Implement web content hit testing in win aura.

ui/views/controls/webview/webview.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 UI_VIEWS_CONTROLS_WEBVIEW_WEBVIEW_H_
 #define UI_VIEWS_CONTROLS_WEBVIEW_WEBVIEW_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "ui/views/accessibility/native_view_accessibility.h"
 #include "ui/views/controls/webview/webview_export.h"
 #include "ui/views/view.h"
 
 namespace content {
 class SiteInstance;
 }
 
 namespace views {
 
 class NativeViewHost;
 
 class WEBVIEW_EXPORT WebView : public View,
                                public content::NotificationObserver,
-                               public content::WebContentsDelegate,
-                               public AccessibleWebView {
+                               public content::WebContentsDelegate {
  public:
   static const char kViewClassName[];
 
   explicit WebView(content::BrowserContext* browser_context);
   virtual ~WebView();
 
   // This creates a WebContents if none is yet associated with this WebView. The
   // WebView owns this implicitly created WebContents.
   content::WebContents* GetWebContents();
 
@@ skipping 37 matching lines @@
     allow_accelerators_ = allow_accelerators;
   }
 
   // Sets the preferred size. If empty, View's implementation of
   // GetPreferredSize() is used.
   void SetPreferredSize(const gfx::Size& preferred_size);
 
   // 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;
   virtual void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) OVERRIDE;
   virtual bool SkipDefaultKeyEventProcessing(
       const ui::KeyEvent& event) OVERRIDE;
   virtual bool IsFocusable() const OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void AboutToRequestFocusFromTabTraversal(bool reverse) OVERRIDE;
@@ skipping 29 matching lines @@
   content::NotificationRegistrar registrar_;
   bool allow_accelerators_;
   gfx::Size preferred_size_;
 
   DISALLOW_COPY_AND_ASSIGN(WebView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_WEBVIEW_WEBVIEW_H_