Fix race in BrowserAccessibilityManagerWin creation.

content/browser/renderer_host/render_widget_host_impl.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 #include <set>
 #include <utility>
 
@@ skipping 1997 matching lines @@
 void RenderWidgetHostImpl::AccessibilityHitTest(const gfx::Point& point) {
   Send(new AccessibilityMsg_HitTest(GetRoutingID(), point));
 }
 
 void RenderWidgetHostImpl::AccessibilityFatalError() {
   Send(new AccessibilityMsg_FatalError(GetRoutingID()));
   view_->SetBrowserAccessibilityManager(NULL);
 }
 
 #if defined(OS_WIN)
-void RenderWidgetHostImpl::SetParentNativeViewAccessible(
-    gfx::NativeViewAccessible accessible_parent) {
-  if (view_)
-    view_->SetParentNativeViewAccessible(accessible_parent);
+HWND RenderWidgetHostImpl::GetAccessibleParentHWND() const {
+  return view_->GetAccessibleParentHWND();
 }
 
-gfx::NativeViewAccessible
-RenderWidgetHostImpl::GetParentNativeViewAccessible() const {
-  return delegate_->GetParentNativeViewAccessible();
+IAccessible* RenderWidgetHostImpl::GetParentIAccessible() const {
+  return view_->GetParentIAccessible();
 }
-#endif
+#endif  // defined(OS_WIN)
 
 void RenderWidgetHostImpl::ExecuteEditCommand(const std::string& command,
                                               const std::string& value) {
   Send(new InputMsg_ExecuteEditCommand(GetRoutingID(), command, value));
 }
 
 void RenderWidgetHostImpl::ScrollFocusedEditableNodeIntoRect(
     const gfx::Rect& rect) {
   Send(new InputMsg_ScrollFocusedEditableNodeIntoRect(GetRoutingID(), rect));
 }
@@ skipping 268 matching lines @@
   }
 }
 
 SkBitmap::Config RenderWidgetHostImpl::PreferredReadbackFormat() {
   if (view_)
     return view_->PreferredReadbackFormat();
   return SkBitmap::kARGB_8888_Config;
 }
 
 }  // namespace content