Fix race in BrowserAccessibilityManagerWin creation.

content/browser/renderer_host/render_widget_host_view_aura.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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 210 matching lines @@
       const blink::WebInputEvent& input_event) OVERRIDE;
   virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
   virtual void CreateBrowserAccessibilityManagerIfNeeded() OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
   virtual void OnSwapCompositorFrame(
       uint32 output_surface_id,
       scoped_ptr<cc::CompositorFrame> frame) OVERRIDE;
 
 #if defined(OS_WIN)
-  virtual void SetParentNativeViewAccessible(
-      gfx::NativeViewAccessible accessible_parent) OVERRIDE;
+  virtual HWND GetAccessibleParentHWND() const OVERRIDE;
+  virtual IAccessible* GetParentIAccessible() const OVERRIDE;
   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const OVERRIDE;
 #endif
 
   // Overridden from ui::TextInputClient:
   virtual void SetCompositionText(
       const ui::CompositionText& composition) OVERRIDE;
   virtual void ConfirmCompositionText() OVERRIDE;
   virtual void ClearCompositionText() OVERRIDE;
   virtual void InsertText(const base::string16& text) OVERRIDE;
   virtual void InsertChar(base::char16 ch, int flags) OVERRIDE;
@@ skipping 341 matching lines @@
   // etc.
   scoped_ptr<content::LegacyRenderWidgetHostHWND>
       legacy_render_widget_host_HWND_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_