Make TabContents own its infobar delegates....

chrome/browser/gtk/extension_view_gtk.h

 // Copyright (c) 2009 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 CHROME_BROWSER_GTK_EXTENSION_VIEW_GTK_H_
 #define CHROME_BROWSER_GTK_EXTENSION_VIEW_GTK_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "gfx/native_widget_types.h"
@@ skipping 31 matching lines @@
   // extension contents.
   void UpdatePreferredSize(const gfx::Size& new_size);
 
   // Method for the ExtensionHost to notify us when the RenderViewHost has a
   // connection.
   void RenderViewCreated();
 
   RenderViewHost* render_view_host() const;
 
  private:
+  virtual ~ExtensionViewGtk();
+
   void CreateWidgetHostView();
 
   Browser* browser_;
 
   ExtensionHost* extension_host_;
 
   RenderWidgetHostViewGtk* render_widget_host_view_;
 
   // The background the view should have once it is initialized. This is set
   // when the view has a custom background, but hasn't been initialized yet.
   SkBitmap pending_background_;
 
   // This view's container.
   Container* container_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_EXTENSION_VIEW_GTK_H_