Extract NativeAppWindow from src/extensions

extensions/shell/browser/shell_app_window_client.h

 // Copyright 2014 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 EXTENSIONS_SHELL_BROWSER_SHELL_APP_WINDOW_CLIENT_H_
 #define EXTENSIONS_SHELL_BROWSER_SHELL_APP_WINDOW_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "extensions/browser/app_window/app_window_client.h"
 
 namespace extensions {
 
 // app_shell's AppWindowClient implementation.
 class ShellAppWindowClient : public AppWindowClient {
  public:
   ShellAppWindowClient();
   virtual ~ShellAppWindowClient();
 
   // AppWindowClient overrides:
   virtual AppWindow* CreateAppWindow(content::BrowserContext* context,
                                      const Extension* extension) OVERRIDE;
-  virtual NativeAppWindow* CreateNativeAppWindow(
+  virtual native_app_window::NativeAppWindow* CreateNativeAppWindow(
       AppWindow* window,
-      const AppWindow::CreateParams& params) OVERRIDE;
+      const native_app_window::AppWindowCreateParams& params) OVERRIDE;
   virtual void OpenDevToolsWindow(content::WebContents* web_contents,
                                   const base::Closure& callback) OVERRIDE;
   virtual bool IsCurrentChannelOlderThanDev() OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ShellAppWindowClient);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_SHELL_BROWSER_SHELL_APP_WINDOW_CLIENT_H_