Devirtualize CHROMEGTK_CALLBACK.

content/browser/tab_contents/web_drag_dest_gtk.h

 // Copyright (c) 2011 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_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "webkit/glue/webdropdata.h"
 
 class TabContents;
 
 namespace content {
 
 class WebDragDestDelegate;
 
 // A helper class that handles DnD for drops in the renderer. In GTK parlance,
 // this handles destination-side DnD, but not source-side DnD.
 class CONTENT_EXPORT WebDragDestGtk {
  public:
   WebDragDestGtk(TabContents* tab_contents, GtkWidget* widget);
-  virtual ~WebDragDestGtk();
+  ~WebDragDestGtk();
 
   // This is called when the renderer responds to a drag motion event. We must
   // update the system drag cursor.
   void UpdateDragStatus(WebKit::WebDragOperation operation);
 
   // Informs the renderer when a system drag has left the render view.
   // See OnDragLeave().
   void DragLeave();
 
   WebDragDestDelegate* delegate() const { return delegate_; }
@@ skipping 56 matching lines @@
   WebDragDestDelegate* delegate_;
 
   base::WeakPtrFactory<WebDragDestGtk> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDragDestGtk);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_