Fix race in BrowserAccessibilityManagerWin creation.

content/browser/web_contents/web_contents_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 172 matching lines @@
   virtual RenderViewHost* GetRenderViewHost() const OVERRIDE;
   virtual int GetRoutingID() const OVERRIDE;
   virtual RenderWidgetHostView* GetRenderWidgetHostView() const OVERRIDE;
   virtual RenderWidgetHostView* GetFullscreenRenderWidgetHostView() const
       OVERRIDE;
   virtual WebUI* CreateWebUI(const GURL& url) OVERRIDE;
   virtual WebUI* GetWebUI() const OVERRIDE;
   virtual WebUI* GetCommittedWebUI() const OVERRIDE;
   virtual void SetUserAgentOverride(const std::string& override) OVERRIDE;
   virtual const std::string& GetUserAgentOverride() const OVERRIDE;
-#if defined(OS_WIN)
-  virtual void SetParentNativeViewAccessible(
-      gfx::NativeViewAccessible accessible_parent) OVERRIDE;
-#endif
   virtual const base::string16& GetTitle() const OVERRIDE;
   virtual int32 GetMaxPageID() OVERRIDE;
   virtual int32 GetMaxPageIDForSiteInstance(
       SiteInstance* site_instance) OVERRIDE;
   virtual SiteInstance* GetSiteInstance() const OVERRIDE;
   virtual SiteInstance* GetPendingSiteInstance() const OVERRIDE;
   virtual bool IsLoading() const OVERRIDE;
   virtual bool IsLoadingToDifferentDocument() const OVERRIDE;
   virtual bool IsWaitingForResponse() const OVERRIDE;
   virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE;
@@ skipping 293 matching lines @@
   virtual void HandleKeyboardEvent(
       const NativeWebKeyboardEvent& event) OVERRIDE;
   virtual bool HandleWheelEvent(
       const blink::WebMouseWheelEvent& event) OVERRIDE;
   virtual bool PreHandleGestureEvent(
       const blink::WebGestureEvent& event) OVERRIDE;
   virtual bool HandleGestureEvent(
       const blink::WebGestureEvent& event) OVERRIDE;
   virtual void DidSendScreenRects(RenderWidgetHostImpl* rwh) OVERRIDE;
   virtual void OnTouchEmulationEnabled(bool enabled) OVERRIDE;
-#if defined(OS_WIN)
-  virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE;
-#endif
 
   // RenderFrameHostManager::Delegate ------------------------------------------
 
   virtual bool CreateRenderViewForRenderManager(
       RenderViewHost* render_view_host,
       int opener_route_id,
       int proxy_routing_id,
       bool for_main_frame) OVERRIDE;
   virtual void BeforeUnloadFiredFromRenderManager(
       bool proceed, const base::TimeTicks& proceed_time,
@@ skipping 387 matching lines @@
   ObserverList<WebContentsObserver> observers_;
 
   // The tab that opened this tab, if any.  Will be set to null if the opener
   // is closed.
   WebContentsImpl* opener_;
 
   // True if this tab was opened by another tab. This is not unset if the opener
   // is closed.
   bool created_with_opener_;
 
-#if defined(OS_WIN)
-  gfx::NativeViewAccessible accessible_parent_;
-#endif
-
   // Helper classes ------------------------------------------------------------
 
   // Maps the RenderFrameHost to its media_player_cookie and PowerSaveBlocker
   // pairs. Key is the RenderFrameHost, value is the map which maps
   // player_cookie on to PowerSaveBlocker.
   typedef std::map<RenderFrameHost*, std::map<int64, PowerSaveBlocker*> >
       PowerSaveBlockerMap;
   PowerSaveBlockerMap power_save_blockers_;
 
   // Manages the frame tree of the page and process swaps in each node.
@@ skipping 196 matching lines @@
   bool last_dialog_suppressed_;
 
   scoped_ptr<GeolocationDispatcherHost> geolocation_dispatcher_host_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_