Move Extension into extensions namespace

chrome/browser/ui/browser_window.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_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 #pragma once
 
 #include "base/callback_forward.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ skipping 17 matching lines @@
 #if !defined(OS_MACOSX)
 class ToolbarView;
 #endif
 
 namespace content {
 class WebContents;
 struct NativeWebKeyboardEvent;
 struct SSLStatus;
 }
 
+namespace extensions {
+class Extension;
+}
+
 namespace gfx {
 class Rect;
 class Size;
 }
 
-class Extension;
 
 enum DevToolsDockSide {
   DEVTOOLS_DOCK_SIDE_BOTTOM = 0,
   DEVTOOLS_DOCK_SIDE_RIGHT = 1
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserWindow interface
 //  An interface implemented by the "view" of the Browser window.
 //  This interface includes BaseWindow methods as well as Browser window
@@ skipping 232 matching lines @@
   // if the renderer did not process it.
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) = 0;
 
   // Shows the create web app shortcut dialog box.
   virtual void ShowCreateWebAppShortcutsDialog(
       TabContentsWrapper* tab_contents) = 0;
 
   // Shows the create chrome app shortcut dialog box.
   virtual void ShowCreateChromeAppShortcutsDialog(Profile* profile,
-                                                  const Extension* app) = 0;
+      const extensions::Extension* app) = 0;
+
 
   // Clipboard commands applied to the whole browser window.
   virtual void Cut() = 0;
   virtual void Copy() = 0;
   virtual void Paste() = 0;
 
 #if defined(OS_MACOSX)
   // Opens the tabpose view.
   virtual void OpenTabpose() = 0;
 
@@ skipping 83 matching lines @@
 
   // Returns the ToolbarView.
   virtual ToolbarView* GetToolbarView() const = 0;
 #endif
 
  protected:
   virtual ~BrowserWindowTesting() {}
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_