Fix race in BrowserAccessibilityManagerWin creation.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index dd371919e5d473c7b8f7960d12221e94d4997be4..9bff4ffff9703a4d02e212719a25c04ed3469b2e 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -314,9 +314,6 @@ WebContentsImpl::WebContentsImpl(
       render_view_host_delegate_view_(NULL),
       opener_(opener),
       created_with_opener_(!!opener),
-#if defined(OS_WIN)
-      accessible_parent_(NULL),
-#endif
       frame_tree_(new NavigatorImpl(&controller_, this),
                   this, this, this, this),
       is_loading_(false),
@@ -720,15 +717,6 @@ const std::string& WebContentsImpl::GetUserAgentOverride() const {
   return renderer_preferences_.user_agent_override;
 }
 
-#if defined(OS_WIN)
-void WebContentsImpl::SetParentNativeViewAccessible(
-gfx::NativeViewAccessible accessible_parent) {
-  accessible_parent_ = accessible_parent;
-  if (GetRenderViewHost())
-    GetRenderViewHostImpl()->SetParentNativeViewAccessible(accessible_parent);
-}
-#endif
-
 const base::string16& WebContentsImpl::GetTitle() const {
   // Transient entries take precedence. They are used for interstitial pages
   // that are shown on top of existing pages.
@@ -1266,12 +1254,6 @@ bool WebContentsImpl::HandleGestureEvent(
   return false;
 }
 
-#if defined(OS_WIN)
-gfx::NativeViewAccessible WebContentsImpl::GetParentNativeViewAccessible() {
-  return accessible_parent_;
-}
-#endif
-
 void WebContentsImpl::HandleMouseDown() {
   if (delegate_)
     delegate_->HandleMouseDown();