time_picker_client_.reset();
 848 #endif
 849
 850 #ifndef NDEBUG
 851   // Make sure we are no longer referenced by the ViewMap or RoutingIDViewMap.
 852   ViewMap* views = g_view_map.Pointer();
 853   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
 854     DCHECK_NE(this, it->second) << "Failed to call Close?";
 855   RoutingIDViewMap* routing_id_views = g_routing_id_view_map.Pointer();
 856   for (RoutingIDViewMap::iterator it = routing_id_views->begin();
 857        it != routing_id_views->end(); ++it)
 858     DCHECK_NE(this, it->second) << "Failed to call Close?";
 859 #endif
 860
 861   FOR_EACH_OBSERVER(RenderViewObserver, observers_, RenderViewGone());
 862   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnDestruct());
 863 }
 864
 865 /*static*/
 866 RenderViewImpl* RenderViewImpl::FromWebView(WebView* webview) {
 867   ViewMap* views = g_view_map.Pointer();
 868   ViewMap::iterator it = views->find(webview);
 869   return it == views->end() ? NULL : it->second;
 870 }
 871
 872 /*static*/
 873 RenderView* RenderView::FromWebView(blink::WebView* webview) {
 874   return RenderViewImpl::FromWebView(webview);
 875 }
 876
 877 /*static*/
 878 RenderViewImpl* RenderViewImpl::FromRoutingID(int32 routing_id) {
 879   RoutingIDViewMap* views = g_routing_id_view_map.Pointer();
 880   RoutingIDViewMap::iterator it = views->find(routing_id);
 881   return it == views->end() ? NULL : it->second;
 882 }
 883
 884 /*static*/
 885 RenderView* RenderView::FromRoutingID(int routing_id) {
 886   return RenderViewImpl::FromRoutingID(routing_id);
 887 }
 888
 889 /* static */
 890 size_t RenderViewImpl::GetRenderViewCount() {
 891   return g_view_map.Get().size();
 892 }
 893
 894 /*static*/
 895 void RenderView::ForEach(RenderViewVisitor* visitor) {
 896   ViewMap* views = g_view_map.Pointer();
 897   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it) {
 898     if (!visitor->Visit(it->second))
 899       return;
 900   }
 901 }
 902
 903 /*static*/
 904 void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
 905                                      WebView* web_view) {
 906   WebSettings* settings = web_view->settings();
 907   ApplyFontsFromMap(prefs.standard_font_family_map,
 908                     SetStandardFontFamilyWrapper, settings);
 909   ApplyFontsFromMap(prefs.fixed_font_family_map,
 910                     SetFixedFontFamilyWrapper, settings);
 911   ApplyFontsFromMap(prefs.serif_font_family_map,
 912                     SetSerifFontFamilyWrapper, settings);
 913   ApplyFontsFromMap(prefs.sans_serif_font_family_map,
 914                     SetSansSerifFontFamilyWrapper, settings);
 915   ApplyFontsFromMap(prefs.cursive_font_family_map,
 916                     SetCursiveFontFamilyWrapper, settings);
 917   ApplyFontsFromMap(prefs.fantasy_font_family_map,
 918                     SetFantasyFontFamilyWrapper, settings);
 919   ApplyFontsFromMap(prefs.pictograph_font_family_map,
 920                     SetPictographFontFamilyWrapper, settings);
 921   settings->setDefaultFontSize(prefs.default_font_size);
 922   settings->setDefaultFixedFontSize(prefs.default_fixed_font_size);
 923   settings->setMinimumFontSize(prefs.minimum_font_size);
 924   settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
 925   settings->setDefaultTextEncodingName(
 926       base::ASCIIToUTF16(prefs.default_encoding));
 927   settings->setJavaScriptEnabled(prefs.javascript_enabled);
 928   settings->setWebSecurityEnabled(prefs.web_security_enabled);
 929   settings->setJavaScriptCanOpenWindowsAutomatically(
 930       prefs.javascript_can_open_windows_automatically);
 931   settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
 932   settings->setImagesEnabled(prefs.images_enabled);
 933   settings->setPluginsEnabled(prefs.plugins_enabled);
 934   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
 935   settings->setUsesEncodingDetector(prefs.uses_universal_detector);
 936   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
 937   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
 938   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
 939   settings->setJavaScriptCanAccessClipboard(
 940       prefs.javascript_can_access_clipboard);
 941   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
 942   WebRuntimeFeatures::enableSlimmingPaint(prefs.slimming_paint_enabled);
 943   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
 944   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
 945   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
 946   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
 947   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
 948   settings->setOfflineWebApplicationCacheEnabled(
 949       prefs.application_cache_enabled);
 950   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
 951   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
 952   settings->setCookieEnabled(prefs.cookie_enabled);
 953   settings->setNavigateOnDragDrop(prefs.navigate_on_drag_drop);
 954
 955   settings->setJavaEnabled(prefs.java_enabled);
 956
 957   // By default, allow_universal_access_from_file_urls is set to false and thus
 958   // we mitigate attacks from local HTML files by not granting file:// URLs
 959   // universal access. Only test shell will enable this.
 960   settings->setAllowUniversalAccessFromFileURLs(
 961       prefs.allow_universal_access_from_file_urls);
 962   settings->setAllowFileAccessFromFileURLs(
 963       prefs.allow_file_access_from_file_urls);
 964
 965   // Enable the web audio API if requested on the command line.
 966   settings->setWebAudioEnabled(prefs.webaudio_enabled);
 967
 968   // Enable experimental WebGL support if requested on command line
 969   // and support is compiled in.
 970   settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled);
 971
 972   // Disable GL multisampling if requested on command line.
 973   settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled);
 974
 975   // Enable WebGL errors to the JS console if requested.
 976   settings->setWebGLErrorsToConsoleEnabled(
 977       prefs.webgl_errors_to_console_enabled);
 978
 979   // Uses the mock theme engine for scrollbars.
 980   settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled);
 981
 982   // Enable gpu-accelerated 2d canvas if requested on the command line.
 983   settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled);
 984
 985   settings->setMinimumAccelerated2dCanvasSize(
 986       prefs.minimum_accelerated_2d_canvas_size);
 987
 988   // Disable antialiasing for 2d canvas if requested on the command line.
 989   settings->setAntialiased2dCanvasEnabled(
 990       !prefs.antialiased_2d_canvas_disabled);
 991
 992   // Enabled antialiasing of clips for 2d canvas if requested on the command
 993   // line.
 994   settings->setAntialiasedClips2dCanvasEnabled(
 995       prefs.antialiased_clips_2d_canvas_enabled);
 996
 997   // Set MSAA sample count for 2d canvas if requested on the command line (or
 998   // default value if not).
 999   settings->setAccelerated2dCanvasMSAASampleCount(
1000       prefs.accelerated_2d_canvas_msaa_sample_count);
1001
1002   WebRuntimeFeatures::enableTextBlobs(prefs.text_blobs_enabled);
1003
1004   settings->setAsynchronousSpellCheckingEnabled(
1005       prefs.asynchronous_spell_checking_enabled);
1006   settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled);
1007
1008   // Tabs to link is not part of the settings. WebCore calls
1009   // ChromeClient::tabsToLinks which is part of the glue code.
1010   web_view->setTabsToLinks(prefs.tabs_to_links);
1011
1012   settings->setAllowDisplayOfInsecureContent(
1013       prefs.allow_displaying_insecure_content);
1014   settings->setAllowRunningOfInsecureContent(
1015       prefs.allow_running_insecure_content);
1016   settings->setDisableReadingFromCanvas(prefs.disable_reading_from_canvas);
1017   settings->setStrictMixedContentChecking(prefs.strict_mixed_content_checking);
1018   settings->setStrictPowerfulFeatureRestrictions(
1019       prefs.strict_powerful_feature_restrictions);
1020   settings->setPasswordEchoEnabled(prefs.password_echo_enabled);
1021   settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds);
1022   settings->setShouldClearDocumentBackground(
1023       prefs.should_clear_document_background);
1024   settings->setEnableScrollAnimator(prefs.enable_scroll_animator);
1025
1026   settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled);
1027
1028   WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
1029   settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
1030   settings->setAvailablePointerTypes(prefs.available_pointer_types);
1031   settings->setPrimaryPointerType(
1032       static_cast<WebSettings::PointerType>(prefs.primary_pointer_type));
1033   settings->setAvailableHoverTypes(prefs.available_hover_types);
1034   settings->setPrimaryHoverType(
1035       static_cast<WebSettings::HoverType>(prefs.primary_hover_type));
1036   settings->setDeviceSupportsTouch(prefs.device_supports_touch);
1037   settings->setDeviceSupportsMouse(prefs.device_supports_mouse);
1038   settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled);
1039   settings->setMultiTargetTapNotificationEnabled(
1040       switches::IsLinkDisambiguationPopupEnabled());
1041
1042   settings->setDeferredImageDecodingEnabled(
1043       prefs.deferred_image_decoding_enabled);
1044   WebRuntimeFeatures::enableImageColorProfiles(
1045       prefs.image_color_profiles_enabled);
1046   settings->setShouldRespectImageOrientation(
1047       prefs.should_respect_image_orientation);
1048
1049   settings->setUnsafePluginPastingEnabled(false);
1050   settings->setEditingBehavior(
1051       static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior));
1052
1053   settings->setSupportsMultipleWindows(prefs.supports_multiple_windows);
1054
1055   settings->setViewportEnabled(prefs.viewport_enabled);
1056   settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale);
1057   settings->setViewportMetaEnabled(prefs.viewport_meta_enabled);
1058   settings->setMainFrameResizesAreOrientationChanges(
1059       prefs.main_frame_resizes_are_orientation_changes);
1060
1061   settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled);
1062
1063   settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
1064
1065   settings->setSelectionIncludesAltImageText(true);
1066
1067   settings->setV8CacheOptions(
1068       static_cast<WebSettings::V8CacheOptions>(prefs.v8_cache_options));
1069
1070   settings->setImageAnimationPolicy(
1071       static_cast<WebSettings::ImageAnimationPolicy>(prefs.animation_policy));
1072
1073   // Needs to happen before setIgnoreVIewportTagScaleLimits below.
1074   web_view->setDefaultPageScaleLimits(
1075       prefs.default_minimum_page_scale_factor,
1076       prefs.default_maximum_page_scale_factor);
1077
1078 #if defined(OS_ANDROID)
1079   settings->setAllowCustomScrollbarInMainFrame(false);
1080   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
1081   settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor);
1082   settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
1083   settings->setFullscreenSupported(prefs.fullscreen_supported);
1084   web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom);
1085   settings->setAutoZoomFocusedNodeToLegibleScale(true);
1086   settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled);
1087   settings->setMediaControlsOverlayPlayButtonEnabled(true);
1088   settings->setMediaPlaybackRequiresUserGesture(
1089       prefs.user_gesture_required_for_media_playback);
1090   settings->setDefaultVideoPosterURL(
1091         base::ASCIIToUTF16(prefs.default_video_poster_url.spec()));
1092   settings->setSupportDeprecatedTargetDensityDPI(
1093       prefs.support_deprecated_target_density_dpi);
1094   settings->setUseLegacyBackgroundSizeShorthandBehavior(
1095       prefs.use_legacy_background_size_shorthand_behavior);
1096   settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk);
1097   settings->setUseWideViewport(prefs.use_wide_viewport);
1098   settings->setForceZeroLayoutHeight(prefs.force_zero_layout_height);
1099   settings->setViewportMetaLayoutSizeQuirk(
1100       prefs.viewport_meta_layout_size_quirk);
1101   settings->setViewportMetaMergeContentQuirk(
1102       prefs.viewport_meta_merge_content_quirk);
1103   settings->setViewportMetaNonUserScalableQuirk(
1104       prefs.viewport_meta_non_user_scalable_quirk);
1105   settings->setViewportMetaZeroValuesQuirk(
1106       prefs.viewport_meta_zero_values_quirk);
1107   settings->setClobberUserAgentInitialScaleQuirk(
1108       prefs.clobber_user_agent_initial_scale_quirk);
1109   settings->setIgnoreMainFrameOverflowHiddenQuirk(
1110       prefs.ignore_main_frame_overflow_hidden_quirk);
1111   settings->setReportScreenSizeInPhysicalPixelsQuirk(
1112       prefs.report_screen_size_in_physical_pixels_quirk);
1113
1114   bool record_full_layer =
1115       RenderViewImpl::FromWebView(web_view)
1116           ? RenderViewImpl::FromWebView(web_view)->DoesRecordFullLayer()
1117           : false;
1118   settings->setMainFrameClipsContent(!record_full_layer);
1119
1120   settings->setShrinksViewportContentToFit(true);
1121   settings->setUseMobileViewportStyle(true);
1122 #endif
1123
1124   WebNetworkStateNotifier::setOnLine(prefs.is_online);
1125   WebNetworkStateNotifier::setWebConnectionType(
1126       NetConnectionTypeToWebConnectionType(prefs.connection_type));
1127   settings->setPinchVirtualViewportEnabled(
1128       prefs.pinch_virtual_viewport_enabled);
1129
1130   settings->setPinchOverlayScrollbarThickness(
1131       prefs.pinch_overlay_scrollbar_thickness);
1132   settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars);
1133
1134   settings->setShowContextMenuOnMouseUp(prefs.context_menu_on_mouse_up);
1135
1136 #if defined(OS_MACOSX)
1137   settings->setDoubleTapToZoomEnabled(true);
1138   web_view->setMaximumLegibleScale(prefs.default_maximum_page_scale_factor);
1139 #endif
1140 }
1141
1142 /*static*/
1143 RenderViewImpl* RenderViewImpl::Create(const ViewMsg_New_Params& params,
1144                                        CompositorDependencies* compositor_deps,
1145                                        bool was_created_by_renderer) {
1146   DCHECK(params.view_id != MSG_ROUTING_NONE);
1147   RenderViewImpl* render_view = NULL;
1148   if (g_create_render_view_impl)
1149     render_view = g_create_render_view_impl(params);
1150   else
1151     render_view = new RenderViewImpl(params);
1152
1153   render_view->Initialize(params, compositor_deps, was_created_by_renderer);
1154   return render_view;
1155 }
1156
1157 // static
1158 void RenderViewImpl::InstallCreateHook(
1159     RenderViewImpl* (*create_render_view_impl)(const ViewMsg_New_Params&)) {
1160   CHECK(!g_create_render_view_impl);
1161   g_create_render_view_impl = create_render_view_impl;
1162 }
1163
1164 void RenderViewImpl::AddObserver(RenderViewObserver* observer) {
1165   observers_.AddObserver(observer);
1166 }
1167
1168 void RenderViewImpl::RemoveObserver(RenderViewObserver* observer) {
1169   observer->RenderViewGone();
1170   observers_.RemoveObserver(observer);
1171 }
1172
1173 blink::WebView* RenderViewImpl::webview() const {
1174   return static_cast<blink::WebView*>(webwidget());
1175 }
1176
1177 #if defined(ENABLE_PLUGINS)
1178 void RenderViewImpl::PepperInstanceCreated(
1179     PepperPluginInstanceImpl* instance) {
1180   active_pepper_instances_.insert(instance);
1181 }
1182
1183 void RenderViewImpl::PepperInstanceDeleted(
1184     PepperPluginInstanceImpl* instance) {
1185   active_pepper_instances_.erase(instance);
1186
1187   if (pepper_last_mouse_event_target_ == instance)
1188     pepper_last_mouse_event_target_ = NULL;
1189   if (focused_pepper_plugin_ == instance)
1190     PepperFocusChanged(instance, false);
1191 }
1192
1193 void RenderViewImpl::PepperFocusChanged(PepperPluginInstanceImpl* instance,
1194                                         bool focused) {
1195   if (focused)
1196     focused_pepper_plugin_ = instance;
1197   else if (focused_pepper_plugin_ == instance)
1198     focused_pepper_plugin_ = NULL;
1199
1200   UpdateTextInputType();
1201   UpdateSelectionBounds();
1202 }
1203
1204 void RenderViewImpl::RegisterPluginDelegate(WebPluginDelegateProxy* delegate) {
1205   plugin_delegates_.insert(delegate);
1206   // If the renderer is visible, set initial visibility and focus state.
1207   if (!is_hidden()) {
1208 #if defined(OS_MACOSX)
1209     delegate->SetContainerVisibility(true);
1210     if (webview() && webview()->isActive())
1211       delegate->SetWindowFocus(true);
1212 #endif
1213   }
1214   // Plugins start assuming the content has focus (so that they work in
1215   // environments where RenderView isn't hosting them), so we always have to
1216   // set the initial state. See webplugin_delegate_impl.h for details.
1217   delegate->SetContentAreaFocus(has_focus());
1218 }
1219
1220 void RenderViewImpl::UnregisterPluginDelegate(
1221     WebPluginDelegateProxy* delegate) {
1222   plugin_delegates_.erase(delegate);
1223 }
1224
1225 #if defined(OS_WIN)
1226 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1227   if (focused)
1228     focused_plugin_id_ = plugin_id;
1229   else
1230     focused_plugin_id_ = -1;
1231 }
1232 #endif
1233
1234 #if defined(OS_MACOSX)
1235 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1236   Send(new ViewHostMsg_PluginFocusChanged(routing_id(), focused, plugin_id));
1237 }
1238
1239 void RenderViewImpl::OnGetRenderedText() {
1240   if (!webview())
1241     return;
1242   // Get rendered text from WebLocalFrame.
1243   // TODO: Currently IPC truncates any data that has a
1244   // size > kMaximumMessageSize. May be split the text into smaller chunks and
1245   // send back using multiple IPC. See http://crbug.com/393444.
1246   static const size_t kMaximumMessageSize = 8 * 1024 * 1024;
1247   std::string text = webview()->mainFrame()->contentAsText(
1248       kMaximumMessageSize).utf8();
1249
1250   Send(new ViewMsg_GetRenderedTextCompleted(routing_id(), text));
1251 }
1252
1253 void RenderViewImpl::StartPluginIme() {
1254   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
1255   // This message can be sent during event-handling, and needs to be delivered
1256   // within that context.
1257   msg->set_unblock(true);
1258   Send(msg);
1259 }
1260 #endif  // defined(OS_MACOSX)
1261
1262 #endif  // ENABLE_PLUGINS
1263
1264 void RenderViewImpl::TransferActiveWheelFlingAnimation(
1265     const blink::WebActiveWheelFlingParameters& params) {
1266   if (webview())
1267     webview()->transferActiveWheelFlingAnimation(params);
1268 }
1269
1270 bool RenderViewImpl::HasIMETextFocus() {
1271   return GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE;
1272 }
1273
1274 bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
1275   WebFrame* main_frame = webview() ? webview()->mainFrame() : NULL;
1276   if (main_frame && main_frame->isWebLocalFrame())
1277     GetContentClient()->SetActiveURL(main_frame->document().url());
1278
1279   ObserverListBase<RenderViewObserver>::Iterator it(&observers_);
1280   RenderViewObserver* observer;
1281   while ((observer = it.GetNext()) != NULL)
1282     if (observer->OnMessageReceived(message))
1283       return true;
1284
1285   bool handled = true;
1286   IPC_BEGIN_MESSAGE_MAP(RenderViewImpl, message)
1287     IPC_MESSAGE_HANDLER(InputMsg_ExecuteEditCommand, OnExecuteEditCommand)
1288     IPC_MESSAGE_HANDLER(InputMsg_MoveCaret, OnMoveCaret)
1289     IPC_MESSAGE_HANDLER(InputMsg_ScrollFocusedEditableNodeIntoRect,
1290                         OnScrollFocusedEditableNodeIntoRect)
1291     IPC_MESSAGE_HANDLER(InputMsg_SetEditCommandsForNextKeyEvent,
1292                         OnSetEditCommandsForNextKeyEvent)
1293     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
1294     IPC_MESSAGE_HANDLER(ViewMsg_SaveImageAt, OnSaveImageAt)
1295     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
1296     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
1297     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageScale, OnResetPageScale)
1298     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
1299     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
1300                         OnSetZoomLevelForLoadingURL)
1301     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForView,
1302                         OnSetZoomLevelForView)
1303     IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
1304     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
1305                         OnResetPageEncodingToDefault)
1306     IPC_MESSAGE_HANDLER(DragMsg_TargetDragEnter, OnDragTargetDragEnter)
1307     IPC_MESSAGE_HANDLER(DragMsg_TargetDragOver, OnDragTargetDragOver)
1308     IPC_MESSAGE_HANDLER(DragMsg_TargetDragLeave, OnDragTargetDragLeave)
1309     IPC_MESSAGE_HANDLER(DragMsg_TargetDrop, OnDragTargetDrop)
1310     IPC_MESSAGE_HANDLER(DragMsg_SourceEnded, OnDragSourceEnded)
1311     IPC_MESSAGE_HANDLER(DragMsg_SourceSystemDragEnded,
1312                         OnDragSourceSystemDragEnded)
1313     IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
1314     IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
1315     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
1316     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
1317     IPC_MESSAGE_HANDLER(ViewMsg_EnumerateDirectoryResponse,
1318                         OnEnumerateDirectoryResponse)
1319     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
1320     IPC_MESSAGE_HANDLER(ViewMsg_SuppressDialogsUntilSwapOut,
1321                         OnSuppressDialogsUntilSwapOut)
1322     IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
1323     IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
1324     IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
1325     IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedElement, OnClearFocusedElement)
1326     IPC_MESSAGE_HANDLER(ViewMsg_SetBackgroundOpaque, OnSetBackgroundOpaque)
1327     IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
1328                         OnEnablePreferredSizeChangedMode)
1329     IPC_MESSAGE_HANDLER(ViewMsg_EnableAutoResize, OnEnableAutoResize)
1330     IPC_MESSAGE_HANDLER(ViewMsg_DisableAutoResize, OnDisableAutoResize)
1331     IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
1332                         OnDisableScrollbarsForSmallWindows)
1333     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
1334     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
1335     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
1336     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
1337     IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
1338                         OnGetAllSavableResourceLinksForCurrentPage)
1339     IPC_MESSAGE_HANDLER(
1340         ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
1341         OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
1342     IPC_MESSAGE_HANDLER(ViewMsg_ShowContextMenu, OnShowContextMenu)
1343     // TODO(viettrungluu): Move to a separate message filter.
1344     IPC_MESSAGE_HANDLER(ViewMsg_SetHistoryOffsetAndLength,
1345                         OnSetHistoryOffsetAndLength)
1346     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
1347     IPC_MESSAGE_HANDLER(ViewMsg_ReleaseDisambiguationPopupBitmap,
1348                         OnReleaseDisambiguationPopupBitmap)
1349     IPC_MESSAGE_HANDLER(ViewMsg_ForceRedraw, OnForceRedraw)
1350     IPC_MESSAGE_HANDLER(ViewMsg_SelectWordAroundCaret, OnSelectWordAroundCaret)
1351 #if defined(OS_ANDROID)
1352     IPC_MESSAGE_HANDLER(InputMsg_ActivateNearestFindResult,
1353                         OnActivateNearestFindResult)
1354     IPC_MESSAGE_HANDLER(ViewMsg_FindMatchRects, OnFindMatchRects)
1355     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTopControlsState,
1356                         OnUpdateTopControlsState)
1357     IPC_MESSAGE_HANDLER(ViewMsg_ExtractSmartClipData, OnExtractSmartClipData)
1358 #elif defined(OS_MACOSX)
1359     IPC_MESSAGE_HANDLER(ViewMsg_GetRenderedText,
1360                         OnGetRenderedText)
1361     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
1362                         OnPluginImeCompositionCompleted)
1363     IPC_MESSAGE_HANDLER(ViewMsg_Close, OnClose)
1364     IPC_MESSAGE_HANDLER(ViewMsg_SetInLiveResize, OnSetInLiveResize)
1365     IPC_MESSAGE_HANDLER(ViewMsg_SetWindowVisibility, OnSetWindowVisibility)
1366     IPC_MESSAGE_HANDLER(ViewMsg_WindowFrameChanged, OnWindowFrameChanged)
1367 #endif
1368     // Adding a new message? Add platform independent ones first, then put the
1369     // platform specific ones at the end.
1370
1371     // Have the super handle all other messages.
1372     IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
1373   IPC_END_MESSAGE_MAP()
1374
1375   return handled;
1376 }
1377
1378 void RenderViewImpl::OnSelectWordAroundCaret() {
1379   if (!webview())
1380     return;
1381
1382   handling_input_event_ = true;
1383   webview()->focusedFrame()->selectWordAroundCaret();
1384   handling_input_event_ = false;
1385 }
1386
1387 void RenderViewImpl::OnCopyImageAt(int x, int y) {
1388   webview()->copyImageAt(WebPoint(x, y));
1389 }
1390
1391 void RenderViewImpl::OnSaveImageAt(int x, int y) {
1392   webview()->saveImageAt(WebPoint(x, y));
1393 }
1394
1395 void RenderViewImpl::OnUpdateTargetURLAck() {
1396   // Check if there is a targeturl waiting to be sent.
1397   if (target_url_status_ == TARGET_PENDING)
1398     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, pending_target_url_));
1399
1400   target_url_status_ = TARGET_NONE;
1401 }
1402
1403 void RenderViewImpl::OnExecuteEditCommand(const std::string& name,
1404     const std::string& value) {
1405   if (!webview() || !webview()->focusedFrame())
1406     return;
1407
1408   webview()->focusedFrame()->executeCommand(
1409       WebString::fromUTF8(name), WebString::fromUTF8(value));
1410 }
1411
1412 void RenderViewImpl::OnMoveCaret(const gfx::Point& point) {
1413   if (!webview())
1414     return;
1415
1416   Send(new InputHostMsg_MoveCaret_ACK(routing_id_));
1417
1418   webview()->focusedFrame()->moveCaretSelection(point);
1419 }
1420
1421 void RenderViewImpl::OnScrollFocusedEditableNodeIntoRect(
1422     const gfx::Rect& rect) {
1423   if (has_scrolled_focused_editable_node_into_rect_ &&
1424       rect == rect_for_scrolled_focused_editable_node_) {
1425     FocusChangeComplete();
1426     return;
1427   }
1428
1429   blink::WebElement element = GetFocusedElement();
1430   bool will_animate = false;
1431   if (!element.isNull() && IsEditableNode(element)) {
1432     rect_for_scrolled_focused_editable_node_ = rect;
1433     has_scrolled_focused_editable_node_into_rect_ = true;
1434     will_animate = webview()->scrollFocusedNodeIntoRect(rect);
1435   }
1436
1437   if (!will_animate)
1438     FocusChangeComplete();
1439 }
1440
1441 void RenderViewImpl::OnSetEditCommandsForNextKeyEvent(
1442     const EditCommands& edit_commands) {
1443   edit_commands_ = edit_commands;
1444 }
1445
1446 void RenderViewImpl::OnSetHistoryOffsetAndLength(int history_offset,
1447                                                  int history_length) {
1448   DCHECK_GE(history_offset, -1);
1449   DCHECK_GE(history_length, 0);
1450
1451   history_list_offset_ = history_offset;
1452   history_list_length_ = history_length;
1453 }
1454
1455 void RenderViewImpl::OnSetInitialFocus(bool reverse) {
1456   if (!webview())
1457     return;
1458   webview()->setInitialFocus(reverse);
1459 }
1460
1461 #if defined(OS_MACOSX)
1462 void RenderViewImpl::OnSetInLiveResize(bool in_live_resize) {
1463   if (!webview())
1464     return;
1465   if (in_live_resize)
1466     webview()->willStartLiveResize();
1467   else
1468     webview()->willEndLiveResize();
1469 }
1470 #endif
1471
1472 ///////////////////////////////////////////////////////////////////////////////
1473
1474 // Sends the current history state to the browser so it will be saved before we
1475 // navigate to a new page.
1476 void RenderViewImpl::UpdateSessionHistory(WebFrame* frame) {
1477   // If we have a valid page ID at this point, then it corresponds to the page
1478   // we are navigating away from.  Otherwise, this is the first navigation, so
1479   // there is no past session history to record.
1480   if (page_id_ == -1)
1481     return;
1482   SendUpdateState(history_controller_->GetCurrentEntry());
1483 }
1484
1485 void RenderViewImpl::SendUpdateState(HistoryEntry* entry) {
1486   if (!entry)
1487     return;
1488
1489   // Don't send state updates for kSwappedOutURL.
1490   if (entry->root().urlString() == WebString::fromUTF8(kSwappedOutURL))
1491     return;
1492
1493   Send(new ViewHostMsg_UpdateState(
1494       routing_id_, page_id_, HistoryEntryToPageState(entry)));
1495 }
1496
1497 bool RenderViewImpl::SendAndRunNestedMessageLoop(IPC::SyncMessage* message) {
1498   // Before WebKit asks us to show an alert (etc.), it takes care of doing the
1499   // equivalent of WebView::willEnterModalLoop.  In the case of showModalDialog
1500   // it is particularly important that we do not call willEnterModalLoop as
1501   // that would defer resource loads for the dialog itself.
1502   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
1503     RenderThreadImpl::current()->DoNotNotifyWebKitOfModalLoop();
1504
1505   message->EnableMessagePumping();  // Runs a nested message loop.
1506   return Send(message);
1507 }
1508
1509 void RenderViewImpl::OnForceRedraw(int id) {
1510   ui::LatencyInfo latency_info;
1511   if (id) {
1512     latency_info.AddLatencyNumber(ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1513                                   0,
1514                                   id);
1515   }
1516   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1517   if (RenderWidgetCompositor* rwc = compositor()) {
1518     latency_info_swap_promise_monitor =
1519         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1520   }
1521   ScheduleCompositeWithForcedRedraw();
1522 }
1523
1524 // blink::WebViewClient ------------------------------------------------------
1525
1526 WebView* RenderViewImpl::createView(WebLocalFrame* creator,
1527                                     const WebURLRequest& request,
1528                                     const WebWindowFeatures& features,
1529                                     const WebString& frame_name,
1530                                     WebNavigationPolicy policy,
1531                                     bool suppress_opener) {
1532   ViewHostMsg_CreateWindow_Params params;
1533   params.opener_id = routing_id_;
1534   params.user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
1535   if (GetContentClient()->renderer()->AllowPopup())
1536     params.user_gesture = true;
1537   params.window_container_type = WindowFeaturesToContainerType(features);
1538   params.session_storage_namespace_id = session_storage_namespace_id_;
1539   if (frame_name != "_blank")
1540     params.frame_name = frame_name;
1541   params.opener_render_frame_id =
1542       RenderFrameImpl::FromWebFrame(creator)->GetRoutingID();
1543   params.opener_url = creator->document().url();
1544   params.opener_top_level_frame_url = creator->top()->document().url();
1545   GURL security_url(creator->document().securityOrigin().toString());
1546   if (!security_url.is_valid())
1547     security_url = GURL();
1548   params.opener_security_origin = security_url;
1549   params.opener_suppressed = suppress_opener;
1550   params.disposition = NavigationPolicyToDisposition(policy);
1551   if (!request.isNull()) {
1552     params.target_url = request.url();
1553     params.referrer = GetReferrerFromRequest(creator, request);
1554   }
1555   params.features = features;
1556
1557   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
1558     params.additional_features.push_back(features.additionalFeatures[i]);
1559
1560   int32 routing_id = MSG_ROUTING_NONE;
1561   int32 main_frame_routing_id = MSG_ROUTING_NONE;
1562   int32 surface_id = 0;
1563   int64 cloned_session_storage_namespace_id = 0;
1564
1565   RenderThread::Get()->Send(new ViewHostMsg_CreateWindow(
1566       params, &routing_id, &main_frame_routing_id, &surface_id,
1567       &cloned_session_storage_namespace_id));
1568   if (routing_id == MSG_ROUTING_NONE)
1569     return NULL;
1570
1571   WebUserGestureIndicator::consumeUserGesture();
1572
1573   // While this view may be a background extension page, it can spawn a visible
1574   // render view. So we just assume that the new one is not another background
1575   // page instead of passing on our own value.
1576   // TODO(vangelis): Can we tell if the new view will be a background page?
1577   bool never_visible = false;
1578
1579   ViewMsg_Resize_Params initial_size = ViewMsg_Resize_Params();
1580   initial_size.screen_info = screen_info_;
1581
1582   // The initial hidden state for the RenderViewImpl here has to match what the
1583   // browser will eventually decide for the given disposition. Since we have to
1584   // return from this call synchronously, we just have to make our best guess
1585   // and rely on the browser sending a WasHidden / WasShown message if it
1586   // disagrees.
1587   ViewMsg_New_Params view_params;
1588   view_params.opener_route_id = routing_id_;
1589   view_params.window_was_created_with_opener = true;
1590   view_params.renderer_preferences = renderer_preferences_;
1591   view_params.web_preferences = webkit_preferences_;
1592   view_params.view_id = routing_id;
1593   view_params.main_frame_routing_id = main_frame_routing_id;
1594   view_params.surface_id = surface_id;
1595   view_params.session_storage_namespace_id =
1596       cloned_session_storage_namespace_id;
1597   // WebCore will take care of setting the correct name.
1598   view_params.frame_name = base::string16();
1599   view_params.swapped_out = false;
1600   view_params.replicated_frame_state = FrameReplicationState();
1601   view_params.proxy_routing_id = MSG_ROUTING_NONE;
1602   view_params.hidden = (params.disposition == NEW_BACKGROUND_TAB);
1603   view_params.never_visible = never_visible;
1604   view_params.next_page_id = 1;
1605   view_params.initial_size = initial_size;
1606   view_params.enable_auto_resize = false;
1607   view_params.min_size = gfx::Size();
1608   view_params.max_size = gfx::Size();
1609
1610   RenderViewImpl* view =
1611       RenderViewImpl::Create(view_params, compositor_deps_, true);
1612   view->opened_by_user_gesture_ = params.user_gesture;
1613
1614   // Record whether the creator frame is trying to suppress the opener field.
1615   view->opener_suppressed_ = params.opener_suppressed;
1616
1617   return view->webview();
1618 }
1619
1620 WebWidget* RenderViewImpl::createPopupMenu(blink::WebPopupType popup_type) {
1621   RenderWidget* widget = RenderWidget::Create(routing_id_, compositor_deps_,
1622                                               popup_type, screen_info_);
1623   if (!widget)
1624     return NULL;
1625   if (screen_metrics_emulator_) {
1626     widget->SetPopupOriginAdjustmentsForEmulation(
1627         screen_metrics_emulator_.get());
1628   }
1629   return widget->webwidget();
1630 }
1631
1632 WebStorageNamespace* RenderViewImpl::createSessionStorageNamespace() {
1633   CHECK(session_storage_namespace_id_ != kInvalidSessionStorageNamespaceId);
1634   return new WebStorageNamespaceImpl(session_storage_namespace_id_);
1635 }
1636
1637 void RenderViewImpl::printPage(WebLocalFrame* frame) {
1638   FOR_EACH_OBSERVER(RenderViewObserver, observers_,
1639                     PrintPage(frame, handling_input_event_));
1640 }
1641
1642 void RenderViewImpl::saveImageFromDataURL(const blink::WebString& data_url) {
1643   // Note: We should basically send GURL but we use size-limited string instead
1644   // in order to send a larger data url to save a image for <canvas> or <img>.
1645   if (data_url.length() < kMaxLengthOfDataURLString)
1646     Send(new ViewHostMsg_SaveImageFromDataURL(routing_id_, data_url.utf8()));
1647 }
1648
1649 bool RenderViewImpl::enumerateChosenDirectory(
1650     const WebString& path,
1651     WebFileChooserCompletion* chooser_completion) {
1652   int id = enumeration_completion_id_++;
1653   enumeration_completions_[id] = chooser_completion;
1654   return Send(new ViewHostMsg_EnumerateDirectory(
1655       routing_id_,
1656       id,
1657       base::FilePath::FromUTF16Unsafe(path)));
1658 }
1659
1660 void RenderViewImpl::FrameDidStartLoading(WebFrame* frame) {
1661   DCHECK_GE(frames_in_progress_, 0);
1662   if (frames_in_progress_ == 0)
1663     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStartLoading());
1664   frames_in_progress_++;
1665 }
1666
1667 void RenderViewImpl::FrameDidStopLoading(WebFrame* frame) {
1668   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
1669   // calls DidStopLoading() without a matching DidStartLoading().
1670   if (frames_in_progress_ == 0)
1671     return;
1672   frames_in_progress_--;
1673   if (frames_in_progress_ == 0) {
1674     DidStopLoadingIcons();
1675     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
1676   }
1677 }
1678
1679 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
1680   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
1681 }
1682
1683 bool RenderViewImpl::handleCurrentKeyboardEvent() {
1684   if (edit_commands_.empty())
1685     return false;
1686
1687   WebFrame* frame = webview()->focusedFrame();
1688   if (!frame)
1689     return false;
1690
1691   EditCommands::iterator it = edit_commands_.begin();
1692   EditCommands::iterator end = edit_commands_.end();
1693
1694   bool did_execute_command = false;
1695   for (; it != end; ++it) {
1696     // In gtk and cocoa, it's possible to bind multiple edit commands to one
1697     // key (but it's the exception). Once one edit command is not executed, it
1698     // seems safest to not execute the rest.
1699     if (!frame->executeCommand(WebString::fromUTF8(it->name),
1700                                WebString::fromUTF8(it->value),
1701                                GetFocusedElement()))
1702       break;
1703     did_execute_command = true;
1704   }
1705
1706   return did_execute_command;
1707 }
1708
1709 bool RenderViewImpl::runFileChooser(
1710     const blink::WebFileChooserParams& params,
1711     WebFileChooserCompletion* chooser_completion) {
1712   // Do not open the file dialog in a hidden RenderView.
1713   if (is_hidden())
1714     return false;
1715   FileChooserParams ipc_params;
1716   if (params.directory)
1717     ipc_params.mode = FileChooserParams::UploadFolder;
1718   else if (params.multiSelect)
1719     ipc_params.mode = FileChooserParams::OpenMultiple;
1720   else if (params.saveAs)
1721     ipc_params.mode = FileChooserParams::Save;
1722   else
1723     ipc_params.mode = FileChooserParams::Open;
1724   ipc_params.title = params.title;
1725   ipc_params.default_file_name =
1726       base::FilePath::FromUTF16Unsafe(params.initialValue).BaseName();
1727   ipc_params.accept_types.reserve(params.acceptTypes.size());
1728   for (size_t i = 0; i < params.acceptTypes.size(); ++i)
1729     ipc_params.accept_types.push_back(params.acceptTypes[i]);
1730   ipc_params.need_local_path = params.needLocalPath;
1731 #if defined(OS_ANDROID)
1732   ipc_params.capture = params.useMediaCapture;
1733 #endif
1734
1735   return ScheduleFileChooser(ipc_params, chooser_completion);
1736 }
1737
1738 void RenderViewImpl::SetValidationMessageDirection(
1739     base::string16* wrapped_main_text,
1740     blink::WebTextDirection main_text_hint,
1741     base::string16* wrapped_sub_text,
1742     blink::WebTextDirection sub_text_hint) {
1743   if (main_text_hint == blink::WebTextDirectionLeftToRight) {
1744     *wrapped_main_text =
1745         base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_main_text);
1746   } else if (main_text_hint == blink::WebTextDirectionRightToLeft &&
1747              !base::i18n::IsRTL()) {
1748     base::i18n::WrapStringWithRTLFormatting(wrapped_main_text);
1749   }
1750
1751   if (!wrapped_sub_text->empty()) {
1752     if (sub_text_hint == blink::WebTextDirectionLeftToRight) {
1753       *wrapped_sub_text =
1754           base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_sub_text);
1755     } else if (sub_text_hint == blink::WebTextDirectionRightToLeft) {
1756       base::i18n::WrapStringWithRTLFormatting(wrapped_sub_text);
1757     }
1758   }
1759 }
1760
1761 void RenderViewImpl::showValidationMessage(
1762     const blink::WebRect& anchor_in_root_view,
1763     const blink::WebString& main_text,
1764     blink::WebTextDirection main_text_hint,
1765     const blink::WebString& sub_text,
1766     blink::WebTextDirection sub_text_hint) {
1767   base::string16 wrapped_main_text = main_text;
1768   base::string16 wrapped_sub_text = sub_text;
1769
1770   SetValidationMessageDirection(
1771       &wrapped_main_text, main_text_hint, &wrapped_sub_text, sub_text_hint);
1772
1773   Send(new ViewHostMsg_ShowValidationMessage(
1774       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view),
1775       wrapped_main_text, wrapped_sub_text));
1776 }
1777
1778 void RenderViewImpl::hideValidationMessage() {
1779   Send(new ViewHostMsg_HideValidationMessage(routing_id()));
1780 }
1781
1782 void RenderViewImpl::moveValidationMessage(
1783     const blink::WebRect& anchor_in_root_view) {
1784   Send(new ViewHostMsg_MoveValidationMessage(
1785       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view)));
1786 }
1787
1788 void RenderViewImpl::setStatusText(const WebString& text) {
1789 }
1790
1791 void RenderViewImpl::UpdateTargetURL(const GURL& url,
1792                                      const GURL& fallback_url) {
1793   GURL latest_url = url.is_empty() ? fallback_url : url;
1794   if (latest_url == target_url_)
1795     return;
1796
1797   // Tell the browser to display a destination link.
1798   if (target_url_status_ == TARGET_INFLIGHT ||
1799       target_url_status_ == TARGET_PENDING) {
1800     // If we have a request in-flight, save the URL to be sent when we
1801     // receive an ACK to the in-flight request. We can happily overwrite
1802     // any existing pending sends.
1803     pending_target_url_ = latest_url;
1804     target_url_status_ = TARGET_PENDING;
1805   } else {
1806     // URLs larger than |MaxURLChars()| cannot be sent through IPC -
1807     // see |ParamTraits<GURL>|.
1808     if (latest_url.possibly_invalid_spec().size() > GetMaxURLChars())
1809       latest_url = GURL();
1810     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, latest_url));
1811     target_url_ = latest_url;
1812     target_url_status_ = TARGET_INFLIGHT;
1813   }
1814 }
1815
1816 gfx::RectF RenderViewImpl::ClientRectToPhysicalWindowRect(
1817     const gfx::RectF& rect) const {
1818   gfx::RectF window_rect = rect;
1819   window_rect.Scale(device_scale_factor_ * webview()->pageScaleFactor());
1820   return window_rect;
1821 }
1822
1823 void RenderViewImpl::StartNavStateSyncTimerIfNecessary() {
1824   // No need to update state if no page has committed yet.
1825   if (page_id_ == -1)
1826     return;
1827
1828   int delay;
1829   if (send_content_state_immediately_)
1830     delay = 0;
1831   else if (is_hidden())
1832     delay = kDelaySecondsForContentStateSyncHidden;
1833   else
1834     delay = kDelaySecondsForContentStateSync;
1835
1836   if (nav_state_sync_timer_.IsRunning()) {
1837     // The timer is already running. If the delay of the timer maches the amount
1838     // we want to delay by, then return. Otherwise stop the timer so that it
1839     // gets started with the right delay.
1840     if (nav_state_sync_timer_.GetCurrentDelay().InSeconds() == delay)
1841       return;
1842     nav_state_sync_timer_.Stop();
1843   }
1844
1845   nav_state_sync_timer_.Start(FROM_HERE, TimeDelta::FromSeconds(delay), this,
1846                               &RenderViewImpl::SyncNavigationState);
1847 }
1848
1849 void RenderViewImpl::setMouseOverURL(const WebURL& url) {
1850   mouse_over_url_ = GURL(url);
1851   UpdateTargetURL(mouse_over_url_, focus_url_);
1852 }
1853
1854 void RenderViewImpl::setKeyboardFocusURL(const WebURL& url) {
1855   focus_url_ = GURL(url);
1856   UpdateTargetURL(focus_url_, mouse_over_url_);
1857 }
1858
1859 void RenderViewImpl::startDragging(WebLocalFrame* frame,
1860                                    const WebDragData& data,
1861                                    WebDragOperationsMask mask,
1862                                    const WebImage& image,
1863                                    const WebPoint& webImageOffset) {
1864   DropData drop_data(DropDataBuilder::Build(data));
1865   drop_data.referrer_policy = frame->document().referrerPolicy();
1866   gfx::Vector2d imageOffset(webImageOffset.x, webImageOffset.y);
1867   Send(new DragHostMsg_StartDragging(routing_id_,
1868                                      drop_data,
1869                                      mask,
1870                                      image.getSkBitmap(),
1871                                      imageOffset,
1872                                      possible_drag_event_info_));
1873 }
1874
1875 bool RenderViewImpl::acceptsLoadDrops() {
1876   return renderer_preferences_.can_accept_load_drops;
1877 }
1878
1879 void RenderViewImpl::focusNext() {
1880   Send(new ViewHostMsg_TakeFocus(routing_id_, false));
1881 }
1882
1883 void RenderViewImpl::focusPrevious() {
1884   Send(new ViewHostMsg_TakeFocus(routing_id_, true));
1885 }
1886
1887 void RenderViewImpl::focusedNodeChanged(const WebNode& fromNode,
1888                                         const WebNode& toNode) {
1889   has_scrolled_focused_editable_node_into_rect_ = false;
1890
1891   gfx::Rect node_bounds;
1892   if (!toNode.isNull() && toNode.isElementNode()) {
1893     WebNode web_node = const_cast<WebNode&>(toNode);
1894     node_bounds = gfx::Rect(web_node.to<WebElement>().boundsInViewportSpace());
1895   }
1896   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(toNode),
1897                                           node_bounds));
1898
1899   // TODO(estade): remove.
1900   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(toNode));
1901
1902   RenderFrameImpl* previous_frame = nullptr;
1903   if (!fromNode.isNull())
1904     previous_frame = RenderFrameImpl::FromWebFrame(fromNode.document().frame());
1905   RenderFrameImpl* new_frame = nullptr;
1906   if (!toNode.isNull())
1907     new_frame = RenderFrameImpl::FromWebFrame(toNode.document().frame());
1908
1909   if (previous_frame && previous_frame != new_frame)
1910     previous_frame->FocusedNodeChanged(WebNode());
1911   if (new_frame)
1912     new_frame->FocusedNodeChanged(toNode);
1913
1914   // TODO(dmazzoni): remove once there's a separate a11y tree per frame.
1915   GetMainRenderFrame()->FocusedNodeChangedForAccessibility(toNode);
1916 }
1917
1918 void RenderViewImpl::didUpdateLayout() {
1919   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidUpdateLayout());
1920
1921   // We don't always want to set up a timer, only if we've been put in that
1922   // mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
1923   // message.
1924   if (!send_preferred_size_changes_ || !webview())
1925     return;
1926
1927   if (check_preferred_size_timer_.IsRunning())
1928     return;
1929   check_preferred_size_timer_.Start(FROM_HERE,
1930                                     TimeDelta::FromMilliseconds(0), this,
1931                                     &RenderViewImpl::CheckPreferredSize);
1932 }
1933
1934 void RenderViewImpl::navigateBackForwardSoon(int offset) {
1935   Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
1936 }
1937
1938 int RenderViewImpl::historyBackListCount() {
1939   return history_list_offset_ < 0 ? 0 : history_list_offset_;
1940 }
1941
1942 int RenderViewImpl::historyForwardListCount() {
1943   return history_list_length_ - historyBackListCount() - 1;
1944 }
1945
1946 // blink::WebWidgetClient ----------------------------------------------------
1947
1948 void RenderViewImpl::didFocus() {
1949   // TODO(jcivelli): when https://bugs.webkit.org/show_bug.cgi?id=33389 is fixed
1950   //                 we won't have to test for user gesture anymore and we can
1951   //                 move that code back to render_widget.cc
1952   if (WebUserGestureIndicator::isProcessingUserGesture() &&
1953       !RenderThreadImpl::current()->layout_test_mode()) {
1954     Send(new ViewHostMsg_Focus(routing_id_));
1955   }
1956 }
1957
1958 void RenderViewImpl::didBlur() {
1959   // TODO(jcivelli): see TODO above in didFocus().
1960   if (WebUserGestureIndicator::isProcessingUserGesture() &&
1961       !RenderThreadImpl::current()->layout_test_mode()) {
1962     Send(new ViewHostMsg_Blur(routing_id_));
1963   }
1964 }
1965
1966 // We are supposed to get a single call to Show for a newly created RenderView
1967 // that was created via RenderViewImpl::CreateWebView.  So, we wait until this
1968 // point to dispatch the ShowView message.
1969 //
1970 // This method provides us with the information about how to display the newly
1971 // created RenderView (i.e., as a blocked popup or as a new tab).
1972 //
1973 void RenderViewImpl::show(WebNavigationPolicy policy) {
1974   if (did_show_) {
1975     // When supports_multiple_windows is disabled, popups are reusing
1976     // the same view. In some scenarios, this makes WebKit to call show() twice.
1977     if (webkit_preferences_.supports_multiple_windows)
1978       NOTREACHED() << "received extraneous Show call";
1979     return;
1980   }
1981   did_show_ = true;
1982
1983   DCHECK(opener_id_ != MSG_ROUTING_NONE);
1984
1985   // NOTE: initial_rect_ may still have its default values at this point, but
1986   // that's okay.  It'll be ignored if disposition is not NEW_POPUP, or the
1987   // browser process will impose a default position otherwise.
1988   Send(new ViewHostMsg_ShowView(opener_id_, routing_id_,
1989       NavigationPolicyToDisposition(policy), initial_rect_,
1990       opened_by_user_gesture_));
1991   SetPendingWindowRect(initial_rect_);
1992 }
1993
1994 bool RenderViewImpl::requestPointerLock() {
1995   return mouse_lock_dispatcher_->LockMouse(webwidget_mouse_lock_target_.get());
1996 }
1997
1998 void RenderViewImpl::requestPointerUnlock() {
1999   mouse_lock_dispatcher_->UnlockMouse(webwidget_mouse_lock_target_.get());
2000 }
2001
2002 bool RenderViewImpl::isPointerLocked() {
2003   return mouse_lock_dispatcher_->IsMouseLockedTo(
2004       webwidget_mouse_lock_target_.get());
2005 }
2006
2007 void RenderViewImpl::didHandleGestureEvent(
2008     const WebGestureEvent& event,
2009     bool event_cancelled) {
2010   RenderWidget::didHandleGestureEvent(event, event_cancelled);
2011
2012   if (!event_cancelled) {
2013     FOR_EACH_OBSERVER(
2014         RenderViewObserver, observers_, DidHandleGestureEvent(event));
2015   }
2016
2017   // TODO(ananta): Piggyback off existing IPCs to communicate this information,
2018   // crbug/420130.
2019 #if defined(OS_WIN)
2020   if (event.type != blink::WebGestureEvent::GestureTap)
2021     return;
2022
2023   // TODO(estade): hit test the event against focused node to make sure
2024   // the tap actually hit the focused node.
2025   blink::WebTextInputType text_input_type =
2026       GetWebView()->textInputInfo().type;
2027
2028   Send(new ViewHostMsg_FocusedNodeTouched(
2029       routing_id(), text_input_type != blink::WebTextInputTypeNone));
2030 #endif
2031 }
2032
2033 void RenderViewImpl::initializeLayerTreeView() {
2034   RenderWidget::initializeLayerTreeView();
2035   RenderWidgetCompositor* rwc = compositor();
2036   if (!rwc)
2037     return;
2038
2039   bool use_threaded_event_handling = true;
2040 #if defined(OS_MACOSX) && !defined(OS_IOS)
2041   // Disable threaded event handling if content is not handling the elastic
2042   // overscroll effect. This includes the cases where the elastic overscroll
2043   // effect is being handled by Blink (because of command line flags) and older
2044   // operating system versions which do not have an elastic overscroll effect
2045   // (SnowLeopard, which has Aqua scrollbars which need synchronous updates).
2046   use_threaded_event_handling = compositor_deps_->IsElasticOverscrollEnabled();
2047 #endif
2048   if (use_threaded_event_handling) {
2049     RenderThreadImpl* render_thread = RenderThreadImpl::current();
2050     // render_thread may be NULL in tests.
2051     InputHandlerManager* input_handler_manager =
2052         render_thread ? render_thread->input_handler_manager() : NULL;
2053     if (input_handler_manager) {
2054       input_handler_manager->AddInputHandler(
2055           routing_id_, rwc->GetInputHandler(), AsWeakPtr());
2056     }
2057   }
2058 }
2059
2060 // blink::WebFrameClient -----------------------------------------------------
2061
2062 void RenderViewImpl::Repaint(const gfx::Size& size) {
2063   OnRepaint(size);
2064 }
2065
2066 void RenderViewImpl::SetEditCommandForNextKeyEvent(const std::string& name,
2067                                                    const std::string& value) {
2068   EditCommands edit_commands;
2069   edit_commands.push_back(EditCommand(name, value));
2070   OnSetEditCommandsForNextKeyEvent(edit_commands);
2071 }
2072
2073 void RenderViewImpl::ClearEditCommands() {
2074   edit_commands_.clear();
2075 }
2076
2077 SSLStatus RenderViewImpl::GetSSLStatusOfFrame(blink::WebFrame* frame) const {
2078   std::string security_info;
2079   if (frame && frame->dataSource())
2080     security_info = frame->dataSource()->response().securityInfo();
2081
2082   SSLStatus ssl_status;
2083   DeserializeSecurityInfo(security_info,
2084                           &ssl_status.cert_id,
2085                           &ssl_status.cert_status,
2086                           &ssl_status.security_bits,
2087                           &ssl_status.connection_status,
2088                           &ssl_status.signed_certificate_timestamp_ids);
2089   return ssl_status;
2090 }
2091
2092 const std::string& RenderViewImpl::GetAcceptLanguages() const {
2093   return renderer_preferences_.accept_languages;
2094 }
2095
2096 void RenderViewImpl::didChangeIcon(WebLocalFrame* frame,
2097                                    WebIconURL::Type icon_type) {
2098   if (frame->parent())
2099     return;
2100
2101   WebVector<WebIconURL> icon_urls = frame->iconURLs(icon_type);
2102   std::vector<FaviconURL> urls;
2103   for (size_t i = 0; i < icon_urls.size(); i++) {
2104     std::vector<gfx::Size> sizes;
2105     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
2106     urls.push_back(FaviconURL(
2107         icon_urls[i].iconURL(), ToFaviconType(icon_urls[i].iconType()), sizes));
2108   }
2109   SendUpdateFaviconURL(urls);
2110 }
2111
2112 void RenderViewImpl::didUpdateCurrentHistoryItem(WebLocalFrame* frame) {
2113   StartNavStateSyncTimerIfNecessary();
2114 }
2115
2116 void RenderViewImpl::CheckPreferredSize() {
2117   // We don't always want to send the change messages over IPC, only if we've
2118   // been put in that mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
2119   // message.
2120   if (!send_preferred_size_changes_ || !webview())
2121     return;
2122
2123   gfx::Size size = webview()->contentsPreferredMinimumSize();
2124   if (size == preferred_size_)
2125     return;
2126
2127   preferred_size_ = size;
2128   Send(new ViewHostMsg_DidContentsPreferredSizeChange(routing_id_,
2129                                                       preferred_size_));
2130 }
2131
2132 void RenderViewImpl::didChangeScrollOffset(WebLocalFrame* frame) {
2133   StartNavStateSyncTimerIfNecessary();
2134 }
2135
2136 void RenderViewImpl::SendFindReply(int request_id,
2137                                    int match_count,
2138                                    int ordinal,
2139                                    const WebRect& selection_rect,
2140                                    bool final_status_update) {
2141   Send(new ViewHostMsg_Find_Reply(routing_id_,
2142                                   request_id,
2143                                   match_count,
2144                                   selection_rect,
2145                                   ordinal,
2146                                   final_status_update));
2147 }
2148
2149 blink::WebString RenderViewImpl::acceptLanguages() {
2150   return WebString::fromUTF8(renderer_preferences_.accept_languages);
2151 }
2152
2153 // blink::WebPageSerializerClient implementation ------------------------------
2154
2155 void RenderViewImpl::didSerializeDataForFrame(
2156     const WebURL& frame_url,
2157     const WebCString& data,
2158     WebPageSerializerClient::PageSerializationStatus status) {
2159   Send(new ViewHostMsg_SendSerializedHtmlData(
2160     routing_id(),
2161     frame_url,
2162     data.data(),
2163     static_cast<int32>(status)));
2164 }
2165
2166 // RenderView implementation ---------------------------------------------------
2167
2168 bool RenderViewImpl::Send(IPC::Message* message) {
2169   return RenderWidget::Send(message);
2170 }
2171
2172 RenderFrameImpl* RenderViewImpl::GetMainRenderFrame() {
2173   return main_render_frame_;
2174 }
2175
2176 int RenderViewImpl::GetRoutingID() const {
2177   return routing_id_;
2178 }
2179
2180 gfx::Size RenderViewImpl::GetSize() const {
2181   return size();
2182 }
2183
2184 WebPreferences& RenderViewImpl::GetWebkitPreferences() {
2185   return webkit_preferences_;
2186 }
2187
2188 void RenderViewImpl::SetWebkitPreferences(const WebPreferences& preferences) {
2189   OnUpdateWebPreferences(preferences);
2190 }
2191
2192 blink::WebView* RenderViewImpl::GetWebView() {
2193   return webview();
2194 }
2195
2196 bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
2197   if (node.isNull())
2198     return false;
2199
2200   if (node.isContentEditable())
2201     return true;
2202
2203   if (node.isElementNode()) {
2204     const WebElement& element = node.toConst<WebElement>();
2205     if (element.isTextFormControlElement()) {
2206       if (!(element.hasAttribute("readonly") ||
2207             element.hasAttribute("disabled")))
2208         return true;
2209     }
2210
2211     // Also return true if it has an ARIA role of 'textbox'.
2212     for (unsigned i = 0; i < element.attributeCount(); ++i) {
2213       if (LowerCaseEqualsASCII(element.attributeLocalName(i), "role")) {
2214         if (LowerCaseEqualsASCII(element.attributeValue(i), "textbox"))
2215           return true;
2216         break;
2217       }
2218     }
2219   }
2220
2221   return false;
2222 }
2223
2224 bool RenderViewImpl::ShouldDisplayScrollbars(int width, int height) const {
2225   return (!send_preferred_size_changes_ ||
2226           (disable_scrollbars_size_limit_.width() <= width ||
2227            disable_scrollbars_size_limit_.height() <= height));
2228 }
2229
2230 int RenderViewImpl::GetEnabledBindings() const {
2231   return enabled_bindings_;
2232 }
2233
2234 bool RenderViewImpl::GetContentStateImmediately() const {
2235   return send_content_state_immediately_;
2236 }
2237
2238 blink::WebPageVisibilityState RenderViewImpl::GetVisibilityState() const {
2239   return visibilityState();
2240 }
2241
2242 void RenderViewImpl::DidStartLoading() {
2243   main_render_frame_->didStartLoading(true);
2244 }
2245
2246 void RenderViewImpl::DidStopLoading() {
2247   main_render_frame_->didStopLoading();
2248 }
2249
2250 void RenderViewImpl::SyncNavigationState() {
2251   if (!webview())
2252     return;
2253   SendUpdateState(history_controller_->GetCurrentEntry());
2254 }
2255
2256 blink::WebElement RenderViewImpl::GetFocusedElement() const {
2257   if (!webview())
2258     return WebElement();
2259   WebFrame* focused_frame = webview()->focusedFrame();
2260   if (focused_frame) {
2261     WebDocument doc = focused_frame->document();
2262     if (!doc.isNull())
2263       return doc.focusedElement();
2264   }
2265
2266   return WebElement();
2267 }
2268
2269 blink::WebPlugin* RenderViewImpl::GetWebPluginForFind() {
2270   if (!webview())
2271     return NULL;
2272
2273   WebFrame* main_frame = webview()->mainFrame();
2274   if (main_frame->isWebLocalFrame() &&
2275       main_frame->document().isPluginDocument())
2276     return webview()->mainFrame()->document().to<WebPluginDocument>().plugin();
2277
2278 #if defined(ENABLE_PLUGINS)
2279   if (plugin_find_handler_)
2280     return plugin_find_handler_->container()->plugin();
2281 #endif
2282
2283   return NULL;
2284 }
2285
2286 void RenderViewImpl::OnFind(int request_id,
2287                             const base::string16& search_text,
2288                             const WebFindOptions& options) {
2289   WebFrame* main_frame = webview()->mainFrame();
2290   blink::WebPlugin* plugin = GetWebPluginForFind();
2291   // Check if the plugin still exists in the document.
2292   if (plugin) {
2293     if (options.findNext) {
2294       // Just navigate back/forward.
2295       plugin->selectFindResult(options.forward);
2296     } else {
2297       if (!plugin->startFind(
2298           search_text, options.matchCase, request_id)) {
2299         // Send "no results".
2300         SendFindReply(request_id, 0, 0, gfx::Rect(), true);
2301       }
2302     }
2303     return;
2304   }
2305
2306   WebFrame* frame_after_main = main_frame->traverseNext(true);
2307   WebFrame* focused_frame = webview()->focusedFrame();
2308   WebFrame* search_frame = focused_frame;  // start searching focused frame.
2309
2310   bool multi_frame = (frame_after_main != main_frame);
2311
2312   // If we have multiple frames, we don't want to wrap the search within the
2313   // frame, so we check here if we only have main_frame in the chain.
2314   bool wrap_within_frame = !multi_frame;
2315
2316   WebRect selection_rect;
2317   bool result = false;
2318
2319   // If something is selected when we start searching it means we cannot just
2320   // increment the current match ordinal; we need to re-generate it.
2321   WebRange current_selection = focused_frame->selectionRange();
2322
2323   do {
2324     result = search_frame->find(
2325         request_id, search_text, options, wrap_within_frame, &selection_rect);
2326
2327     if (!result) {
2328       // don't leave text selected as you move to the next frame.
2329       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2330                                    GetFocusedElement());
2331
2332       // Find the next frame, but skip the invisible ones.
2333       do {
2334         // What is the next frame to search? (we might be going backwards). Note
2335         // that we specify wrap=true so that search_frame never becomes NULL.
2336         search_frame = options.forward ?
2337             search_frame->traverseNext(true) :
2338             search_frame->traversePrevious(true);
2339       } while (!search_frame->hasVisibleContent() &&
2340                search_frame != focused_frame);
2341
2342       // Make sure selection doesn't affect the search operation in new frame.
2343       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2344                                    GetFocusedElement());
2345
2346       // If we have multiple frames and we have wrapped back around to the
2347       // focused frame, we need to search it once more allowing wrap within
2348       // the frame, otherwise it will report 'no match' if the focused frame has
2349       // reported matches, but no frames after the focused_frame contain a
2350       // match for the search word(s).
2351       if (multi_frame && search_frame == focused_frame) {
2352         result = search_frame->find(
2353             request_id, search_text, options, true,  // Force wrapping.
2354             &selection_rect);
2355       }
2356     }
2357
2358     webview()->setFocusedFrame(search_frame);
2359   } while (!result && search_frame != focused_frame);
2360
2361   if (options.findNext && current_selection.isNull()) {
2362     // Force the main_frame to report the actual count.
2363     main_frame->increaseMatchCount(0, request_id);
2364   } else {
2365     // If nothing is found, set result to "0 of 0", otherwise, set it to
2366     // "-1 of 1" to indicate that we found at least one item, but we don't know
2367     // yet what is active.
2368     int ordinal = result ? -1 : 0;  // -1 here means, we might know more later.
2369     int match_count = result ? 1 : 0;  // 1 here means possibly more coming.
2370
2371     // If we find no matches then this will be our last status update.
2372     // Otherwise the scoping effort will send more results.
2373     bool final_status_update = !result;
2374
2375     SendFindReply(request_id, match_count, ordinal, selection_rect,
2376                   final_status_update);
2377
2378     // Scoping effort begins, starting with the mainframe.
2379     search_frame = main_frame;
2380
2381     main_frame->resetMatchCount();
2382
2383     do {
2384       // Cancel all old scoping requests before starting a new one.
2385       search_frame->cancelPendingScopingEffort();
2386
2387       // We don't start another scoping effort unless at least one match has
2388       // been found.
2389       if (result) {
2390         // Start new scoping request. If the scoping function determines that it
2391         // needs to scope, it will defer until later.
2392         search_frame->scopeStringMatches(request_id,
2393                                          search_text,
2394                                          options,
2395                                          true);  // reset the tickmarks
2396       }
2397
2398       // Iterate to the next frame. The frame will not necessarily scope, for
2399       // example if it is not visible.
2400       search_frame = search_frame->traverseNext(true);
2401     } while (search_frame != main_frame);
2402   }
2403 }
2404
2405 void RenderViewImpl::OnStopFinding(StopFindAction action) {
2406   WebView* view = webview();
2407   if (!view)
2408     return;
2409
2410   blink::WebPlugin* plugin = GetWebPluginForFind();
2411   if (plugin) {
2412     plugin->stopFind();
2413     return;
2414   }
2415
2416   bool clear_selection = action == STOP_FIND_ACTION_CLEAR_SELECTION;
2417   if (clear_selection) {
2418     view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"),
2419                                          GetFocusedElement());
2420   }
2421
2422   WebFrame* frame = view->mainFrame();
2423   while (frame) {
2424     frame->stopFinding(clear_selection);
2425     frame = frame->traverseNext(false);
2426   }
2427
2428   if (action == STOP_FIND_ACTION_ACTIVATE_SELECTION) {
2429     WebFrame* focused_frame = view->focusedFrame();
2430     if (focused_frame) {
2431       WebDocument doc = focused_frame->document();
2432       if (!doc.isNull()) {
2433         WebElement element = doc.focusedElement();
2434         if (!element.isNull())
2435           element.simulateClick();
2436       }
2437     }
2438   }
2439 }
2440
2441 #if defined(OS_ANDROID)
2442 void RenderViewImpl::OnActivateNearestFindResult(int request_id,
2443                                                  float x, float y) {
2444   if (!webview())
2445       return;
2446
2447   WebFrame* main_frame = webview()->mainFrame();
2448   WebRect selection_rect;
2449   int ordinal = main_frame->selectNearestFindMatch(WebFloatPoint(x, y),
2450                                                    &selection_rect);
2451   if (ordinal == -1) {
2452     // Something went wrong, so send a no-op reply (force the main_frame to
2453     // report the current match count) in case the host is waiting for a
2454     // response due to rate-limiting).
2455     main_frame->increaseMatchCount(0, request_id);
2456     return;
2457   }
2458
2459   SendFindReply(request_id,
2460                 -1 /* number_of_matches */,
2461                 ordinal,
2462                 selection_rect,
2463                 true /* final_update */);
2464 }
2465
2466 void RenderViewImpl::OnFindMatchRects(int current_version) {
2467   if (!webview())
2468       return;
2469
2470   WebFrame* main_frame = webview()->mainFrame();
2471   std::vector<gfx::RectF> match_rects;
2472
2473   int rects_version = main_frame->findMatchMarkersVersion();
2474   if (current_version != rects_version) {
2475     WebVector<WebFloatRect> web_match_rects;
2476     main_frame->findMatchRects(web_match_rects);
2477     match_rects.reserve(web_match_rects.size());
2478     for (size_t i = 0; i < web_match_rects.size(); ++i)
2479       match_rects.push_back(gfx::RectF(web_match_rects[i]));
2480   }
2481
2482   gfx::RectF active_rect = main_frame->activeFindMatchRect();
2483   Send(new ViewHostMsg_FindMatchRects_Reply(routing_id_,
2484                                                rects_version,
2485                                                match_rects,
2486                                                active_rect));
2487 }
2488 #endif
2489
2490 void RenderViewImpl::OnResetPageScale() {
2491   if (!webview())
2492     return;
2493   webview()->setPageScaleFactor(1);
2494 }
2495
2496 void RenderViewImpl::OnZoom(PageZoom zoom) {
2497   if (!webview())  // Not sure if this can happen, but no harm in being safe.
2498     return;
2499
2500   webview()->hidePopups();
2501
2502   double old_zoom_level = webview()->zoomLevel();
2503   double zoom_level;
2504   if (zoom == PAGE_ZOOM_RESET) {
2505     zoom_level = 0;
2506   } else if (static_cast<int>(old_zoom_level) == old_zoom_level) {
2507     // Previous zoom level is a whole number, so just increment/decrement.
2508     zoom_level = old_zoom_level + zoom;
2509   } else {
2510     // Either the user hit the zoom factor limit and thus the zoom level is now
2511     // not a whole number, or a plugin changed it to a custom value.  We want
2512     // to go to the next whole number so that the user can always get back to
2513     // 100% with the keyboard/menu.
2514     if ((old_zoom_level > 1 && zoom > 0) ||
2515         (old_zoom_level < 1 && zoom < 0)) {
2516       zoom_level = static_cast<int>(old_zoom_level + zoom);
2517     } else {
2518       // We're going towards 100%, so first go to the next whole number.
2519       zoom_level = static_cast<int>(old_zoom_level);
2520     }
2521   }
2522   webview()->setZoomLevel(zoom_level);
2523   zoomLevelChanged();
2524 }
2525
2526 void RenderViewImpl::OnSetZoomLevelForLoadingURL(const GURL& url,
2527                                                  double zoom_level) {
2528 #if !defined(OS_ANDROID)
2529   // On Android, page zoom isn't used, and in case of WebView, text zoom is used
2530   // for legacy WebView text scaling emulation. Thus, the code that resets
2531   // the zoom level from this map will be effectively resetting text zoom level.
2532   host_zoom_levels_[url] = zoom_level;
2533 #endif
2534 }
2535
2536 void RenderViewImpl::OnSetZoomLevelForView(bool uses_temporary_zoom_level,
2537                                            double level) {
2538   uses_temporary_zoom_level_ = uses_temporary_zoom_level;
2539
2540   webview()->hidePopups();
2541   webview()->setZoomLevel(level);
2542 }
2543
2544 void RenderViewImpl::OnSetPageEncoding(const std::string& encoding_name) {
2545   webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
2546 }
2547
2548 void RenderViewImpl::OnResetPageEncodingToDefault() {
2549   WebString no_encoding;
2550   webview()->setPageEncoding(no_encoding);
2551 }
2552
2553 void RenderViewImpl::OnAllowBindings(int enabled_bindings_flags) {
2554   if ((enabled_bindings_flags & BINDINGS_POLICY_WEB_UI) &&
2555       !(enabled_bindings_ & BINDINGS_POLICY_WEB_UI)) {
2556     // WebUIExtensionData deletes itself when we're destroyed.
2557     new WebUIExtensionData(this);
2558     // WebUIMojo deletes itself when we're destroyed.
2559     new WebUIMojo(this);
2560   }
2561
2562   enabled_bindings_ |= enabled_bindings_flags;
2563
2564   // Keep track of the total bindings accumulated in this process.
2565   RenderProcess::current()->AddBindings(enabled_bindings_flags);
2566 }
2567
2568 void RenderViewImpl::OnDragTargetDragEnter(const DropData& drop_data,
2569                                            const gfx::Point& client_point,
2570                                            const gfx::Point& screen_point,
2571                                            WebDragOperationsMask ops,
2572                                            int key_modifiers) {
2573   WebDragOperation operation = webview()->dragTargetDragEnter(
2574       DropDataToWebDragData(drop_data),
2575       client_point,
2576       screen_point,
2577       ops,
2578       key_modifiers);
2579
2580   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2581 }
2582
2583 void RenderViewImpl::OnDragTargetDragOver(const gfx::Point& client_point,
2584                                           const gfx::Point& screen_point,
2585                                           WebDragOperationsMask ops,
2586                                           int key_modifiers) {
2587   WebDragOperation operation = webview()->dragTargetDragOver(
2588       client_point,
2589       screen_point,
2590       ops,
2591       key_modifiers);
2592
2593   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2594 }
2595
2596 void RenderViewImpl::OnDragTargetDragLeave() {
2597   webview()->dragTargetDragLeave();
2598 }
2599
2600 void RenderViewImpl::OnDragTargetDrop(const gfx::Point& client_point,
2601                                       const gfx::Point& screen_point,
2602                                       int key_modifiers) {
2603   webview()->dragTargetDrop(client_point, screen_point, key_modifiers);
2604
2605   Send(new DragHostMsg_TargetDrop_ACK(routing_id_));
2606 }
2607
2608 void RenderViewImpl::OnDragSourceEnded(const gfx::Point& client_point,
2609                                        const gfx::Point& screen_point,
2610                                        WebDragOperation op) {
2611   webview()->dragSourceEndedAt(client_point, screen_point, op);
2612 }
2613
2614 void RenderViewImpl::OnDragSourceSystemDragEnded() {
2615   webview()->dragSourceSystemDragEnded();
2616 }
2617
2618 void RenderViewImpl::OnUpdateWebPreferences(const WebPreferences& prefs) {
2619   webkit_preferences_ = prefs;
2620   ApplyWebPreferences(webkit_preferences_, webview());
2621 }
2622
2623 void RenderViewImpl::OnEnumerateDirectoryResponse(
2624     int id,
2625     const std::vector<base::FilePath>& paths) {
2626   if (!enumeration_completions_[id])
2627     return;
2628
2629   WebVector<WebString> ws_file_names(paths.size());
2630   for (size_t i = 0; i < paths.size(); ++i)
2631     ws_file_names[i] = paths[i].AsUTF16Unsafe();
2632
2633   enumeration_completions_[id]->didChooseFile(ws_file_names);
2634   enumeration_completions_.erase(id);
2635 }
2636
2637 void RenderViewImpl::OnFileChooserResponse(
2638     const std::vector<content::FileChooserFileInfo>& files) {
2639   // This could happen if we navigated to a different page before the user
2640   // closed the chooser.
2641   if (file_chooser_completions_.empty())
2642     return;
2643
2644   // Convert Chrome's SelectedFileInfo list to WebKit's.
2645   WebVector<WebFileChooserCompletion::SelectedFileInfo> selected_files(
2646       files.size());
2647   for (size_t i = 0; i < files.size(); ++i) {
2648     WebFileChooserCompletion::SelectedFileInfo selected_file;
2649     selected_file.path = files[i].file_path.AsUTF16Unsafe();
2650     selected_file.displayName =
2651         base::FilePath(files[i].display_name).AsUTF16Unsafe();
2652     if (files[i].file_system_url.is_valid()) {
2653       selected_file.fileSystemURL = files[i].file_system_url;
2654       selected_file.length = files[i].length;
2655       selected_file.modificationTime = files[i].modification_time.ToDoubleT();
2656       selected_file.isDirectory = files[i].is_directory;
2657     }
2658     selected_files[i] = selected_file;
2659   }
2660
2661   if (file_chooser_completions_.front()->completion)
2662     file_chooser_completions_.front()->completion->didChooseFile(
2663         selected_files);
2664   file_chooser_completions_.pop_front();
2665
2666   // If there are more pending file chooser requests, schedule one now.
2667   if (!file_chooser_completions_.empty()) {
2668     Send(new ViewHostMsg_RunFileChooser(routing_id_,
2669         file_chooser_completions_.front()->params));
2670   }
2671 }
2672
2673 void RenderViewImpl::OnEnableAutoResize(const gfx::Size& min_size,
2674                                         const gfx::Size& max_size) {
2675   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
2676   if (!webview())
2677     return;
2678   auto_resize_mode_ = true;
2679   webview()->enableAutoResizeMode(min_size, max_size);
2680 }
2681
2682 void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
2683   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
2684   if (!webview())
2685     return;
2686   auto_resize_mode_ = false;
2687   webview()->disableAutoResizeMode();
2688
2689   if (!new_size.IsEmpty()) {
2690     Resize(new_size,
2691            physical_backing_size_,
2692            top_controls_shrink_blink_size_,
2693            top_controls_height_,
2694            visible_viewport_size_,
2695            resizer_rect_,
2696            is_fullscreen_granted_,
2697            display_mode_,
2698            NO_RESIZE_ACK);
2699   }
2700 }
2701
2702 void RenderViewImpl::OnEnablePreferredSizeChangedMode() {
2703   if (send_preferred_size_changes_)
2704     return;
2705   send_preferred_size_changes_ = true;
2706
2707   // Start off with an initial preferred size notification (in case
2708   // |didUpdateLayout| was already called).
2709   didUpdateLayout();
2710 }
2711
2712 void RenderViewImpl::OnDisableScrollbarsForSmallWindows(
2713     const gfx::Size& disable_scrollbar_size_limit) {
2714   disable_scrollbars_size_limit_ = disable_scrollbar_size_limit;
2715 }
2716
2717 void RenderViewImpl::OnSetRendererPrefs(
2718     const RendererPreferences& renderer_prefs) {
2719   double old_zoom_level = renderer_preferences_.default_zoom_level;
2720   std::string old_accept_languages = renderer_preferences_.accept_languages;
2721
2722   renderer_preferences_ = renderer_prefs;
2723
2724   UpdateFontRenderingFromRendererPrefs();
2725   UpdateThemePrefs();
2726
2727 #if defined(USE_DEFAULT_RENDER_THEME)
2728   if (renderer_prefs.use_custom_colors) {
2729     WebColorName name = blink::WebColorWebkitFocusRingColor;
2730     blink::setNamedColors(&name, &renderer_prefs.focus_ring_color, 1);
2731     blink::setCaretBlinkInterval(renderer_prefs.caret_blink_interval);
2732
2733     if (webview()) {
2734       webview()->setSelectionColors(
2735           renderer_prefs.active_selection_bg_color,
2736           renderer_prefs.active_selection_fg_color,
2737           renderer_prefs.inactive_selection_bg_color,
2738           renderer_prefs.inactive_selection_fg_color);
2739       webview()->themeChanged();
2740     }
2741   }
2742 #endif  // defined(USE_DEFAULT_RENDER_THEME)
2743
2744   // If the zoom level for this page matches the old zoom default, and this
2745   // is not a plugin, update the zoom level to match the new default.
2746   if (webview() && webview()->mainFrame()->isWebLocalFrame() &&
2747       !webview()->mainFrame()->document().isPluginDocument() &&
2748       !ZoomValuesEqual(old_zoom_level,
2749                        renderer_preferences_.default_zoom_level) &&
2750       ZoomValuesEqual(webview()->zoomLevel(), old_zoom_level)) {
2751     webview()->setZoomLevel(renderer_preferences_.default_zoom_level);
2752     zoomLevelChanged();
2753   }
2754
2755   if (webview() &&
2756       old_accept_languages != renderer_preferences_.accept_languages) {
2757     webview()->acceptLanguagesChanged();
2758   }
2759 }
2760
2761 void RenderViewImpl::OnMediaPlayerActionAt(const gfx::Point& location,
2762                                            const WebMediaPlayerAction& action) {
2763   if (webview())
2764     webview()->performMediaPlayerAction(action, location);
2765 }
2766
2767 void RenderViewImpl::OnOrientationChange() {
2768   if (webview() && webview()->mainFrame()->isWebLocalFrame())
2769     webview()->mainFrame()->toWebLocalFrame()->sendOrientationChangeEvent();
2770 }
2771
2772 void RenderViewImpl::OnPluginActionAt(const gfx::Point& location,
2773                                       const WebPluginAction& action) {
2774   if (webview())
2775     webview()->performPluginAction(action, location);
2776 }
2777
2778 void RenderViewImpl::OnGetAllSavableResourceLinksForCurrentPage(
2779     const GURL& page_url) {
2780   // Prepare list to storage all savable resource links.
2781   std::vector<GURL> resources_list;
2782   std::vector<GURL> referrer_urls_list;
2783   std::vector<blink::WebReferrerPolicy> referrer_policies_list;
2784   std::vector<GURL> frames_list;
2785   SavableResourcesResult result(&resources_list,
2786                                 &referrer_urls_list,
2787                                 &referrer_policies_list,
2788                                 &frames_list);
2789
2790   // webkit/ doesn't know about Referrer.
2791   if (!GetAllSavableResourceLinksForCurrentPage(
2792           webview(),
2793           page_url,
2794           &result,
2795           const_cast<const char**>(GetSavableSchemes()))) {
2796     // If something is wrong when collecting all savable resource links,
2797     // send empty list to embedder(browser) to tell it failed.
2798     referrer_urls_list.clear();
2799     referrer_policies_list.clear();
2800     resources_list.clear();
2801     frames_list.clear();
2802   }
2803
2804   std::vector<Referrer> referrers_list;
2805   CHECK_EQ(referrer_urls_list.size(), referrer_policies_list.size());
2806   for (unsigned i = 0; i < referrer_urls_list.size(); ++i) {
2807     referrers_list.push_back(
2808         Referrer(referrer_urls_list[i], referrer_policies_list[i]));
2809   }
2810
2811   // Send result of all savable resource links to embedder.
2812   Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id(),
2813                                                               resources_list,
2814                                                               referrers_list,
2815                                                               frames_list));
2816 }
2817
2818 void RenderViewImpl::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
2819     const std::vector<GURL>& links,
2820     const std::vector<base::FilePath>& local_paths,
2821     const base::FilePath& local_directory_name) {
2822
2823   // Convert std::vector of GURLs to WebVector<WebURL>
2824   WebVector<WebURL> weburl_links(links);
2825
2826   // Convert std::vector of base::FilePath to WebVector<WebString>
2827   WebVector<WebString> webstring_paths(local_paths.size());
2828   for (size_t i = 0; i < local_paths.size(); i++)
2829     webstring_paths[i] = local_paths[i].AsUTF16Unsafe();
2830
2831   WebPageSerializer::serialize(webview()->mainFrame()->toWebLocalFrame(),
2832                                true,
2833                                this,
2834                                weburl_links,
2835                                webstring_paths,
2836                                local_directory_name.AsUTF16Unsafe());
2837 }
2838
2839 void RenderViewImpl::OnSuppressDialogsUntilSwapOut() {
2840   // Don't show any more dialogs until we finish OnSwapOut.
2841   suppress_dialogs_until_swap_out_ = true;
2842 }
2843
2844 void RenderViewImpl::OnClosePage() {
2845   FOR_EACH_OBSERVER(RenderViewObserver, observers_, ClosePage());
2846   // TODO(creis): We'd rather use webview()->Close() here, but that currently
2847   // sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
2848   // in the onunload handler from appearing.  For now, we're bypassing that and
2849   // calling the FrameLoader's CloseURL method directly.  This should be
2850   // revisited to avoid having two ways to close a page.  Having a single way
2851   // to close that can run onunload is also useful for fixing
2852   // http://b/issue?id=753080.
2853   webview()->mainFrame()->dispatchUnloadEvent();
2854
2855   Send(new ViewHostMsg_ClosePage_ACK(routing_id_));
2856 }
2857
2858 void RenderViewImpl::OnClose() {
2859   if (closing_)
2860     RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
2861   RenderWidget::OnClose();
2862 }
2863
2864 void RenderViewImpl::OnThemeChanged() {
2865 #if defined(USE_AURA)
2866   // Aura doesn't care if we switch themes.
2867 #elif defined(OS_WIN)
2868   ui::NativeThemeWin::instance()->CloseHandles();
2869   if (webview())
2870     webview()->themeChanged();
2871 #else  // defined(OS_WIN)
2872   // TODO(port): we don't support theming on non-Windows platforms yet
2873   NOTIMPLEMENTED();
2874 #endif
2875 }
2876
2877 void RenderViewImpl::OnMoveOrResizeStarted() {
2878   if (webview())
2879     webview()->hidePopups();
2880 }
2881
2882 void RenderViewImpl::OnResize(const ViewMsg_Resize_Params& params) {
2883   TRACE_EVENT0("renderer", "RenderViewImpl::OnResize");
2884   if (webview()) {
2885     webview()->hidePopups();
2886     if (send_preferred_size_changes_) {
2887       webview()->mainFrame()->setCanHaveScrollbars(
2888           ShouldDisplayScrollbars(params.new_size.width(),
2889                                   params.new_size.height()));
2890     }
2891     if (display_mode_ != params.display_mode) {
2892       display_mode_ = params.display_mode;
2893       webview()->setDisplayMode(display_mode_);
2894     }
2895   }
2896
2897   gfx::Size old_visible_viewport_size = visible_viewport_size_;
2898
2899   RenderWidget::OnResize(params);
2900
2901   if (old_visible_viewport_size != visible_viewport_size_)
2902     has_scrolled_focused_editable_node_into_rect_ = false;
2903 }
2904
2905 void RenderViewImpl::DidInitiatePaint() {
2906 #if defined(ENABLE_PLUGINS)
2907   // Notify all instances that we painted.  The same caveats apply as for
2908   // ViewFlushedPaint regarding instances closing themselves, so we take
2909   // similar precautions.
2910   PepperPluginSet plugins = active_pepper_instances_;
2911   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
2912     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
2913       (*i)->ViewInitiatedPaint();
2914   }
2915 #endif
2916 }
2917
2918 void RenderViewImpl::DidFlushPaint() {
2919   // If the RenderWidget is closing down then early-exit, otherwise we'll crash.
2920   // See crbug.com/112921.
2921   if (!webview())
2922     return;
2923
2924   WebFrame* main_frame = webview()->mainFrame();
2925   for (WebFrame* frame = main_frame; frame;
2926        frame = frame->traverseNext(false)) {
2927     // TODO(nasko): This is a hack for the case in which the top-level
2928     // frame is being rendered in another process. It will not
2929     // behave correctly for out of process iframes.
2930     if (frame->isWebLocalFrame()) {
2931       main_frame = frame;
2932       break;
2933     }
2934   }
2935
2936   // If we have a provisional frame we are between the start and commit stages
2937   // of loading and we don't want to save stats.
2938   if (!main_frame->provisionalDataSource()) {
2939     WebDataSource* ds = main_frame->dataSource();
2940     if (!ds)
2941       return;
2942
2943     DocumentState* document_state = DocumentState::FromDataSource(ds);
2944
2945     // TODO(jar): The following code should all be inside a method, probably in
2946     // NavigatorState.
2947     Time now = Time::Now();
2948     if (document_state->first_paint_time().is_null()) {
2949       document_state->set_first_paint_time(now);
2950     }
2951     if (document_state->first_paint_after_load_time().is_null() &&
2952         !document_state->finish_load_time().is_null()) {
2953       document_state->set_first_paint_after_load_time(now);
2954     }
2955   }
2956 }
2957
2958 gfx::Vector2d RenderViewImpl::GetScrollOffset() {
2959   WebFrame* main_frame = webview()->mainFrame();
2960   for (WebFrame* frame = main_frame; frame;
2961        frame = frame->traverseNext(false)) {
2962     // TODO(nasko): This is a hack for the case in which the top-level
2963     // frame is being rendered in another process. It will not
2964     // behave correctly for out of process iframes.
2965     if (frame->isWebLocalFrame()) {
2966       main_frame = frame;
2967       break;
2968     }
2969   }
2970
2971   WebSize scroll_offset = main_frame->scrollOffset();
2972   return gfx::Vector2d(scroll_offset.width, scroll_offset.height);
2973 }
2974
2975 void RenderViewImpl::OnClearFocusedElement() {
2976   if (webview())
2977     webview()->clearFocusedElement();
2978 }
2979
2980 void RenderViewImpl::OnSetBackgroundOpaque(bool opaque) {
2981   if (webview())
2982     webview()->setIsTransparent(!opaque);
2983   if (compositor_)
2984     compositor_->setHasTransparentBackground(!opaque);
2985 }
2986
2987 void RenderViewImpl::OnSetActive(bool active) {
2988   if (webview())
2989     webview()->setIsActive(active);
2990
2991 #if defined(ENABLE_PLUGINS) && defined(OS_MACOSX)
2992   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
2993   for (plugin_it = plugin_delegates_.begin();
2994        plugin_it != plugin_delegates_.end(); ++plugin_it) {
2995     (*plugin_it)->SetWindowFocus(active);
2996   }
2997 #endif
2998 }
2999
3000 #if defined(OS_MACOSX)
3001 void RenderViewImpl::OnSetWindowVisibility(bool visible) {
3002 #if defined(ENABLE_PLUGINS)
3003   // Inform plugins that their container has changed visibility.
3004   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3005   for (plugin_it = plugin_delegates_.begin();
3006        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3007     (*plugin_it)->SetContainerVisibility(visible);
3008   }
3009 #endif
3010 }
3011
3012 void RenderViewImpl::OnWindowFrameChanged(const gfx::Rect& window_frame,
3013                                           const gfx::Rect& view_frame) {
3014 #if defined(ENABLE_PLUGINS)
3015   // Inform plugins that their window's frame has changed.
3016   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3017   for (plugin_it = plugin_delegates_.begin();
3018        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3019     (*plugin_it)->WindowFrameChanged(window_frame, view_frame);
3020   }
3021 #endif
3022 }
3023
3024 void RenderViewImpl::OnPluginImeCompositionCompleted(const base::string16& text,
3025                                                      int plugin_id) {
3026   // WebPluginDelegateProxy is responsible for figuring out if this event
3027   // applies to it or not, so inform all the delegates.
3028   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3029   for (plugin_it = plugin_delegates_.begin();
3030        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3031     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
3032   }
3033 }
3034 #endif  // OS_MACOSX
3035
3036 void RenderViewImpl::Close() {
3037   // We need to grab a pointer to the doomed WebView before we destroy it.
3038   WebView* doomed = webview();
3039   RenderWidget::Close();
3040   g_view_map.Get().erase(doomed);
3041   g_routing_id_view_map.Get().erase(routing_id_);
3042   RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3043 }
3044
3045 void RenderViewImpl::DidHandleKeyEvent() {
3046   ClearEditCommands();
3047 }
3048
3049 bool RenderViewImpl::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
3050   possible_drag_event_info_.event_source =
3051       ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
3052   possible_drag_event_info_.event_location =
3053       gfx::Point(event.globalX, event.globalY);
3054
3055 #if defined(ENABLE_PLUGINS)
3056   // This method is called for every mouse event that the render view receives.
3057   // And then the mouse event is forwarded to WebKit, which dispatches it to the
3058   // event target. Potentially a Pepper plugin will receive the event.
3059   // In order to tell whether a plugin gets the last mouse event and which it
3060   // is, we set |pepper_last_mouse_event_target_| to NULL here. If a plugin gets
3061   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
3062   // |pepper_last_mouse_event_target_|.
3063   pepper_last_mouse_event_target_ = NULL;
3064 #endif
3065
3066   // If the mouse is locked, only the current owner of the mouse lock can
3067   // process mouse events.
3068   return mouse_lock_dispatcher_->WillHandleMouseEvent(event);
3069 }
3070
3071 bool RenderViewImpl::WillHandleGestureEvent(
3072     const blink::WebGestureEvent& event) {
3073   possible_drag_event_info_.event_source =
3074       ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
3075   possible_drag_event_info_.event_location =
3076       gfx::Point(event.globalX, event.globalY);
3077   return false;
3078 }
3079
3080 void RenderViewImpl::DidHandleMouseEvent(const WebMouseEvent& event) {
3081   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleMouseEvent(event));
3082 }
3083
3084 bool RenderViewImpl::HasTouchEventHandlersAt(const gfx::Point& point) const {
3085   if (!webview())
3086     return false;
3087   return webview()->hasTouchEventHandlersAt(point);
3088 }
3089
3090 void RenderViewImpl::OnWasHidden() {
3091   RenderWidget::OnWasHidden();
3092
3093 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3094   RenderThreadImpl::current()->video_capture_impl_manager()->
3095       SuspendDevices(true);
3096   if (speech_recognition_dispatcher_)
3097     speech_recognition_dispatcher_->AbortAllRecognitions();
3098 #endif
3099
3100   if (webview())
3101     webview()->setVisibilityState(visibilityState(), false);
3102
3103 #if defined(ENABLE_PLUGINS)
3104   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3105        i != active_pepper_instances_.end(); ++i)
3106     (*i)->PageVisibilityChanged(false);
3107
3108 #if defined(OS_MACOSX)
3109   // Inform NPAPI plugins that their container is no longer visible.
3110   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3111   for (plugin_it = plugin_delegates_.begin();
3112        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3113     (*plugin_it)->SetContainerVisibility(false);
3114   }
3115 #endif  // OS_MACOSX
3116 #endif // ENABLE_PLUGINS
3117 }
3118
3119 void RenderViewImpl::OnWasShown(bool needs_repainting,
3120                                 const ui::LatencyInfo& latency_info) {
3121   RenderWidget::OnWasShown(needs_repainting, latency_info);
3122
3123 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3124   RenderThreadImpl::current()->video_capture_impl_manager()->
3125       SuspendDevices(false);
3126 #endif
3127
3128   if (webview())
3129     webview()->setVisibilityState(visibilityState(), false);
3130
3131 #if defined(ENABLE_PLUGINS)
3132   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3133        i != active_pepper_instances_.end(); ++i)
3134     (*i)->PageVisibilityChanged(true);
3135
3136 #if defined(OS_MACOSX)
3137   // Inform NPAPI plugins that their container is now visible.
3138   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3139   for (plugin_it = plugin_delegates_.begin();
3140        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3141     (*plugin_it)->SetContainerVisibility(true);
3142   }
3143 #endif  // OS_MACOSX
3144 #endif  // ENABLE_PLUGINS
3145 }
3146
3147 GURL RenderViewImpl::GetURLForGraphicsContext3D() {
3148   DCHECK(webview());
3149   if (webview()->mainFrame()->isWebLocalFrame())
3150     return GURL(webview()->mainFrame()->document().url());
3151   else
3152     return GURL("chrome://gpu/RenderViewImpl::CreateGraphicsContext3D");
3153 }
3154
3155 void RenderViewImpl::OnSetFocus(bool enable) {
3156   RenderWidget::OnSetFocus(enable);
3157
3158 #if defined(ENABLE_PLUGINS)
3159   if (webview() && webview()->isActive()) {
3160     // Notify all NPAPI plugins.
3161     std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3162     for (plugin_it = plugin_delegates_.begin();
3163          plugin_it != plugin_delegates_.end(); ++plugin_it) {
3164 #if defined(OS_MACOSX)
3165       // RenderWidget's call to setFocus can cause the underlying webview's
3166       // activation state to change just like a call to setIsActive.
3167       if (enable)
3168         (*plugin_it)->SetWindowFocus(true);
3169 #endif
3170       (*plugin_it)->SetContentAreaFocus(enable);
3171     }
3172   }
3173   // Notify all Pepper plugins.
3174   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3175        i != active_pepper_instances_.end(); ++i)
3176     (*i)->SetContentAreaFocus(enable);
3177 #endif
3178   // Notify all BrowserPlugins of the RenderView's focus state.
3179   if (BrowserPluginManager::Get())
3180     BrowserPluginManager::Get()->UpdateFocusState();
3181 }
3182
3183 void RenderViewImpl::OnImeSetComposition(
3184     const base::string16& text,
3185     const std::vector<blink::WebCompositionUnderline>& underlines,
3186     int selection_start,
3187     int selection_end) {
3188 #if defined(ENABLE_PLUGINS)
3189   if (focused_pepper_plugin_) {
3190     focused_pepper_plugin_->render_frame()->OnImeSetComposition(
3191         text, underlines, selection_start, selection_end);
3192     return;
3193   }
3194
3195 #if defined(OS_WIN)
3196   // When a plugin has focus, we create platform-specific IME data used by
3197   // our IME emulator and send it directly to the focused plugin, i.e. we
3198   // bypass WebKit. (WebPluginDelegate dispatches this IME data only when its
3199   // instance ID is the same one as the specified ID.)
3200   if (focused_plugin_id_ >= 0) {
3201     std::vector<int> clauses;
3202     std::vector<int> target;
3203     for (size_t i = 0; i < underlines.size(); ++i) {
3204       clauses.push_back(underlines[i].startOffset);
3205       clauses.push_back(underlines[i].endOffset);
3206       if (underlines[i].thick) {
3207         target.clear();
3208         target.push_back(underlines[i].startOffset);
3209         target.push_back(underlines[i].endOffset);
3210       }
3211     }
3212     std::set<WebPluginDelegateProxy*>::iterator it;
3213     for (it = plugin_delegates_.begin(); it != plugin_delegates_.end(); ++it) {
3214       (*it)->ImeCompositionUpdated(text, clauses, target, selection_end,
3215                                    focused_plugin_id_);
3216     }
3217     return;
3218   }
3219 #endif  // OS_WIN
3220 #endif  // ENABLE_PLUGINS
3221   RenderWidget::OnImeSetComposition(text,
3222                                     underlines,
3223                                     selection_start,
3224                                     selection_end);
3225 }
3226
3227 void RenderViewImpl::OnImeConfirmComposition(
3228     const base::string16& text,
3229     const gfx::Range& replacement_range,
3230     bool keep_selection) {
3231 #if defined(ENABLE_PLUGINS)
3232   if (focused_pepper_plugin_) {
3233     focused_pepper_plugin_->render_frame()->OnImeConfirmComposition(
3234         text, replacement_range, keep_selection);
3235     return;
3236   }
3237 #if defined(OS_WIN)
3238   // Same as OnImeSetComposition(), we send the text from IMEs directly to
3239   // plugins. When we send IME text directly to plugins, we should not send
3240   // it to WebKit to prevent WebKit from controlling IMEs.
3241   // TODO(thakis): Honor |replacement_range| for plugins?
3242   if (focused_plugin_id_ >= 0) {
3243     std::set<WebPluginDelegateProxy*>::iterator it;
3244     for (it = plugin_delegates_.begin();
3245           it != plugin_delegates_.end(); ++it) {
3246       (*it)->ImeCompositionCompleted(text, focused_plugin_id_);
3247     }
3248     return;
3249   }
3250 #endif  // OS_WIN
3251 #endif  // ENABLE_PLUGINS
3252   if (replacement_range.IsValid() && webview()) {
3253     // Select the text in |replacement_range|, it will then be replaced by
3254     // text added by the call to RenderWidget::OnImeConfirmComposition().
3255     if (WebLocalFrame* frame = webview()->focusedFrame()->toWebLocalFrame()) {
3256       WebRange webrange = WebRange::fromDocumentRange(
3257           frame, replacement_range.start(), replacement_range.length());
3258       if (!webrange.isNull())
3259         frame->selectRange(webrange);
3260     }
3261   }
3262   RenderWidget::OnImeConfirmComposition(text,
3263                                         replacement_range,
3264                                         keep_selection);
3265 }
3266
3267 void RenderViewImpl::SetDeviceScaleFactor(float device_scale_factor) {
3268   RenderWidget::SetDeviceScaleFactor(device_scale_factor);
3269   if (webview()) {
3270     webview()->setDeviceScaleFactor(device_scale_factor);
3271     webview()->settings()->setPreferCompositingToLCDTextEnabled(
3272         PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
3273   }
3274   if (auto_resize_mode_)
3275     AutoResizeCompositor();
3276 }
3277
3278 bool RenderViewImpl::SetDeviceColorProfile(
3279     const std::vector<char>& profile) {
3280   bool changed = RenderWidget::SetDeviceColorProfile(profile);
3281   if (changed && webview()) {
3282     WebVector<char> colorProfile = profile;
3283     webview()->setDeviceColorProfile(colorProfile);
3284   }
3285   return changed;
3286 }
3287
3288 void RenderViewImpl::ResetDeviceColorProfileForTesting() {
3289   RenderWidget::ResetDeviceColorProfileForTesting();
3290   if (webview())
3291     webview()->resetDeviceColorProfile();
3292 }
3293
3294 ui::TextInputType RenderViewImpl::GetTextInputType() {
3295 #if defined(ENABLE_PLUGINS)
3296   if (focused_pepper_plugin_)
3297     return focused_pepper_plugin_->text_input_type();
3298 #endif
3299   return RenderWidget::GetTextInputType();
3300 }
3301
3302 void RenderViewImpl::GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) {
3303 #if defined(ENABLE_PLUGINS)
3304   if (focused_pepper_plugin_) {
3305     // TODO(kinaba) http://crbug.com/101101
3306     // Current Pepper IME API does not handle selection bounds. So we simply
3307     // use the caret position as an empty range for now. It will be updated
3308     // after Pepper API equips features related to surrounding text retrieval.
3309     gfx::Rect caret = focused_pepper_plugin_->GetCaretBounds();
3310     *start = caret;
3311     *end = caret;
3312     return;
3313   }
3314 #endif
3315   RenderWidget::GetSelectionBounds(start, end);
3316 }
3317
3318 void RenderViewImpl::FocusChangeComplete() {
3319   RenderWidget::FocusChangeComplete();
3320   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusChangeComplete());
3321 }
3322
3323 void RenderViewImpl::GetCompositionCharacterBounds(
3324     std::vector<gfx::Rect>* bounds) {
3325   DCHECK(bounds);
3326   bounds->clear();
3327
3328 #if defined(ENABLE_PLUGINS)
3329   if (focused_pepper_plugin_) {
3330     return;
3331   }
3332 #endif
3333
3334   if (!webview())
3335     return;
3336   size_t start_offset = 0;
3337   size_t character_count = 0;
3338   if (!webview()->compositionRange(&start_offset, &character_count))
3339     return;
3340   if (character_count == 0)
3341     return;
3342
3343   blink::WebFrame* frame = webview()->focusedFrame();
3344   if (!frame)
3345     return;
3346
3347   bounds->reserve(character_count);
3348   blink::WebRect webrect;
3349   for (size_t i = 0; i < character_count; ++i) {
3350     if (!frame->firstRectForCharacterRange(start_offset + i, 1, webrect)) {
3351       DLOG(ERROR) << "Could not retrieve character rectangle at " << i;
3352       bounds->clear();
3353       return;
3354     }
3355     bounds->push_back(webrect);
3356   }
3357 }
3358
3359 void RenderViewImpl::GetCompositionRange(gfx::Range* range) {
3360 #if defined(ENABLE_PLUGINS)
3361   if (focused_pepper_plugin_) {
3362     return;
3363   }
3364 #endif
3365   RenderWidget::GetCompositionRange(range);
3366 }
3367
3368 bool RenderViewImpl::CanComposeInline() {
3369 #if defined(ENABLE_PLUGINS)
3370   if (focused_pepper_plugin_)
3371     return focused_pepper_plugin_->IsPluginAcceptingCompositionEvents();
3372 #endif
3373   return true;
3374 }
3375
3376 void RenderViewImpl::DidCompletePageScaleAnimation() {
3377   FocusChangeComplete();
3378 }
3379
3380 void RenderViewImpl::SetScreenMetricsEmulationParameters(
3381     bool enabled,
3382     const blink::WebDeviceEmulationParams& params) {
3383   if (webview() && compositor()) {
3384     if (enabled)
3385       webview()->enableDeviceEmulation(params);
3386     else
3387       webview()->disableDeviceEmulation();
3388   }
3389 }
3390
3391 bool RenderViewImpl::ScheduleFileChooser(
3392     const FileChooserParams& params,
3393     WebFileChooserCompletion* completion) {
3394   static const size_t kMaximumPendingFileChooseRequests = 4;
3395   if (file_chooser_completions_.size() > kMaximumPendingFileChooseRequests) {
3396     // This sanity check prevents too many file choose requests from getting
3397     // queued which could DoS the user. Getting these is most likely a
3398     // programming error (there are many ways to DoS the user so it's not
3399     // considered a "real" security check), either in JS requesting many file
3400     // choosers to pop up, or in a plugin.
3401     //
3402     // TODO(brettw) we might possibly want to require a user gesture to open
3403     // a file picker, which will address this issue in a better way.
3404     return false;
3405   }
3406
3407   file_chooser_completions_.push_back(linked_ptr<PendingFileChooser>(
3408       new PendingFileChooser(params, completion)));
3409   if (file_chooser_completions_.size() == 1) {
3410     // Actually show the browse dialog when this is the first request.
3411     Send(new ViewHostMsg_RunFileChooser(routing_id_, params));
3412   }
3413   return true;
3414 }
3415
3416 blink::WebSpeechRecognizer* RenderViewImpl::speechRecognizer() {
3417   if (!speech_recognition_dispatcher_)
3418     speech_recognition_dispatcher_ = new SpeechRecognitionDispatcher(this);
3419   return speech_recognition_dispatcher_;
3420 }
3421
3422 void RenderViewImpl::zoomLimitsChanged(double minimum_level,
3423                                        double maximum_level) {
3424   // Round the double to avoid returning incorrect minimum/maximum zoom
3425   // percentages.
3426   int minimum_percent = round(
3427       ZoomLevelToZoomFactor(minimum_level) * 100);
3428   int maximum_percent = round(
3429       ZoomLevelToZoomFactor(maximum_level) * 100);
3430
3431   Send(new ViewHostMsg_UpdateZoomLimits(
3432       routing_id_, minimum_percent, maximum_percent));
3433 }
3434
3435 void RenderViewImpl::zoomLevelChanged() {
3436   double zoom_level = webview()->zoomLevel();
3437
3438   // Do not send empty URLs to the browser when we are just setting the default
3439   // zoom level (from RendererPreferences) before the first navigation.
3440   if (!webview()->mainFrame()->document().url().isEmpty()) {
3441     // Tell the browser which url got zoomed so it can update the menu and the
3442     // saved values if necessary
3443     Send(new ViewHostMsg_DidZoomURL(
3444         routing_id_, zoom_level,
3445         GURL(webview()->mainFrame()->document().url())));
3446   }
3447 }
3448
3449 void RenderViewImpl::pageScaleFactorChanged() {
3450   if (!webview())
3451     return;
3452   bool page_scale_factor_is_one = webview()->pageScaleFactor() == 1;
3453   if (page_scale_factor_is_one == page_scale_factor_is_one_)
3454     return;
3455   page_scale_factor_is_one_ = page_scale_factor_is_one;
3456   Send(new ViewHostMsg_PageScaleFactorIsOneChanged(routing_id_,
3457                                                    page_scale_factor_is_one_));
3458 }
3459
3460 double RenderViewImpl::zoomLevelToZoomFactor(double zoom_level) const {
3461   return ZoomLevelToZoomFactor(zoom_level);
3462 }
3463
3464 double RenderViewImpl::zoomFactorToZoomLevel(double factor) const {
3465   return ZoomFactorToZoomLevel(factor);
3466 }
3467
3468 void RenderViewImpl::registerProtocolHandler(const WebString& scheme,
3469                                              const WebURL& url,
3470                                              const WebString& title) {
3471   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3472   Send(new ViewHostMsg_RegisterProtocolHandler(routing_id_,
3473                                                base::UTF16ToUTF8(scheme),
3474                                                url,
3475                                                title,
3476                                                user_gesture));
3477 }
3478
3479 void RenderViewImpl::unregisterProtocolHandler(const WebString& scheme,
3480                                                const WebURL& url) {
3481   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
3482   Send(new ViewHostMsg_UnregisterProtocolHandler(routing_id_,
3483                                                  base::UTF16ToUTF8(scheme),
3484                                                  url,
3485                                                  user_gesture));
3486 }
3487
3488 blink::WebPageVisibilityState RenderViewImpl::visibilityState() const {
3489   blink::WebPageVisibilityState current_state = is_hidden() ?
3490       blink::WebPageVisibilityStateHidden :
3491       blink::WebPageVisibilityStateVisible;
3492   blink::WebPageVisibilityState override_state = current_state;
3493   // TODO(jam): move this method to WebFrameClient.
3494   if (GetContentClient()->renderer()->
3495           ShouldOverridePageVisibilityState(main_render_frame_,
3496                                             &override_state))
3497     return override_state;
3498   return current_state;
3499 }
3500
3501 void RenderViewImpl::draggableRegionsChanged() {
3502   FOR_EACH_OBSERVER(
3503       RenderViewObserver,
3504       observers_,
3505       DraggableRegionsChanged(webview()->mainFrame()));
3506 }
3507
3508 #if defined(OS_ANDROID)
3509 WebContentDetectionResult RenderViewImpl::detectContentAround(
3510     const WebHitTestResult& touch_hit) {
3511   DCHECK(touch_hit.node().isTextNode());
3512
3513   // Process the position with all the registered content detectors until
3514   // a match is found. Priority is provided by their relative order.
3515   for (ContentDetectorList::const_iterator it = content_detectors_.begin();
3516       it != content_detectors_.end(); ++it) {
3517     ContentDetector::Result content = (*it)->FindTappedContent(touch_hit);
3518     if (content.valid) {
3519       return WebContentDetectionResult(content.content_boundaries,
3520           base::UTF8ToUTF16(content.text), content.intent_url);
3521     }
3522   }
3523   return WebContentDetectionResult();
3524 }
3525
3526 void RenderViewImpl::scheduleContentIntent(const WebURL& intent) {
3527   // Introduce a short delay so that the user can notice the content.
3528   base::MessageLoop::current()->PostDelayedTask(
3529       FROM_HERE,
3530       base::Bind(&RenderViewImpl::LaunchAndroidContentIntent,
3531                  AsWeakPtr(),
3532                  intent,
3533                  expected_content_intent_id_),
3534       base::TimeDelta::FromMilliseconds(kContentIntentDelayMilliseconds));
3535 }
3536
3537 void RenderViewImpl::cancelScheduledContentIntents() {
3538   ++expected_content_intent_id_;
3539 }
3540
3541 void RenderViewImpl::LaunchAndroidContentIntent(const GURL& intent,
3542                                                 size_t request_id) {
3543   if (request_id != expected_content_intent_id_)
3544     return;
3545
3546   // Remove the content highlighting if any.
3547   scheduleComposite();
3548
3549   if (!intent.is_empty())
3550     Send(new ViewHostMsg_StartContentIntent(routing_id_, intent));
3551 }
3552
3553 bool RenderViewImpl::openDateTimeChooser(
3554     const blink::WebDateTimeChooserParams& params,
3555     blink::WebDateTimeChooserCompletion* completion) {
3556   // JavaScript may try to open a date time chooser while one is already open.
3557   if (date_time_picker_client_)
3558     return false;
3559   date_time_picker_client_.reset(
3560       new RendererDateTimePicker(this, params, completion));
3561   return date_time_picker_client_->Open();
3562 }
3563
3564 void RenderViewImpl::DismissDateTimeDialog() {
3565   DCHECK(date_time_picker_client_);
3566   date_time_picker_client_.reset(NULL);
3567 }
3568
3569 #endif  // defined(OS_ANDROID)
3570
3571 void RenderViewImpl::OnShowContextMenu(
3572     ui::MenuSourceType source_type, const gfx::Point& location) {
3573   context_menu_source_type_ = source_type;
3574   has_host_context_menu_location_ = true;
3575   host_context_menu_location_ = location;
3576   if (webview())
3577     webview()->showContextMenu();
3578   has_host_context_menu_location_ = false;
3579 }
3580
3581 void RenderViewImpl::OnEnableViewSourceMode() {
3582   if (!webview())
3583     return;
3584   WebFrame* main_frame = webview()->mainFrame();
3585   if (!main_frame)
3586     return;
3587   main_frame->enableViewSourceMode(true);
3588 }
3589
3590 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
3591 bool RenderViewImpl::didTapMultipleTargets(
3592     const WebSize& inner_viewport_offset,
3593     const WebRect& touch_rect,
3594     const WebVector<WebRect>& target_rects) {
3595   DCHECK(switches::IsLinkDisambiguationPopupEnabled());
3596
3597   // Never show a disambiguation popup when accessibility is enabled,
3598   // as this interferes with "touch exploration".
3599   AccessibilityMode accessibility_mode =
3600       GetMainRenderFrame()->accessibility_mode();
3601   bool matches_accessibility_mode_complete =
3602       (accessibility_mode & AccessibilityModeComplete) ==
3603           AccessibilityModeComplete;
3604   if (matches_accessibility_mode_complete)
3605     return false;
3606
3607   // The touch_rect, target_rects and zoom_rect are in the outer viewport
3608   // reference frame.
3609   gfx::Rect zoom_rect;
3610   float new_total_scale =
3611       DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
3612           touch_rect, target_rects, GetSize(),
3613           gfx::Rect(webview()->mainFrame()->visibleContentRect()).size(),
3614           device_scale_factor_ * webview()->pageScaleFactor(), &zoom_rect);
3615   if (!new_total_scale || zoom_rect.IsEmpty())
3616     return false;
3617
3618   bool handled = false;
3619   switch (renderer_preferences_.tap_multiple_targets_strategy) {
3620     case TAP_MULTIPLE_TARGETS_STRATEGY_ZOOM:
3621       handled = webview()->zoomToMultipleTargetsRect(zoom_rect);
3622       break;
3623     case TAP_MULTIPLE_TARGETS_STRATEGY_POPUP: {
3624       gfx::Size canvas_size =
3625           gfx::ToCeiledSize(gfx::ScaleSize(zoom_rect.size(), new_total_scale));
3626       cc::SharedBitmapManager* manager =
3627           RenderThreadImpl::current()->shared_bitmap_manager();
3628       scoped_ptr<cc::SharedBitmap> shared_bitmap =
3629           manager->AllocateSharedBitmap(canvas_size);
3630       CHECK(!!shared_bitmap);
3631       {
3632         SkBitmap bitmap;
3633         SkImageInfo info = SkImageInfo::MakeN32Premul(canvas_size.width(),
3634                                                       canvas_size.height());
3635         bitmap.installPixels(info, shared_bitmap->pixels(), info.minRowBytes());
3636         SkCanvas canvas(bitmap);
3637
3638         // TODO(trchen): Cleanup the device scale factor mess.
3639         // device scale will be applied in WebKit
3640         // --> zoom_rect doesn't include device scale,
3641         //     but WebKit will still draw on zoom_rect * device_scale_factor_
3642         canvas.scale(new_total_scale / device_scale_factor_,
3643                      new_total_scale / device_scale_factor_);
3644         canvas.translate(-zoom_rect.x() * device_scale_factor_,
3645                          -zoom_rect.y() * device_scale_factor_);
3646
3647         DCHECK(webwidget_->isAcceleratedCompositingActive());
3648         // TODO(aelias): The disambiguation popup should be composited so we
3649         // don't have to call this method.
3650         webwidget_->paintCompositedDeprecated(&canvas, zoom_rect);
3651       }
3652
3653       gfx::Rect zoom_rect_in_screen =
3654           zoom_rect - gfx::Vector2d(inner_viewport_offset.width,
3655                                     inner_viewport_offset.height);
3656
3657       gfx::Rect physical_window_zoom_rect = gfx::ToEnclosingRect(
3658           ClientRectToPhysicalWindowRect(gfx::RectF(zoom_rect_in_screen)));
3659
3660       Send(new ViewHostMsg_ShowDisambiguationPopup(routing_id_,
3661                                                    physical_window_zoom_rect,
3662                                                    canvas_size,
3663                                                    shared_bitmap->id()));
3664       cc::SharedBitmapId id = shared_bitmap->id();
3665       disambiguation_bitmaps_[id] = shared_bitmap.release();
3666       handled = true;
3667       break;
3668     }
3669     case TAP_MULTIPLE_TARGETS_STRATEGY_NONE:
3670       // No-op.
3671       break;
3672   }
3673
3674   return handled;
3675 }
3676 #endif  // defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
3677
3678 unsigned RenderViewImpl::GetLocalSessionHistoryLengthForTesting() const {
3679   return history_list_length_;
3680 }
3681
3682 void RenderViewImpl::SetFocusAndActivateForTesting(bool enable) {
3683   if (enable) {
3684     if (has_focus())
3685       return;
3686     OnSetActive(true);
3687     OnSetFocus(true);
3688   } else {
3689     if (!has_focus())
3690       return;
3691     OnSetFocus(false);
3692     OnSetActive(false);
3693   }
3694 }
3695
3696 void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
3697   ViewMsg_Resize_Params params;
3698   params.screen_info = screen_info_;
3699   params.screen_info.deviceScaleFactor = factor;
3700   params.new_size = size();
3701   params.visible_viewport_size = visible_viewport_size_;
3702   params.physical_backing_size =
3703       gfx::ToCeiledSize(gfx::ScaleSize(size(), factor));
3704   params.top_controls_shrink_blink_size = false;
3705   params.top_controls_height = 0.f;
3706   params.resizer_rect = WebRect();
3707   params.is_fullscreen_granted = is_fullscreen_granted();
3708   params.display_mode = display_mode_;
3709   OnResize(params);
3710 }
3711
3712 void RenderViewImpl::SetDeviceColorProfileForTesting(
3713     const std::vector<char>& color_profile) {
3714   SetDeviceColorProfile(color_profile);
3715 }
3716
3717 void RenderViewImpl::ForceResizeForTesting(const gfx::Size& new_size) {
3718   gfx::Rect new_window_rect(rootWindowRect().x,
3719                             rootWindowRect().y,
3720                             new_size.width(),
3721                             new_size.height());
3722   SetWindowRectSynchronously(new_window_rect);
3723 }
3724
3725 void RenderViewImpl::UseSynchronousResizeModeForTesting(bool enable) {
3726   resizing_mode_selector_->set_is_synchronous_mode(enable);
3727 }
3728
3729 void RenderViewImpl::EnableAutoResizeForTesting(const gfx::Size& min_size,
3730                                                 const gfx::Size& max_size) {
3731   OnEnableAutoResize(min_size, max_size);
3732 }
3733
3734 void RenderViewImpl::DisableAutoResizeForTesting(const gfx::Size& new_size) {
3735   OnDisableAutoResize(new_size);
3736 }
3737
3738 void RenderViewImpl::OnReleaseDisambiguationPopupBitmap(
3739     const cc::SharedBitmapId& id) {
3740   BitmapMap::iterator it = disambiguation_bitmaps_.find(id);
3741   DCHECK(it != disambiguation_bitmaps_.end());
3742   delete it->second;
3743   disambiguation_bitmaps_.erase(it);
3744 }
3745
3746 void RenderViewImpl::DidCommitCompositorFrame() {
3747   RenderWidget::DidCommitCompositorFrame();
3748   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
3749 }
3750
3751 void RenderViewImpl::SendUpdateFaviconURL(const std::vector<FaviconURL>& urls) {
3752   if (!urls.empty())
3753     Send(new ViewHostMsg_UpdateFaviconURL(routing_id_, urls));
3754 }
3755
3756 void RenderViewImpl::DidStopLoadingIcons() {
3757   int icon_types = WebIconURL::TypeFavicon | WebIconURL::TypeTouchPrecomposed |
3758       WebIconURL::TypeTouch;
3759
3760   // Favicons matter only for the top-level frame. If it is a WebRemoteFrame,
3761   // just return early.
3762   if (webview()->mainFrame()->isWebRemoteFrame())
3763     return;
3764
3765   WebVector<WebIconURL> icon_urls =
3766       webview()->mainFrame()->iconURLs(icon_types);
3767
3768   std::vector<FaviconURL> urls;
3769   for (size_t i = 0; i < icon_urls.size(); i++) {
3770     WebURL url = icon_urls[i].iconURL();
3771     std::vector<gfx::Size> sizes;
3772     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
3773     if (!url.isEmpty())
3774       urls.push_back(
3775           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
3776   }
3777   SendUpdateFaviconURL(urls);
3778 }
3779
3780 }  // namespace content