content/renderer/render_view_impl.h

   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 #ifndef CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
   6 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
   7
   8 #include <deque>
   9 #include <map>
  10 #include <set>
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/basictypes.h"
  15 #include "base/gtest_prod_util.h"
  16 #include "base/id_map.h"
  17 #include "base/memory/linked_ptr.h"
  18 #include "base/memory/weak_ptr.h"
  19 #include "base/observer_list.h"
  20 #include "base/process.h"
  21 #include "base/timer.h"
  22 #include "base/values.h"
  23 #include "build/build_config.h"
  24 #include "content/common/content_export.h"
  25 #include "content/common/drag_event_source_info.h"
  26 #include "content/common/edit_command.h"
  27 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  28 #include "content/common/navigation_gesture.h"
  29 #include "content/common/view_message_enums.h"
  30 #include "content/public/common/javascript_message_type.h"
  31 #include "content/public/common/page_zoom.h"
  32 #include "content/public/common/referrer.h"
  33 #include "content/public/common/renderer_preferences.h"
  34 #include "content/public/common/stop_find_action.h"
  35 #include "content/public/renderer/render_view.h"
  36 #include "content/renderer/mouse_lock_dispatcher.h"
  37 #include "content/renderer/render_view_pepper_helper.h"
  38 #include "content/renderer/render_widget.h"
  39 #include "content/renderer/renderer_webcookiejar_impl.h"
  40 #include "ipc/ipc_platform_file.h"
  41 #include "third_party/WebKit/Source/Platform/chromium/public/WebFileSystem.h"
  42 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
  43 #include "third_party/WebKit/Source/WebKit/chromium/public/WebConsoleMessage.h"
  44 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h"
  45 #include "third_party/WebKit/Source/WebKit/chromium/public/WebHistoryItem.h"
  46 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIconURL.h"
  47 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
  48 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNavigationType.h"
  49 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
  50 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageSerializerClient.h"
  51 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageVisibilityState.h"
  52 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
  53 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h"
  54 #include "ui/surface/transport_dib.h"
  55 #include "webkit/glue/webpreferences.h"
  56 #include "webkit/media/webmediaplayer_delegate.h"
  57 #include "webkit/plugins/npapi/webplugin_page_delegate.h"
  58
  59 #if defined(OS_ANDROID)
  60 #include "content/renderer/android/content_detector.h"
  61 #include "third_party/WebKit/Source/WebKit/chromium/public/WebContentDetectionResult.h"
  62 #endif
  63
  64 #if defined(COMPILER_MSVC)
  65 // RenderViewImpl is a diamond-shaped hierarchy, with WebWidgetClient at the
  66 // root. VS warns when we inherit the WebWidgetClient method implementations
  67 // from RenderWidget.  It's safe to ignore that warning.
  68 #pragma warning(disable: 4250)
  69 #endif
  70
  71 class CommandLine;
  72 class PepperDeviceTest;
  73 class SkBitmap;
  74 struct PP_NetAddress_Private;
  75 struct ViewMsg_Navigate_Params;
  76 struct ViewMsg_PostMessage_Params;
  77 struct ViewMsg_StopFinding_Params;
  78 struct ViewMsg_SwapOut_Params;
  79 struct WebDropData;
  80
  81 namespace ui {
  82 struct SelectedFileInfo;
  83 }  // namespace ui
  84
  85 namespace webkit {
  86
  87 namespace ppapi {
  88 class PluginInstance;
  89 }  // namespace ppapi
  90
  91 }  // namespace webkit
  92
  93 namespace webkit_glue {
  94 class ImageResourceFetcher;
  95 class ResourceFetcher;
  96 }
  97
  98 #if defined(OS_ANDROID)
  99 namespace webkit_media {
 100 class MediaPlayerBridgeManagerImpl;
 101 class WebMediaPlayerManagerAndroid;
 102 }
 103 #endif
 104
 105 namespace WebKit {
 106 class WebApplicationCacheHost;
 107 class WebApplicationCacheHostClient;
 108 class WebDOMMessageEvent;
 109 class WebDataSource;
 110 class WebDateTimeChooserCompletion;
 111 class WebDragData;
 112 class WebGeolocationClient;
 113 class WebGestureEvent;
 114 class WebIconURL;
 115 class WebImage;
 116 class WebPeerConnection00Handler;
 117 class WebPeerConnection00HandlerClient;
 118 class WebMediaPlayer;
 119 class WebMediaPlayerClient;
 120 class WebMouseEvent;
 121 class WebPeerConnectionHandler;
 122 class WebPeerConnectionHandlerClient;
 123 class WebSocketStreamHandle;
 124 class WebSpeechInputController;
 125 class WebSpeechInputListener;
 126 class WebSpeechRecognizer;
 127 class WebStorageNamespace;
 128 class WebTouchEvent;
 129 class WebURLRequest;
 130 class WebUserMediaClient;
 131 struct WebActiveWheelFlingParameters;
 132 struct WebDateTimeChooserParams;
 133 struct WebFileChooserParams;
 134 struct WebFindOptions;
 135 struct WebMediaPlayerAction;
 136 struct WebPluginAction;
 137 struct WebPoint;
 138 struct WebWindowFeatures;
 139
 140 #if defined(OS_ANDROID)
 141 class WebHitTestResult;
 142 #endif
 143 }
 144
 145 namespace content {
 146 class BrowserPluginManager;
 147 class DeviceOrientationDispatcher;
 148 class DevToolsAgent;
 149 class DocumentState;
 150 class DomAutomationController;
 151 class ExternalPopupMenu;
 152 class FaviconHelper;
 153 class GeolocationDispatcher;
 154 class InputTagSpeechDispatcher;
 155 class JavaBridgeDispatcher;
 156 class LoadProgressTracker;
 157 class MediaStreamDispatcher;
 158 class MediaStreamImpl;
 159 class MouseLockDispatcher;
 160 class NavigationState;
 161 class NotificationProvider;
 162 class RenderViewObserver;
 163 class RenderViewTest;
 164 class RendererAccessibility;
 165 class RendererDateTimePicker;
 166 class RendererPpapiHost;
 167 class RendererWebColorChooserImpl;
 168 class RenderWidgetFullscreenPepper;
 169 class SpeechRecognitionDispatcher;
 170 class WebPluginDelegateProxy;
 171 struct CustomContextMenuContext;
 172 struct FaviconURL;
 173 struct FileChooserParams;
 174 struct RenderViewImplParams;
 175
 176 #if defined(OS_ANDROID)
 177 class WebMediaPlayerProxyImplAndroid;
 178 #endif
 179
 180 // We need to prevent a page from trying to create infinite popups. It is not
 181 // as simple as keeping a count of the number of immediate children
 182 // popups. Having an html file that window.open()s itself would create
 183 // an unlimited chain of RenderViews who only have one RenderView child.
 184 //
 185 // Therefore, each new top level RenderView creates a new counter and shares it
 186 // with all its children and grandchildren popup RenderViewImpls created with
 187 // createView() to have a sort of global limit for the page so no more than
 188 // kMaximumNumberOfPopups popups are created.
 189 //
 190 // This is a RefCounted holder of an int because I can't say
 191 // scoped_refptr<int>.
 192 typedef base::RefCountedData<int> SharedRenderViewCounter;
 193
 194 //
 195 // RenderView is an object that manages a WebView object, and provides a
 196 // communication interface with an embedding application process
 197 //
 198 class CONTENT_EXPORT RenderViewImpl
 199     : public RenderWidget,
 200       NON_EXPORTED_BASE(public WebKit::WebViewClient),
 201       NON_EXPORTED_BASE(public WebKit::WebFrameClient),
 202       NON_EXPORTED_BASE(public WebKit::WebPageSerializerClient),
 203       public RenderView,
 204       NON_EXPORTED_BASE(public webkit::npapi::WebPluginPageDelegate),
 205       NON_EXPORTED_BASE(public webkit_media::WebMediaPlayerDelegate),
 206       public base::SupportsWeakPtr<RenderViewImpl> {
 207  public:
 208   // Creates a new RenderView. If this is a blocked popup or as a new tab,
 209   // opener_id is the routing ID of the RenderView responsible for creating this
 210   // RenderView. |counter| is either a currently initialized counter, or NULL
 211   // (in which case we treat this RenderView as a top level window).
 212   static RenderViewImpl* Create(
 213       int32 opener_id,
 214       const RendererPreferences& renderer_prefs,
 215       const webkit_glue::WebPreferences& webkit_prefs,
 216       SharedRenderViewCounter* counter,
 217       int32 routing_id,
 218       int32 surface_id,
 219       int64 session_storage_namespace_id,
 220       const string16& frame_name,
 221       bool is_renderer_created,
 222       bool swapped_out,
 223       int32 next_page_id,
 224       const WebKit::WebScreenInfo& screen_info,
 225       AccessibilityMode accessibility_mode,
 226       bool allow_partial_swap);
 227
 228   // Used by content_layouttest_support to hook into the creation of
 229   // RenderViewImpls.
 230   static void InstallCreateHook(
 231       RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*));
 232
 233   // Returns the RenderViewImpl containing the given WebView.
 234   static RenderViewImpl* FromWebView(WebKit::WebView* webview);
 235
 236   // Returns the RenderViewImpl for the given routing ID.
 237   static RenderViewImpl* FromRoutingID(int routing_id);
 238
 239   // May return NULL when the view is closing.
 240   WebKit::WebView* webview() const;
 241
 242   int history_list_offset() const { return history_list_offset_; }
 243
 244   const webkit_glue::WebPreferences& webkit_preferences() const {
 245     return webkit_preferences_;
 246   }
 247
 248   void set_send_content_state_immediately(bool value) {
 249     send_content_state_immediately_ = value;
 250   }
 251
 252   MediaStreamDispatcher* media_stream_dispatcher() {
 253     return media_stream_dispatcher_;
 254   }
 255
 256   MouseLockDispatcher* mouse_lock_dispatcher() {
 257     return mouse_lock_dispatcher_;
 258   }
 259
 260 #if defined(OS_ANDROID)
 261   webkit_media::WebMediaPlayerManagerAndroid* media_player_manager() {
 262     return media_player_manager_.get();
 263   }
 264 #endif
 265
 266   // Lazily initialize this view's BrowserPluginManager and return it.
 267   BrowserPluginManager* browser_plugin_manager();
 268
 269   // Functions to add and remove observers for this object.
 270   void AddObserver(RenderViewObserver* observer);
 271   void RemoveObserver(RenderViewObserver* observer);
 272
 273   // Adds the given file chooser request to the file_chooser_completion_ queue
 274   // (see that var for more) and requests the chooser be displayed if there are
 275   // no other waiting items in the queue.
 276   //
 277   // Returns true if the chooser was successfully scheduled. False means we
 278   // didn't schedule anything.
 279   bool ScheduleFileChooser(const FileChooserParams& params,
 280                            WebKit::WebFileChooserCompletion* completion);
 281
 282   void LoadNavigationErrorPage(
 283       WebKit::WebFrame* frame,
 284       const WebKit::WebURLRequest& failed_request,
 285       const WebKit::WebURLError& error,
 286       const std::string& html,
 287       bool replace);
 288
 289   // Plugin-related functions --------------------------------------------------
 290   // (See also WebPluginPageDelegate implementation.)
 291
 292   // Notification that the given plugin has crashed.
 293   void PluginCrashed(const base::FilePath& plugin_path,
 294                      base::ProcessId plugin_pid);
 295
 296   // Creates a fullscreen container for a pepper plugin instance.
 297   RenderWidgetFullscreenPepper* CreatePepperFullscreenContainer(
 298       webkit::ppapi::PluginInstance* plugin);
 299
 300   // Informs the render view that a PPAPI plugin has gained or lost focus.
 301   void PpapiPluginFocusChanged();
 302
 303   // Informs the render view that a PPAPI plugin has changed text input status.
 304   void PpapiPluginTextInputTypeChanged();
 305   void PpapiPluginCaretPositionChanged();
 306
 307   // Cancels current composition.
 308   void PpapiPluginCancelComposition();
 309
 310   // Informs the render view that a PPAPI plugin has changed selection.
 311   void PpapiPluginSelectionChanged();
 312
 313   // Notification that a PPAPI plugin has been created.
 314   void PpapiPluginCreated(RendererPpapiHost* host);
 315
 316   // Retrieves the current caret position if a PPAPI plugin has focus.
 317   bool GetPpapiPluginCaretBounds(gfx::Rect* rect);
 318
 319   // Simulates IME events for testing purpose.
 320   void SimulateImeSetComposition(
 321       const string16& text,
 322       const std::vector<WebKit::WebCompositionUnderline>& underlines,
 323       int selection_start,
 324       int selection_end);
 325   void SimulateImeConfirmComposition(const string16& text,
 326                                      const ui::Range& replacement_range);
 327
 328 #if defined(OS_MACOSX) || defined(OS_WIN)
 329   // Informs the render view that the given plugin has gained or lost focus.
 330   void PluginFocusChanged(bool focused, int plugin_id);
 331 #endif
 332
 333 #if defined(OS_MACOSX)
 334   // Starts plugin IME.
 335   void StartPluginIme();
 336 #endif
 337
 338   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 339   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 340
 341   // Helper function to retrieve information about a plugin for a URL and mime
 342   // type. Returns false if no plugin was found.
 343   // |actual_mime_type| is the actual mime type supported by the
 344   // plugin found that match the URL given (one for each item in
 345   // |info|).
 346   bool GetPluginInfo(const GURL& url,
 347                      const GURL& page_url,
 348                      const std::string& mime_type,
 349                      webkit::WebPluginInfo* plugin_info,
 350                      std::string* actual_mime_type);
 351
 352   void TransferActiveWheelFlingAnimation(
 353       const WebKit::WebActiveWheelFlingParameters& params);
 354
 355   // Returns true if the focused element is editable text from the perspective
 356   // of IME support (also used for on-screen keyboard). Works correctly inside
 357   // supported PPAPI plug-ins.
 358   bool HasIMETextFocus();
 359
 360   // Callback for use with GetWindowSnapshot.
 361   typedef base::Callback<void(
 362       const gfx::Size&, const std::vector<unsigned char>&)>
 363       WindowSnapshotCallback;
 364
 365   void GetWindowSnapshot(const WindowSnapshotCallback& callback);
 366
 367   // Dispatches the current navigation state to the browser. Called on a
 368   // periodic timer so we don't send too many messages.
 369   void SyncNavigationState();
 370
 371   // Returns the length of the session history of this RenderView. Note that
 372   // this only coincides with the actual length of the session history if this
 373   // RenderView is the currently active RenderView of a WebContents.
 374   unsigned GetLocalSessionHistoryLengthForTesting() const;
 375
 376   // Invokes OnSetFocus and marks the widget as active depending on the value
 377   // of |enable|. This is used for layout tests that need to control the focus
 378   // synchronously from the renderer.
 379   void SetFocusAndActivateForTesting(bool enable);
 380
 381   // Change the device scale factor and force the compositor to resize.
 382   void SetDeviceScaleFactorForTesting(float factor);
 383
 384   // IPC::Listener implementation ----------------------------------------------
 385
 386   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 387
 388   // WebKit::WebWidgetClient implementation ------------------------------------
 389
 390   // Most methods are handled by RenderWidget.
 391   virtual void didFocus();
 392   virtual void didBlur();
 393   virtual void show(WebKit::WebNavigationPolicy policy);
 394   virtual void runModal();
 395   virtual bool enterFullScreen();
 396   virtual void exitFullScreen();
 397   virtual bool requestPointerLock();
 398   virtual void requestPointerUnlock();
 399   virtual bool isPointerLocked();
 400   virtual void didActivateCompositor(int input_handler_identifier);
 401   virtual void didHandleGestureEvent(const WebKit::WebGestureEvent& event,
 402                                      bool event_cancelled) OVERRIDE;
 403
 404   // WebKit::WebViewClient implementation --------------------------------------
 405
 406   virtual WebKit::WebView* createView(
 407       WebKit::WebFrame* creator,
 408       const WebKit::WebURLRequest& request,
 409       const WebKit::WebWindowFeatures& features,
 410       const WebKit::WebString& frame_name,
 411       WebKit::WebNavigationPolicy policy);
 412   virtual WebKit::WebWidget* createPopupMenu(WebKit::WebPopupType popup_type);
 413   virtual WebKit::WebExternalPopupMenu* createExternalPopupMenu(
 414       const WebKit::WebPopupMenuInfo& popup_menu_info,
 415       WebKit::WebExternalPopupMenuClient* popup_menu_client);
 416   virtual WebKit::WebStorageNamespace* createSessionStorageNamespace(
 417       unsigned quota);
 418   virtual void didAddMessageToConsole(
 419       const WebKit::WebConsoleMessage& message,
 420       const WebKit::WebString& source_name,
 421       unsigned source_line);
 422   virtual void printPage(WebKit::WebFrame* frame);
 423   virtual WebKit::WebNotificationPresenter* notificationPresenter();
 424   virtual bool enumerateChosenDirectory(
 425       const WebKit::WebString& path,
 426       WebKit::WebFileChooserCompletion* chooser_completion);
 427   virtual void initializeHelperPluginWebFrame(WebKit::WebHelperPlugin*);
 428   virtual void didStartLoading();
 429   virtual void didStopLoading();
 430   virtual void didChangeLoadProgress(WebKit::WebFrame* frame,
 431                                      double load_progress);
 432   virtual void didCancelCompositionOnSelectionChange();
 433   virtual void didChangeSelection(bool is_selection_empty);
 434   virtual void didExecuteCommand(const WebKit::WebString& command_name);
 435   virtual bool handleCurrentKeyboardEvent();
 436   virtual WebKit::WebColorChooser* createColorChooser(
 437       WebKit::WebColorChooserClient*, const WebKit::WebColor& initial_color);
 438   virtual bool runFileChooser(
 439       const WebKit::WebFileChooserParams& params,
 440       WebKit::WebFileChooserCompletion* chooser_completion);
 441   virtual void runModalAlertDialog(WebKit::WebFrame* frame,
 442                                    const WebKit::WebString& message);
 443   virtual bool runModalConfirmDialog(WebKit::WebFrame* frame,
 444                                      const WebKit::WebString& message);
 445   virtual bool runModalPromptDialog(WebKit::WebFrame* frame,
 446                                     const WebKit::WebString& message,
 447                                     const WebKit::WebString& default_value,
 448                                     WebKit::WebString* actual_value);
 449   virtual bool runModalBeforeUnloadDialog(WebKit::WebFrame* frame,
 450                                           const WebKit::WebString& message);
 451   virtual void showContextMenu(WebKit::WebFrame* frame,
 452                                const WebKit::WebContextMenuData& data);
 453   virtual void setStatusText(const WebKit::WebString& text);
 454   virtual void setMouseOverURL(const WebKit::WebURL& url);
 455   virtual void setKeyboardFocusURL(const WebKit::WebURL& url);
 456   virtual void startDragging(WebKit::WebFrame* frame,
 457                              const WebKit::WebDragData& data,
 458                              WebKit::WebDragOperationsMask mask,
 459                              const WebKit::WebImage& image,
 460                              const WebKit::WebPoint& imageOffset);
 461   virtual bool acceptsLoadDrops();
 462   virtual void focusNext();
 463   virtual void focusPrevious();
 464   virtual void focusedNodeChanged(const WebKit::WebNode& node);
 465   virtual void numberOfWheelEventHandlersChanged(unsigned num_handlers);
 466   virtual void didUpdateLayout();
 467 #if defined(OS_ANDROID)
 468   virtual bool didTapMultipleTargets(
 469       const WebKit::WebGestureEvent& event,
 470       const WebKit::WebVector<WebKit::WebRect>& target_rects);
 471 #endif
 472   virtual void navigateBackForwardSoon(int offset);
 473   virtual int historyBackListCount();
 474   virtual int historyForwardListCount();
 475   virtual void postAccessibilityNotification(
 476       const WebKit::WebAccessibilityObject& obj,
 477       WebKit::WebAccessibilityNotification notification);
 478   virtual void didUpdateInspectorSetting(const WebKit::WebString& key,
 479                                          const WebKit::WebString& value);
 480   virtual WebKit::WebGeolocationClient* geolocationClient();
 481   virtual WebKit::WebSpeechInputController* speechInputController(
 482       WebKit::WebSpeechInputListener* listener);
 483   virtual WebKit::WebSpeechRecognizer* speechRecognizer();
 484   virtual WebKit::WebDeviceOrientationClient* deviceOrientationClient();
 485   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 486   virtual void zoomLevelChanged();
 487   virtual void registerProtocolHandler(const WebKit::WebString& scheme,
 488                                        const WebKit::WebString& base_url,
 489                                        const WebKit::WebString& url,
 490                                        const WebKit::WebString& title);
 491   virtual WebKit::WebPageVisibilityState visibilityState() const;
 492   virtual WebKit::WebUserMediaClient* userMediaClient();
 493   virtual void draggableRegionsChanged();
 494
 495 #if defined(OS_ANDROID)
 496   virtual void scheduleContentIntent(const WebKit::WebURL& intent);
 497   virtual void cancelScheduledContentIntents();
 498   virtual WebKit::WebContentDetectionResult detectContentAround(
 499       const WebKit::WebHitTestResult& touch_hit);
 500
 501   // Only used on Android since all other platforms implement
 502   // date and time input fields using MULTIPLE_FIELDS_UI
 503   virtual bool openDateTimeChooser(const WebKit::WebDateTimeChooserParams&,
 504                                    WebKit::WebDateTimeChooserCompletion*);
 505 #endif
 506
 507   // WebKit::WebFrameClient implementation -------------------------------------
 508
 509   virtual WebKit::WebPlugin* createPlugin(
 510       WebKit::WebFrame* frame,
 511       const WebKit::WebPluginParams& params);
 512   virtual WebKit::WebSharedWorker* createSharedWorker(
 513       WebKit::WebFrame* frame, const WebKit::WebURL& url,
 514       const WebKit::WebString& name, unsigned long long documentId);
 515   virtual WebKit::WebMediaPlayer* createMediaPlayer(
 516       WebKit::WebFrame* frame,
 517       const WebKit::WebURL& url,
 518       WebKit::WebMediaPlayerClient* client);
 519   virtual WebKit::WebApplicationCacheHost* createApplicationCacheHost(
 520       WebKit::WebFrame* frame,
 521       WebKit::WebApplicationCacheHostClient* client);
 522   virtual WebKit::WebCookieJar* cookieJar(WebKit::WebFrame* frame);
 523   virtual void didCreateFrame(WebKit::WebFrame* parent,
 524                               WebKit::WebFrame* child);
 525   virtual void didDisownOpener(WebKit::WebFrame* frame);
 526   virtual void frameDetached(WebKit::WebFrame* frame);
 527   virtual void willClose(WebKit::WebFrame* frame);
 528   virtual void didChangeName(WebKit::WebFrame* frame,
 529                              const WebKit::WebString& name);
 530   virtual void loadURLExternally(WebKit::WebFrame* frame,
 531                                  const WebKit::WebURLRequest& request,
 532                                  WebKit::WebNavigationPolicy policy);
 533   virtual void loadURLExternally(WebKit::WebFrame* frame,
 534                                  const WebKit::WebURLRequest& request,
 535                                  WebKit::WebNavigationPolicy policy,
 536                                  const WebKit::WebString& suggested_name);
 537   virtual WebKit::WebNavigationPolicy decidePolicyForNavigation(
 538       WebKit::WebFrame* frame,
 539       const WebKit::WebURLRequest& request,
 540       WebKit::WebNavigationType type,
 541       const WebKit::WebNode&,
 542       WebKit::WebNavigationPolicy default_policy,
 543       bool is_redirect);
 544   virtual bool canHandleRequest(WebKit::WebFrame* frame,
 545                                 const WebKit::WebURLRequest& request);
 546   virtual WebKit::WebURLError cannotHandleRequestError(
 547       WebKit::WebFrame* frame,
 548       const WebKit::WebURLRequest& request);
 549   virtual WebKit::WebURLError cancelledError(
 550       WebKit::WebFrame* frame,
 551       const WebKit::WebURLRequest& request);
 552   virtual void unableToImplementPolicyWithError(
 553       WebKit::WebFrame* frame,
 554       const WebKit::WebURLError& error);
 555   virtual void willSendSubmitEvent(WebKit::WebFrame* frame,
 556                                    const WebKit::WebFormElement& form);
 557   virtual void willSubmitForm(WebKit::WebFrame* frame,
 558                               const WebKit::WebFormElement& form);
 559   virtual void willPerformClientRedirect(WebKit::WebFrame* frame,
 560                                          const WebKit::WebURL& from,
 561                                          const WebKit::WebURL& to,
 562                                          double interval,
 563                                          double fire_time);
 564   virtual void didCancelClientRedirect(WebKit::WebFrame* frame);
 565   virtual void didCompleteClientRedirect(WebKit::WebFrame* frame,
 566                                          const WebKit::WebURL& from);
 567   virtual void didCreateDataSource(WebKit::WebFrame* frame,
 568                                    WebKit::WebDataSource* datasource);
 569   virtual void didStartProvisionalLoad(WebKit::WebFrame* frame);
 570   virtual void didReceiveServerRedirectForProvisionalLoad(
 571       WebKit::WebFrame* frame);
 572   virtual void didFailProvisionalLoad(WebKit::WebFrame* frame,
 573                                       const WebKit::WebURLError& error);
 574   virtual void didReceiveDocumentData(WebKit::WebFrame* frame,
 575                                       const char* data, size_t length,
 576                                       bool& prevent_default);
 577   virtual void didCommitProvisionalLoad(WebKit::WebFrame* frame,
 578                                         bool is_new_navigation);
 579   virtual void didClearWindowObject(WebKit::WebFrame* frame);
 580   virtual void didCreateDocumentElement(WebKit::WebFrame* frame);
 581   virtual void didReceiveTitle(WebKit::WebFrame* frame,
 582                                const WebKit::WebString& title,
 583                                WebKit::WebTextDirection direction);
 584   virtual void didChangeIcon(WebKit::WebFrame*,
 585                              WebKit::WebIconURL::Type) OVERRIDE;
 586   virtual void didFinishDocumentLoad(WebKit::WebFrame* frame);
 587   virtual void didHandleOnloadEvents(WebKit::WebFrame* frame);
 588   virtual void didFailLoad(WebKit::WebFrame* frame,
 589                            const WebKit::WebURLError& error);
 590   virtual void didFinishLoad(WebKit::WebFrame* frame);
 591   virtual void didNavigateWithinPage(WebKit::WebFrame* frame,
 592                                      bool is_new_navigation);
 593   virtual void didUpdateCurrentHistoryItem(WebKit::WebFrame* frame);
 594   virtual void assignIdentifierToRequest(WebKit::WebFrame* frame,
 595                                          unsigned identifier,
 596                                          const WebKit::WebURLRequest& request);
 597   virtual void willSendRequest(WebKit::WebFrame* frame,
 598                                unsigned identifier,
 599                                WebKit::WebURLRequest& request,
 600                                const WebKit::WebURLResponse& redirect_response);
 601   virtual void didReceiveResponse(WebKit::WebFrame* frame,
 602                                   unsigned identifier,
 603                                   const WebKit::WebURLResponse& response);
 604   virtual void didFinishResourceLoad(WebKit::WebFrame* frame,
 605                                      unsigned identifier);
 606   virtual void didFailResourceLoad(WebKit::WebFrame* frame,
 607                                    unsigned identifier,
 608                                    const WebKit::WebURLError& error);
 609   virtual void didLoadResourceFromMemoryCache(
 610       WebKit::WebFrame* frame,
 611       const WebKit::WebURLRequest& request,
 612       const WebKit::WebURLResponse&);
 613   virtual void didDisplayInsecureContent(WebKit::WebFrame* frame);
 614   virtual void didRunInsecureContent(
 615       WebKit::WebFrame* frame,
 616       const WebKit::WebSecurityOrigin& origin,
 617       const WebKit::WebURL& target);
 618   virtual void didExhaustMemoryAvailableForScript(WebKit::WebFrame* frame);
 619   virtual void didCreateScriptContext(WebKit::WebFrame* frame,
 620                                       v8::Handle<v8::Context>,
 621                                       int extension_group,
 622                                       int world_id);
 623   virtual void willReleaseScriptContext(WebKit::WebFrame* frame,
 624                                         v8::Handle<v8::Context>,
 625                                         int world_id);
 626   virtual void didChangeScrollOffset(WebKit::WebFrame* frame);
 627   virtual void willInsertBody(WebKit::WebFrame* frame) OVERRIDE;
 628   virtual void didFirstVisuallyNonEmptyLayout(WebKit::WebFrame*) OVERRIDE;
 629   virtual void didChangeContentsSize(WebKit::WebFrame* frame,
 630                                      const WebKit::WebSize& size);
 631   virtual void reportFindInPageMatchCount(int request_id,
 632                                           int count,
 633                                           bool final_update);
 634   virtual void reportFindInPageSelection(int request_id,
 635                                          int active_match_ordinal,
 636                                          const WebKit::WebRect& sel);
 637   virtual void openFileSystem(WebKit::WebFrame* frame,
 638                               WebKit::WebFileSystemType type,
 639                               long long size,
 640                               bool create,
 641                               WebKit::WebFileSystemCallbacks* callbacks);
 642   virtual void deleteFileSystem(WebKit::WebFrame* frame,
 643                                 WebKit::WebFileSystemType type,
 644                                 WebKit::WebFileSystemCallbacks* callbacks);
 645   virtual void queryStorageUsageAndQuota(
 646       WebKit::WebFrame* frame,
 647       WebKit::WebStorageQuotaType type,
 648       WebKit::WebStorageQuotaCallbacks* callbacks);
 649   virtual void requestStorageQuota(
 650       WebKit::WebFrame* frame,
 651       WebKit::WebStorageQuotaType type,
 652       unsigned long long requested_size,
 653       WebKit::WebStorageQuotaCallbacks* callbacks);
 654   virtual void willOpenSocketStream(
 655       WebKit::WebSocketStreamHandle* handle);
 656   virtual void willStartUsingPeerConnectionHandler(WebKit::WebFrame* frame,
 657       WebKit::WebRTCPeerConnectionHandler* handler) OVERRIDE;
 658   virtual bool willCheckAndDispatchMessageEvent(
 659       WebKit::WebFrame* sourceFrame,
 660       WebKit::WebFrame* targetFrame,
 661       WebKit::WebSecurityOrigin targetOrigin,
 662       WebKit::WebDOMMessageEvent event) OVERRIDE;
 663   virtual WebKit::WebString userAgentOverride(
 664       WebKit::WebFrame* frame,
 665       const WebKit::WebURL& url) OVERRIDE;
 666   virtual WebKit::WebString doNotTrackValue(WebKit::WebFrame* frame) OVERRIDE;
 667   virtual bool allowWebGL(WebKit::WebFrame* frame, bool default_value) OVERRIDE;
 668   virtual void didLoseWebGLContext(
 669       WebKit::WebFrame* frame,
 670       int arb_robustness_status_code) OVERRIDE;
 671
 672   // WebKit::WebPageSerializerClient implementation ----------------------------
 673
 674   virtual void didSerializeDataForFrame(
 675       const WebKit::WebURL& frame_url,
 676       const WebKit::WebCString& data,
 677       PageSerializationStatus status) OVERRIDE;
 678
 679   // RenderView implementation -------------------------------------------------
 680
 681   virtual bool Send(IPC::Message* message) OVERRIDE;
 682   virtual int GetRoutingID() const OVERRIDE;
 683   virtual int GetPageId() const OVERRIDE;
 684   virtual gfx::Size GetSize() const OVERRIDE;
 685   virtual webkit_glue::WebPreferences& GetWebkitPreferences() OVERRIDE;
 686   virtual void SetWebkitPreferences(
 687       const webkit_glue::WebPreferences& preferences) OVERRIDE;
 688   virtual WebKit::WebView* GetWebView() OVERRIDE;
 689   virtual WebKit::WebNode GetFocusedNode() const OVERRIDE;
 690   virtual WebKit::WebNode GetContextMenuNode() const OVERRIDE;
 691   virtual bool IsEditableNode(const WebKit::WebNode& node) const OVERRIDE;
 692   virtual WebKit::WebPlugin* CreatePlugin(
 693       WebKit::WebFrame* frame,
 694       const webkit::WebPluginInfo& info,
 695       const WebKit::WebPluginParams& params) OVERRIDE;
 696   virtual void EvaluateScript(const string16& frame_xpath,
 697                               const string16& jscript,
 698                               int id,
 699                               bool notify_result) OVERRIDE;
 700   virtual bool ShouldDisplayScrollbars(int width, int height) const OVERRIDE;
 701   virtual int GetEnabledBindings() const OVERRIDE;
 702   virtual bool GetContentStateImmediately() const OVERRIDE;
 703   virtual float GetFilteredTimePerFrame() const OVERRIDE;
 704   virtual int ShowContextMenu(ContextMenuClient* client,
 705                               const ContextMenuParams& params) OVERRIDE;
 706   virtual void CancelContextMenu(int request_id) OVERRIDE;
 707   virtual WebKit::WebPageVisibilityState GetVisibilityState() const OVERRIDE;
 708   virtual void RunModalAlertDialog(WebKit::WebFrame* frame,
 709                                    const WebKit::WebString& message) OVERRIDE;
 710   virtual void LoadURLExternally(
 711       WebKit::WebFrame* frame,
 712       const WebKit::WebURLRequest& request,
 713       WebKit::WebNavigationPolicy policy) OVERRIDE;
 714   virtual void Repaint(const gfx::Size& size) OVERRIDE;
 715   virtual void SetEditCommandForNextKeyEvent(const std::string& name,
 716                                              const std::string& value) OVERRIDE;
 717   virtual void ClearEditCommands() OVERRIDE;
 718   virtual SSLStatus GetSSLStatusOfFrame(WebKit::WebFrame* frame) const OVERRIDE;
 719 #if defined(OS_ANDROID)
 720   virtual skia::RefPtr<SkPicture> CapturePicture() OVERRIDE;
 721 #endif
 722
 723   // webkit_glue::WebPluginPageDelegate implementation -------------------------
 724
 725   virtual webkit::npapi::WebPluginDelegate* CreatePluginDelegate(
 726       const base::FilePath& file_path,
 727       const std::string& mime_type) OVERRIDE;
 728   virtual WebKit::WebPlugin* CreatePluginReplacement(
 729       const base::FilePath& file_path) OVERRIDE;
 730   virtual void CreatedPluginWindow(gfx::PluginWindowHandle handle) OVERRIDE;
 731   virtual void WillDestroyPluginWindow(gfx::PluginWindowHandle handle) OVERRIDE;
 732   virtual void DidMovePlugin(
 733       const webkit::npapi::WebPluginGeometry& move) OVERRIDE;
 734   virtual void DidStartLoadingForPlugin() OVERRIDE;
 735   virtual void DidStopLoadingForPlugin() OVERRIDE;
 736   virtual WebKit::WebCookieJar* GetCookieJar() OVERRIDE;
 737
 738   // webkit_media::WebMediaPlayerDelegate implementation -----------------------
 739
 740   virtual void DidPlay(WebKit::WebMediaPlayer* player) OVERRIDE;
 741   virtual void DidPause(WebKit::WebMediaPlayer* player) OVERRIDE;
 742   virtual void PlayerGone(WebKit::WebMediaPlayer* player) OVERRIDE;
 743
 744   // Please do not add your stuff randomly to the end here. If there is an
 745   // appropriate section, add it there. If not, there are some random functions
 746   // nearer to the top you can add it to.
 747
 748   // Cannot use std::set unfortunately since linked_ptr<> does not support
 749   // operator<.
 750   typedef std::vector<linked_ptr<webkit_glue::ImageResourceFetcher> >
 751       ImageResourceFetcherList;
 752
 753  protected:
 754   // RenderWidget overrides:
 755   virtual void Close() OVERRIDE;
 756   virtual void OnResize(const gfx::Size& new_size,
 757                         const gfx::Size& physical_backing_size,
 758                         float overdraw_bottom_height,
 759                         const gfx::Rect& resizer_rect,
 760                         bool is_fullscreen) OVERRIDE;
 761   virtual void WillInitiatePaint() OVERRIDE;
 762   virtual void DidInitiatePaint() OVERRIDE;
 763   virtual void DidFlushPaint() OVERRIDE;
 764   virtual webkit::ppapi::PluginInstance* GetBitmapForOptimizedPluginPaint(
 765       const gfx::Rect& paint_bounds,
 766       TransportDIB** dib,
 767       gfx::Rect* location,
 768       gfx::Rect* clip,
 769       float* scale_factor) OVERRIDE;
 770   virtual gfx::Vector2d GetScrollOffset() OVERRIDE;
 771   virtual void DidHandleKeyEvent() OVERRIDE;
 772   virtual bool WillHandleMouseEvent(
 773       const WebKit::WebMouseEvent& event) OVERRIDE;
 774   virtual bool WillHandleGestureEvent(
 775       const WebKit::WebGestureEvent& event) OVERRIDE;
 776   virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event) OVERRIDE;
 777   virtual void DidHandleTouchEvent(const WebKit::WebTouchEvent& event) OVERRIDE;
 778   virtual bool HasTouchEventHandlersAt(const gfx::Point& point) const OVERRIDE;
 779   virtual void OnSetFocus(bool enable) OVERRIDE;
 780   virtual void OnWasHidden() OVERRIDE;
 781   virtual void OnWasShown(bool needs_repainting) OVERRIDE;
 782   virtual GURL GetURLForGraphicsContext3D() OVERRIDE;
 783   virtual bool ForceCompositingModeEnabled() OVERRIDE;
 784   virtual void OnImeSetComposition(
 785       const string16& text,
 786       const std::vector<WebKit::WebCompositionUnderline>& underlines,
 787       int selection_start,
 788       int selection_end) OVERRIDE;
 789   virtual void OnImeConfirmComposition(
 790       const string16& text, const ui::Range& replacement_range) OVERRIDE;
 791   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
 792   virtual ui::TextInputType GetTextInputType() OVERRIDE;
 793   virtual void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) OVERRIDE;
 794   virtual void GetCompositionCharacterBounds(
 795       std::vector<gfx::Rect>* character_bounds) OVERRIDE;
 796   virtual bool CanComposeInline() OVERRIDE;
 797   virtual void DidCommitCompositorFrame() OVERRIDE;
 798   virtual void InstrumentWillBeginFrame() OVERRIDE;
 799   virtual void InstrumentDidBeginFrame() OVERRIDE;
 800   virtual void InstrumentDidCancelFrame() OVERRIDE;
 801   virtual void InstrumentWillComposite() OVERRIDE;
 802   virtual bool AllowPartialSwap() const OVERRIDE;
 803
 804  protected:
 805   explicit RenderViewImpl(RenderViewImplParams* params);
 806
 807   void Initialize(RenderViewImplParams* params);
 808
 809   // Do not delete directly.  This class is reference counted.
 810   virtual ~RenderViewImpl();
 811
 812  private:
 813   // For unit tests.
 814   friend class ExternalPopupMenuTest;
 815   friend class PepperDeviceTest;
 816   friend class RendererAccessibilityTest;
 817   friend class RenderViewTest;
 818
 819   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuRemoveTest, RemoveOnChange);
 820   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, NormalCase);
 821   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, ShowPopupThenNavigate);
 822   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
 823   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 824                            DontIgnoreBackAfterNavEntryLimit);
 825   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
 826   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
 827   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
 828   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
 829   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnExtendSelectionAndDelete);
 830   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
 831   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeStateChanged);
 832   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
 833   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
 834   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
 835   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendSwapOutACK);
 836   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ReloadWhileSwappedOut);
 837   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 838                            SetEditableSelectionAndComposition);
 839   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
 840   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
 841   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 842                            GetCompositionCharacterBoundsTest);
 843   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
 844 #if defined(OS_MACOSX)
 845   FRIEND_TEST_ALL_PREFIXES(RenderViewTest, MacTestCmdUp);
 846 #endif
 847   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndPrune);
 848   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
 849   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
 850   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 851                            ShouldUpdateSelectionTextFromContextMenuParams);
 852
 853   typedef std::map<GURL, double> HostZoomLevels;
 854
 855   enum ErrorPageType {
 856     DNS_ERROR,
 857     HTTP_404,
 858     CONNECTION_ERROR,
 859   };
 860
 861   void UpdateURL(WebKit::WebFrame* frame);
 862   void UpdateTitle(WebKit::WebFrame* frame, const string16& title,
 863                    WebKit::WebTextDirection title_direction);
 864   void UpdateSessionHistory(WebKit::WebFrame* frame);
 865   void SendUpdateState(const WebKit::WebHistoryItem& item);
 866
 867   // Update current main frame's encoding and send it to browser window.
 868   // Since we want to let users see the right encoding info from menu
 869   // before finishing loading, we call the UpdateEncoding in
 870   // a) function:DidCommitLoadForFrame. When this function is called,
 871   // that means we have got first data. In here we try to get encoding
 872   // of page if it has been specified in http header.
 873   // b) function:DidReceiveTitle. When this function is called,
 874   // that means we have got specified title. Because in most of webpages,
 875   // title tags will follow meta tags. In here we try to get encoding of
 876   // page if it has been specified in meta tag.
 877   // c) function:DidFinishDocumentLoadForFrame. When this function is
 878   // called, that means we have got whole html page. In here we should
 879   // finally get right encoding of page.
 880   void UpdateEncoding(WebKit::WebFrame* frame,
 881                       const std::string& encoding_name);
 882
 883   void OpenURL(WebKit::WebFrame* frame,
 884                const GURL& url,
 885                const Referrer& referrer,
 886                WebKit::WebNavigationPolicy policy);
 887
 888   bool RunJavaScriptMessage(JavaScriptMessageType type,
 889                             const string16& message,
 890                             const string16& default_value,
 891                             const GURL& frame_url,
 892                             string16* result);
 893
 894   // Sends a message and runs a nested message loop.
 895   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 896
 897   // Called when the "pinned to left/right edge" state needs to be updated.
 898   void UpdateScrollState(WebKit::WebFrame* frame);
 899
 900   // IPC message handlers ------------------------------------------------------
 901   //
 902   // The documentation for these functions should be in
 903   // render_messages_internal.h for the message that the function is handling.
 904
 905   void OnAllowBindings(int enabled_bindings_flags);
 906   void OnAllowScriptToClose(bool script_can_close);
 907   void OnAsyncFileOpened(base::PlatformFileError error_code,
 908                          IPC::PlatformFileForTransit file_for_transit,
 909                          int message_id);
 910   void OnPpapiBrokerChannelCreated(int request_id,
 911                                    base::ProcessId broker_pid,
 912                                    const IPC::ChannelHandle& handle);
 913   void OnPpapiBrokerPermissionResult(int request_id, bool result);
 914   void OnCancelDownload(int32 download_id);
 915   void OnClearFocusedNode();
 916   void OnClosePage();
 917   void OnContextMenuClosed(const CustomContextMenuContext& custom_context);
 918   void OnCopy();
 919   void OnCopyImageAt(int x, int y);
 920   void OnCut();
 921   void OnCSSInsertRequest(const string16& frame_xpath,
 922                           const std::string& css);
 923   void OnCustomContextMenuAction(const CustomContextMenuContext& custom_context,
 924       unsigned action);
 925   void OnDelete();
 926   void OnSetName(const std::string& name);
 927   void OnDeterminePageLanguage();
 928   void OnDisableScrollbarsForSmallWindows(
 929       const gfx::Size& disable_scrollbars_size_limit);
 930   void OnDisassociateFromPopupCount();
 931   void OnDragSourceEndedOrMoved(const gfx::Point& client_point,
 932                                 const gfx::Point& screen_point,
 933                                 bool ended,
 934                                 WebKit::WebDragOperation drag_operation);
 935   void OnDragSourceSystemDragEnded();
 936   void OnDragTargetDrop(const gfx::Point& client_pt,
 937                         const gfx::Point& screen_pt,
 938                         int key_modifiers);
 939   void OnDragTargetDragEnter(const WebDropData& drop_data,
 940                              const gfx::Point& client_pt,
 941                              const gfx::Point& screen_pt,
 942                              WebKit::WebDragOperationsMask operations_allowed,
 943                              int key_modifiers);
 944   void OnDragTargetDragLeave();
 945   void OnDragTargetDragOver(const gfx::Point& client_pt,
 946                             const gfx::Point& screen_pt,
 947                             WebKit::WebDragOperationsMask operations_allowed,
 948                             int key_modifiers);
 949   void OnEnablePreferredSizeChangedMode();
 950   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 951   void OnDisableAutoResize(const gfx::Size& new_size);
 952   void OnEnumerateDirectoryResponse(int id,
 953                                     const std::vector<base::FilePath>& paths);
 954   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 955   void OnExtendSelectionAndDelete(int before, int after);
 956   void OnFileChooserResponse(
 957       const std::vector<ui::SelectedFileInfo>& files);
 958   void OnFind(int request_id, const string16&, const WebKit::WebFindOptions&);
 959   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 960   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 961       const std::vector<GURL>& links,
 962       const std::vector<base::FilePath>& local_paths,
 963       const base::FilePath& local_directory_name);
 964   void OnMediaPlayerActionAt(const gfx::Point& location,
 965                              const WebKit::WebMediaPlayerAction& action);
 966
 967   // Screen has rotated. 0 = default (portrait), 90 = one turn right, and so on.
 968   void OnOrientationChangeEvent(int orientation);
 969
 970   void OnPluginActionAt(const gfx::Point& location,
 971                         const WebKit::WebPluginAction& action);
 972   void OnMoveOrResizeStarted();
 973   void OnNavigate(const ViewMsg_Navigate_Params& params);
 974   void OnPaste();
 975   void OnPasteAndMatchStyle();
 976   void OnPostMessageEvent(const ViewMsg_PostMessage_Params& params);
 977   void OnRedo();
 978   void OnReleaseDisambiguationPopupDIB(TransportDIB::Handle dib_handle);
 979   void OnReloadFrame();
 980   void OnReplace(const string16& text);
 981   void OnReplaceMisspelling(const string16& text);
 982   void OnResetPageEncodingToDefault();
 983   void OnScriptEvalRequest(const string16& frame_xpath,
 984                            const string16& jscript,
 985                            int id,
 986                            bool notify_result);
 987   void OnSelectAll();
 988   void OnSelectRange(const gfx::Point& start, const gfx::Point& end);
 989   void OnMoveCaret(const gfx::Point& point);
 990   void OnSetAccessibilityMode(AccessibilityMode new_mode);
 991   void OnSetActive(bool active);
 992   void OnSetAltErrorPageURL(const GURL& gurl);
 993   void OnSetBackground(const SkBitmap& background);
 994   void OnSetCompositionFromExistingText(
 995       int start, int end,
 996       const std::vector<WebKit::WebCompositionUnderline>& underlines);
 997   void OnSetEditableSelectionOffsets(int start, int end);
 998   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 999   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
1000   void OnSetHistoryLengthAndPrune(int history_length, int32 minimum_page_id);
1001   void OnSetInitialFocus(bool reverse);
1002   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
1003   void OnSetPageEncoding(const std::string& encoding_name);
1004   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
1005   void OnSetZoomLevel(double zoom_level);
1006   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
1007   void OnExitFullscreen();
1008   void OnShouldClose();
1009   void OnStop();
1010   void OnStopFinding(StopFindAction action);
1011   void OnSwapOut(const ViewMsg_SwapOut_Params& params);
1012   void OnThemeChanged();
1013   void OnUndo();
1014   void OnUpdateTargetURLAck();
1015   void OnUpdateTimezone();
1016   void OnUpdateWebPreferences(const webkit_glue::WebPreferences& prefs);
1017   void OnUnselect();
1018
1019   void OnZoom(PageZoom zoom);
1020   void OnZoomFactor(PageZoom zoom, int zoom_center_x, int zoom_center_y);
1021
1022   void OnEnableViewSourceMode();
1023
1024   void OnJavaBridgeInit();
1025
1026   void OnDisownOpener();
1027   void OnUpdatedFrameTree(int process_id,
1028                           int route_id,
1029                           const std::string& frame_tree);
1030
1031 #if defined(OS_ANDROID)
1032   void OnActivateNearestFindResult(int request_id, float x, float y);
1033   void OnFindMatchRects(int current_version);
1034   void OnSelectPopupMenuItems(bool canceled,
1035                               const std::vector<int>& selected_indices);
1036   void OnUndoScrollFocusedEditableNodeIntoRect();
1037   void OnUpdateTopControlsState(bool enable_hiding,
1038                                 bool enable_showing,
1039                                 bool animate);
1040 #elif defined(OS_MACOSX)
1041   void OnCopyToFindPboard();
1042   void OnPluginImeCompositionCompleted(const string16& text, int plugin_id);
1043   void OnSelectPopupMenuItem(int selected_index);
1044   void OnSetInLiveResize(bool in_live_resize);
1045   void OnSetWindowVisibility(bool visible);
1046   void OnWindowFrameChanged(const gfx::Rect& window_frame,
1047                             const gfx::Rect& view_frame);
1048 #endif
1049
1050   void OnWindowSnapshotCompleted(const int snapshot_id,
1051       const gfx::Size& size, const std::vector<unsigned char>& png);
1052
1053
1054   // Adding a new message handler? Please add it in alphabetical order above
1055   // and put it in the same position in the .cc file.
1056
1057   // Misc private functions ----------------------------------------------------
1058   void ZoomFactorHelper(PageZoom zoom, int zoom_center_x, int zoom_center_y,
1059                         float scaling_increment);
1060
1061   void AltErrorPageFinished(WebKit::WebFrame* frame,
1062                             const WebKit::WebURLError& original_error,
1063                             const std::string& html);
1064
1065   // Check whether the preferred size has changed.
1066   void CheckPreferredSize();
1067
1068   // This method walks the entire frame tree for this RenderView and sends an
1069   // update to the browser process as described in the
1070   // ViewHostMsg_FrameTreeUpdated comments. If |exclude_frame_subtree|
1071   // frame is non-NULL, the subtree starting at that frame not included in the
1072   // serialized form.
1073   // This is used when a frame is going to be removed from the tree.
1074   void SendUpdatedFrameTree(WebKit::WebFrame* exclude_frame_subtree);
1075
1076   // Recursively creates a DOM frame tree starting with |frame|, based on
1077   // |frame_tree|. For each node, the frame is navigated to the swapped out URL,
1078   // the name (if present) is set on it, and all the subframes are created
1079   // and added to the DOM.
1080   void CreateFrameTree(WebKit::WebFrame* frame,
1081                        base::DictionaryValue* frame_tree);
1082
1083   // If this is a swapped out RenderView, which maintains a copy of the frame
1084   // tree of an active RenderView, we keep a map from frame ids in this view to
1085   // the frame ids of the active view for each corresponding frame.
1086   // This method returns the frame in this RenderView that corresponds to the
1087   // frame in the active RenderView specified by |remote_frame_id|.
1088   WebKit::WebFrame* GetFrameByRemoteID(int remote_frame_id);
1089
1090   void EnsureMediaStreamImpl();
1091
1092   // This callback is triggered when DownloadFavicon completes, either
1093   // succesfully or with a failure. See DownloadFavicon for more
1094   // details.
1095   void DidDownloadFavicon(webkit_glue::ImageResourceFetcher* fetcher,
1096                           const SkBitmap& image);
1097
1098   // Requests to download a favicon image. When done, the RenderView is notified
1099   // by way of DidDownloadFavicon. Returns true if the request was successfully
1100   // started, false otherwise. id is used to uniquely identify the request and
1101   // passed back to the DidDownloadFavicon method. If the image has multiple
1102   // frames, the frame whose size is image_size is returned. If the image
1103   // doesn't have a frame at the specified size, the first is returned.
1104   bool DownloadFavicon(int id, const GURL& image_url, int image_size);
1105
1106   GURL GetAlternateErrorPageURL(const GURL& failed_url,
1107                                 ErrorPageType error_type);
1108
1109   // Locates a sub frame with given xpath
1110   WebKit::WebFrame* GetChildFrame(const string16& frame_xpath) const;
1111
1112   // Returns the URL being loaded by the given frame's request.
1113   GURL GetLoadingUrl(WebKit::WebFrame* frame) const;
1114
1115   // Should only be called if this object wraps a PluginDocument.
1116   WebKit::WebPlugin* GetWebPluginFromPluginDocument();
1117
1118   // Returns true if the |params| navigation is to an entry that has been
1119   // cropped due to a recent navigation the browser did not know about.
1120   bool IsBackForwardToStaleEntry(const ViewMsg_Navigate_Params& params,
1121                                  bool is_reload);
1122
1123   bool MaybeLoadAlternateErrorPage(WebKit::WebFrame* frame,
1124                                    const WebKit::WebURLError& error,
1125                                    bool replace);
1126
1127   // Make this RenderView show an empty, unscriptable page.
1128   void NavigateToSwappedOutURL(WebKit::WebFrame* frame);
1129
1130   // If we initiated a navigation, this function will populate |document_state|
1131   // with the navigation information saved in OnNavigate().
1132   void PopulateDocumentStateFromPending(DocumentState* document_state);
1133
1134   // Returns a new NavigationState populated with the navigation information
1135   // saved in OnNavigate().
1136   NavigationState* CreateNavigationStateFromPending();
1137
1138   // Processes the command-line flags --enable-viewport,
1139   // --enable-fixed-layout[=w,h] and --enable-pinch.
1140   void ProcessViewLayoutFlags(const CommandLine& command_line);
1141
1142 #if defined(OS_ANDROID)
1143   // Launch an Android content intent with the given URL.
1144   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
1145 #endif
1146
1147   // Sends a reply to the current find operation handling if it was a
1148   // synchronous find request.
1149   void SendFindReply(int request_id,
1150                      int match_count,
1151                      int ordinal,
1152                      const WebKit::WebRect& selection_rect,
1153                      bool final_status_update);
1154
1155   // Returns whether |params.selection_text| should be synchronized to the
1156   // browser before bringing up the context menu. Static for testing.
1157   static bool ShouldUpdateSelectionTextFromContextMenuParams(
1158       const string16& selection_text,
1159       size_t selection_text_offset,
1160       const ui::Range& selection_range,
1161       const ContextMenuParams& params);
1162
1163   // Starts nav_state_sync_timer_ if it isn't already running.
1164   void StartNavStateSyncTimerIfNecessary();
1165
1166   // Dispatches the current state of selection on the webpage to the browser if
1167   // it has changed.
1168   // TODO(varunjain): delete this method once we figure out how to keep
1169   // selection handles in sync with the webpage.
1170   void SyncSelectionIfRequired();
1171
1172 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1173   void UpdateFontRenderingFromRendererPrefs();
1174 #else
1175   void UpdateFontRenderingFromRendererPrefs() {}
1176 #endif
1177
1178   // Update the target url and tell the browser that the target URL has changed.
1179   // If |url| is empty, show |fallback_url|.
1180   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
1181
1182   // Tells the browser what the new list of favicons for the webpage is.
1183   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
1184
1185   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
1186   // the browser.
1187   void DidStopLoadingIcons();
1188
1189   // Coordinate conversion -----------------------------------------------------
1190
1191   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
1192
1193   // ---------------------------------------------------------------------------
1194   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
1195   // it in the same order in the .cc file as it was in the header.
1196   // ---------------------------------------------------------------------------
1197
1198   // Settings ------------------------------------------------------------------
1199
1200   webkit_glue::WebPreferences webkit_preferences_;
1201   RendererPreferences renderer_preferences_;
1202
1203   HostZoomLevels host_zoom_levels_;
1204
1205   // Whether content state (such as form state, scroll position and page
1206   // contents) should be sent to the browser immediately. This is normally
1207   // false, but set to true by some tests.
1208   bool send_content_state_immediately_;
1209
1210   // Bitwise-ORed set of extra bindings that have been enabled.  See
1211   // BindingsPolicy for details.
1212   int enabled_bindings_;
1213
1214   // The alternate error page URL, if one exists.
1215   GURL alternate_error_page_url_;
1216
1217   // If true, we send IPC messages when |preferred_size_| changes.
1218   bool send_preferred_size_changes_;
1219
1220   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
1221   // scroll bars on windows smaller than this size.  Used for windows that the
1222   // browser resizes to the size of the content, such as browser action popups.
1223   // If a render view is set to the minimum size of its content, webkit may add
1224   // scroll bars.  This makes sense for fixed sized windows, but it does not
1225   // make sense when the size of the view was chosen to fit the content.
1226   // This setting ensures that no scroll bars are drawn.  The size limit exists
1227   // because if the view grows beyond a size known to the browser, scroll bars
1228   // should be drawn.
1229   gfx::Size disable_scrollbars_size_limit_;
1230
1231   // Loading state -------------------------------------------------------------
1232
1233   // True if the top level frame is currently being loaded.
1234   bool is_loading_;
1235
1236   // The gesture that initiated the current navigation.
1237   NavigationGesture navigation_gesture_;
1238
1239   // Used for popups.
1240   bool opened_by_user_gesture_;
1241
1242   // Whether this RenderView was created by a frame that was suppressing its
1243   // opener. If so, we may want to load pages in a separate process.  See
1244   // decidePolicyForNavigation for details.
1245   bool opener_suppressed_;
1246
1247   // If we are handling a top-level client-side redirect, this tracks the URL
1248   // of the page that initiated it. Specifically, when a load is committed this
1249   // is used to determine if that load originated from a client-side redirect.
1250   // It is empty if there is no top-level client-side redirect.
1251   Referrer completed_client_redirect_src_;
1252
1253   // Holds state pertaining to a navigation that we initiated.  This is held by
1254   // the WebDataSource::ExtraData attribute.  We use pending_navigation_state_
1255   // as a temporary holder for the state until the WebDataSource corresponding
1256   // to the new navigation is created.  See DidCreateDataSource.
1257   scoped_ptr<ViewMsg_Navigate_Params> pending_navigation_params_;
1258
1259   // Timer used to delay the updating of nav state (see SyncNavigationState).
1260   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
1261
1262   // Page IDs ------------------------------------------------------------------
1263   // See documentation in RenderView.
1264   int32 page_id_;
1265
1266   // Indicates the ID of the last page that we sent a FrameNavigate to the
1267   // browser for. This is used to determine if the most recent transition
1268   // generated a history entry (less than page_id_), or not (equal to or
1269   // greater than). Note that this will be greater than page_id_ if the user
1270   // goes back.
1271   int32 last_page_id_sent_to_browser_;
1272
1273   // The next available page ID to use for this RenderView.  These IDs are
1274   // specific to a given RenderView and the frames within it.
1275   int32 next_page_id_;
1276
1277   // The offset of the current item in the history list.
1278   int history_list_offset_;
1279
1280   // The RenderView's current impression of the history length.  This includes
1281   // any items that have committed in this process, but because of cross-process
1282   // navigations, the history may have some entries that were committed in other
1283   // processes.  We won't know about them until the next navigation in this
1284   // process.
1285   int history_list_length_;
1286
1287   // The list of page IDs for each history item this RenderView knows about.
1288   // Some entries may be -1 if they were rendered by other processes or were
1289   // restored from a previous session.  This lets us detect attempts to
1290   // navigate to stale entries that have been cropped from our history.
1291   std::vector<int32> history_page_ids_;
1292
1293   // Page info -----------------------------------------------------------------
1294
1295   // The last gotten main frame's encoding.
1296   std::string last_encoding_name_;
1297
1298   // UI state ------------------------------------------------------------------
1299
1300   // The state of our target_url transmissions. When we receive a request to
1301   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
1302   // comes back - if a new request comes in before the ACK, we store the new
1303   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
1304   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
1305   // revert to TARGET_INFLIGHT.
1306   //
1307   // We don't need a queue of URLs to send, as only the latest is useful.
1308   enum {
1309     TARGET_NONE,
1310     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
1311     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
1312   } target_url_status_;
1313
1314   // The URL we show the user in the status bar. We use this to determine if we
1315   // want to send a new one (we do not need to send duplicates). It will be
1316   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
1317   // updated last.
1318   GURL target_url_;
1319
1320   // The URL the user's mouse is hovering over.
1321   GURL mouse_over_url_;
1322
1323   // The URL that has keyboard focus.
1324   GURL focus_url_;
1325
1326   // The next target URL we want to send to the browser.
1327   GURL pending_target_url_;
1328
1329   // The text selection the last time DidChangeSelection got called. May contain
1330   // additional characters before and after the selected text, for IMEs. The
1331   // portion of this string that is the actual selected text starts at index
1332   // |selection_range_.GetMin() - selection_text_offset_| and has length
1333   // |selection_range_.length()|.
1334   string16 selection_text_;
1335   // The offset corresponding to the start of |selection_text_| in the document.
1336   size_t selection_text_offset_;
1337   // Range over the document corresponding to the actual selected text (which
1338   // could correspond to a substring of |selection_text_|; see above).
1339   ui::Range selection_range_;
1340
1341   // External context menu requests we're waiting for. "Internal"
1342   // (WebKit-originated) context menu events will have an ID of 0 and will not
1343   // be in this map.
1344   //
1345   // We don't want to add internal ones since some of the "special" page
1346   // handlers in the browser process just ignore the context menu requests so
1347   // avoid showing context menus, and so this will cause right clicks to leak
1348   // entries in this map. Most users of the custom context menu (e.g. Pepper
1349   // plugins) are normally only on "regular" pages and the regular pages will
1350   // always respond properly to the request, so we don't have to worry so
1351   // much about leaks.
1352   IDMap<ContextMenuClient, IDMapExternalPointer> pending_context_menus_;
1353
1354   // View ----------------------------------------------------------------------
1355
1356   // Cache the preferred size of the page in order to prevent sending the IPC
1357   // when layout() recomputes but doesn't actually change sizes.
1358   gfx::Size preferred_size_;
1359
1360   // Used to delay determining the preferred size (to avoid intermediate
1361   // states for the sizes).
1362   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
1363
1364   // These store the "is main frame is scrolled all the way to the left
1365   // or right" state that was last sent to the browser.
1366   bool cached_is_main_frame_pinned_to_left_;
1367   bool cached_is_main_frame_pinned_to_right_;
1368
1369   // These store the "has scrollbars" state last sent to the browser.
1370   bool cached_has_main_frame_horizontal_scrollbar_;
1371   bool cached_has_main_frame_vertical_scrollbar_;
1372
1373   // Helper objects ------------------------------------------------------------
1374
1375   RendererWebCookieJarImpl cookie_jar_;
1376
1377   // The next group of objects all implement RenderViewObserver, so are deleted
1378   // along with the RenderView automatically.  This is why we just store
1379   // weak references.
1380
1381   // Holds a reference to the service which provides desktop notifications.
1382   NotificationProvider* notification_provider_;
1383
1384   // The geolocation dispatcher attached to this view, lazily initialized.
1385   GeolocationDispatcher* geolocation_dispatcher_;
1386
1387   // The speech dispatcher attached to this view, lazily initialized.
1388   InputTagSpeechDispatcher* input_tag_speech_dispatcher_;
1389
1390   // The speech recognition dispatcher attached to this view, lazily
1391   // initialized.
1392   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
1393
1394   // Device orientation dispatcher attached to this view; lazily initialized.
1395   DeviceOrientationDispatcher* device_orientation_dispatcher_;
1396
1397   // MediaStream dispatcher attached to this view; lazily initialized.
1398   MediaStreamDispatcher* media_stream_dispatcher_;
1399
1400   // BrowserPluginManager attached to this view; lazily initialized.
1401   scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
1402
1403   // MediaStreamImpl attached to this view; lazily initialized.
1404   MediaStreamImpl* media_stream_impl_;
1405
1406   DevToolsAgent* devtools_agent_;
1407
1408   // The current accessibility mode.
1409   AccessibilityMode accessibility_mode_;
1410
1411   // Only valid if |accessibility_mode_| is anything other than
1412   // AccessibilityModeOff.
1413   RendererAccessibility* renderer_accessibility_;
1414
1415   // Java Bridge dispatcher attached to this view; lazily initialized.
1416   JavaBridgeDispatcher* java_bridge_dispatcher_;
1417
1418   // Mouse Lock dispatcher attached to this view.
1419   MouseLockDispatcher* mouse_lock_dispatcher_;
1420
1421 #if defined(OS_ANDROID)
1422   // Android Specific ---------------------------------------------------------
1423
1424   // The background color of the document body element. This is used as the
1425   // default background color for filling the screen areas for which we don't
1426   // have the actual content.
1427   SkColor body_background_color_;
1428
1429   // Expected id of the next content intent launched. Used to prevent scheduled
1430   // intents to be launched if aborted.
1431   size_t expected_content_intent_id_;
1432
1433   // List of click-based content detectors.
1434   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
1435   ContentDetectorList content_detectors_;
1436
1437   // Proxy class for WebMediaPlayer to communicate with the real media player
1438   // objects in browser process.
1439   WebMediaPlayerProxyImplAndroid* media_player_proxy_;
1440
1441   // The media player manager for managing all the media players on this view.
1442   scoped_ptr<webkit_media::WebMediaPlayerManagerAndroid> media_player_manager_;
1443
1444   // Resource manager for all the android media player objects if they are
1445   // created in the renderer process.
1446   scoped_ptr<webkit_media::MediaPlayerBridgeManagerImpl> media_bridge_manager_;
1447
1448   // A date/time picker object for date and time related input elements.
1449   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
1450 #endif
1451
1452   // Misc ----------------------------------------------------------------------
1453
1454   // The current and pending file chooser completion objects. If the queue is
1455   // nonempty, the first item represents the currently running file chooser
1456   // callback, and the remaining elements are the other file chooser completion
1457   // still waiting to be run (in order).
1458   struct PendingFileChooser;
1459   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
1460
1461   // The current directory enumeration callback
1462   std::map<int, WebKit::WebFileChooserCompletion*> enumeration_completions_;
1463   int enumeration_completion_id_;
1464
1465   // Reports load progress to the browser.
1466   scoped_ptr<LoadProgressTracker> load_progress_tracker_;
1467
1468   // The SessionStorage namespace that we're assigned to has an ID, and that ID
1469   // is passed to us upon creation.  WebKit asks for this ID upon first use and
1470   // uses it whenever asking the browser process to allocate new storage areas.
1471   int64 session_storage_namespace_id_;
1472
1473   // The total number of unrequested popups that exist and can be followed back
1474   // to a common opener. This count is shared among all RenderViews created with
1475   // createView(). All popups are treated as unrequested until specifically
1476   // instructed otherwise by the Browser process.
1477   scoped_refptr<SharedRenderViewCounter> shared_popup_counter_;
1478
1479   // Whether this is a top level window (instead of a popup). Top level windows
1480   // shouldn't count against their own |shared_popup_counter_|.
1481   bool decrement_shared_popup_at_destruction_;
1482
1483   // Stores edit commands associated to the next key event.
1484   // Shall be cleared as soon as the next key event is processed.
1485   EditCommands edit_commands_;
1486
1487   // The external popup for the currently showing select popup.
1488   scoped_ptr<ExternalPopupMenu> external_popup_menu_;
1489
1490   // The node that the context menu was pressed over.
1491   WebKit::WebNode context_menu_node_;
1492
1493   // All the registered observers.  We expect this list to be small, so vector
1494   // is fine.
1495   ObserverList<RenderViewObserver> observers_;
1496
1497   // Used to inform didChangeSelection() when it is called in the context
1498   // of handling a ViewMsg_SelectRange IPC.
1499   bool handling_select_range_;
1500
1501   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
1502   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
1503
1504   // State associated with the GetWindowSnapshot function.
1505   int next_snapshot_id_;
1506   typedef std::map<int, WindowSnapshotCallback>
1507       PendingSnapshotMap;
1508   PendingSnapshotMap pending_snapshots_;
1509
1510   bool allow_partial_swap_;
1511
1512   // Plugins -------------------------------------------------------------------
1513
1514   // All the currently active plugin delegates for this RenderView; kept so
1515   // that we can enumerate them to send updates about things like window
1516   // location or tab focus and visibily. These are non-owning references.
1517   std::set<WebPluginDelegateProxy*> plugin_delegates_;
1518
1519 #if defined(OS_WIN)
1520   // The ID of the focused NPAPI plug-in.
1521   int focused_plugin_id_;
1522 #endif
1523
1524   // Allows JS to access DOM automation. The JS object is only exposed when the
1525   // DOM automation bindings are enabled.
1526   scoped_ptr<DomAutomationController> dom_automation_controller_;
1527
1528   // Boolean indicating whether we are in the process of creating the frame
1529   // tree for this renderer in response to ViewMsg_UpdateFrameTree.  If true,
1530   // we won't be sending ViewHostMsg_FrameTreeUpdated messages back to the
1531   // browser, as those will be redundant.
1532   bool updating_frame_tree_;
1533
1534   // Boolean indicating that the frame tree has changed, but a message has not
1535   // been sent to the browser because a page has been loading. This helps
1536   // avoid extra messages being sent to the browser when navigating away from a
1537   // page with subframes, which will be destroyed. Instead, a single message
1538   // is sent when the load is stopped with the final state of the frame tree.
1539   //
1540   // TODO(nasko): Relying on the is_loading_ means that frame tree updates will
1541   // not be sent until *all* subframes have completed loading. This can cause
1542   // JavaScript calls to fail, if they occur prior to the first update message
1543   // being sent. This will be fixed by bug http://crbug.com/145014.
1544   bool pending_frame_tree_update_;
1545
1546   // If this render view is a swapped out "mirror" of an active render view in a
1547   // different process, we record the process id and route id for the active RV.
1548   // For further details, see the comments on ViewHostMsg_FrameTreeUpdated.
1549   int target_process_id_;
1550   int target_routing_id_;
1551
1552   // A map of the current process's frame ids to ids in the remote active render
1553   // view, if this is a swapped out render view.
1554   std::map<int, int> active_frame_id_map_;
1555
1556   // This field stores drag/drop related info for the event that is currently
1557   // being handled. If the current event results in starting a drag/drop
1558   // session, this info is sent to the browser along with other drag/drop info.
1559   DragEventSourceInfo possible_drag_event_info_;
1560
1561   // NOTE: pepper_helper_ should be last member because its constructor calls
1562   // AddObservers method of RenderViewImpl from c-tor.
1563   scoped_ptr<RenderViewPepperHelper> pepper_helper_;
1564
1565   // ---------------------------------------------------------------------------
1566   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1567   // sections rather than throwing it randomly at the end. If you're adding a
1568   // bunch of stuff, you should probably create a helper class and put your
1569   // data and methods on that to avoid bloating RenderView more.  You can
1570   // use the Observer interface to filter IPC messages and receive frame change
1571   // notifications.
1572   // ---------------------------------------------------------------------------
1573
1574   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1575 };
1576
1577 }  // namespace content
1578
1579 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_