Extract NativeAppWindow from src/extensions

athena/extensions/athena_app_window_client_base.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 ATHENA_EXTENSIONS_ATHENA_APP_WINDOW_CLIENT_BASE_H_
 #define ATHENA_EXTENSIONS_ATHENA_APP_WINDOW_CLIENT_BASE_H_
 
 #include "base/macros.h"
 #include "extensions/browser/app_window/app_window_client.h"
 
 namespace athena {
 
 // Athena's base impl of AppWindowClient.
 class AthenaAppWindowClientBase : public extensions::AppWindowClient {
  public:
   AthenaAppWindowClientBase();
   virtual ~AthenaAppWindowClientBase();
 
  private:
   // extensions::AppWindowClient
-  virtual extensions::NativeAppWindow* CreateNativeAppWindow(
+  virtual native_app_window::NativeAppWindow* CreateNativeAppWindow(
       extensions::AppWindow* window,
-      const extensions::AppWindow::CreateParams& params) OVERRIDE;
+      const native_app_window::AppWindowCreateParams& params) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(AthenaAppWindowClientBase);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_EXTENSIONS_ATHENA_APP_WINDOW_CLIENT_BASE_H_