Implement web content hit testing in win aura.

ui/views/controls/webview/webview.h

Index: ui/views/controls/webview/webview.h
diff --git a/ui/views/controls/webview/webview.h b/ui/views/controls/webview/webview.h
index cec510259e120173ee70985d48608cec137786fa..05c447db8a944b98697f1dfac3bff85c6b5af40c 100644
--- a/ui/views/controls/webview/webview.h
+++ b/ui/views/controls/webview/webview.h
@@ -24,8 +24,7 @@ class NativeViewHost;
 
 class WEBVIEW_EXPORT WebView : public View,
                                public content::NotificationObserver,
-                               public content::WebContentsDelegate,
-                               public AccessibleWebView {
+                               public content::WebContentsDelegate {
  public:
   static const char kViewClassName[];
 
@@ -83,11 +82,6 @@ class WEBVIEW_EXPORT WebView : public View,
   // Overridden from View:
   virtual const char* GetClassName() const OVERRIDE;
 
-  // Overridden from AccessibleWebView:
-  virtual gfx::NativeViewAccessible AccessibleObjectFromChildId(
-      long child_id) OVERRIDE;
-  virtual View* AsView() OVERRIDE;
-
  private:
   // Overridden from View:
   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;