Abstract base 'ExtensionView' to Fix DEPS violation in extension_view_host.h

chrome/browser/ui/views/extensions/extension_dialog.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 CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/window/dialog_delegate.h"
 
 class ExtensionDialogObserver;
+class ExtensionViewViews;
 class GURL;
 class Profile;
 
 namespace content {
 class WebContents;
 }
 
 namespace extensions {
 class ExtensionViewHost;
 }
@@ skipping 58 matching lines @@
   virtual ~ExtensionDialog();
 
  private:
   friend class base::RefCounted<ExtensionDialog>;
 
   // Use Show() to create instances.
   ExtensionDialog(extensions::ExtensionViewHost* host,
                   ExtensionDialogObserver* observer);
 
   void InitWindow(aura::Window* parent_window, int width, int height);
+  ExtensionViewViews* GetExtensionView() const;
 
   // Window Title
   base::string16 window_title_;
 
   // The contained host for the view.
   scoped_ptr<extensions::ExtensionViewHost> host_;
 
   content::NotificationRegistrar registrar_;
 
   // The observer of this popup.
   ExtensionDialogObserver* observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_