Extract NativeAppWindow from src/extensions

chrome/browser/ui/apps/chrome_app_window_client.cc

 // 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.
 
 #include "chrome/browser/ui/apps/chrome_app_window_client.h"
 
 #include "base/memory/singleton.h"
 #include "chrome/browser/apps/scoped_keep_alive.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/common/extensions/features/feature_channel.h"
@@ skipping 24 matching lines @@
 #if defined(OS_ANDROID)
   return NULL;
 #else
   return new extensions::AppWindow(
       context,
       new ChromeAppDelegate(make_scoped_ptr(new ScopedKeepAlive)),
       extension);
 #endif
 }
 
-extensions::NativeAppWindow* ChromeAppWindowClient::CreateNativeAppWindow(
+native_app_window::NativeAppWindow*
+ChromeAppWindowClient::CreateNativeAppWindow(
     extensions::AppWindow* window,
     const extensions::AppWindow::CreateParams& params) {
 #if defined(OS_ANDROID)
   return NULL;
 #else
   return CreateNativeAppWindowImpl(window, params);
 #endif
 }
 
 void ChromeAppWindowClient::OpenDevToolsWindow(
     content::WebContents* web_contents,
     const base::Closure& callback) {
   DevToolsWindow* devtools_window = DevToolsWindow::OpenDevToolsWindow(
       web_contents, DevToolsToggleAction::ShowConsole());
   devtools_window->SetLoadCompletedCallback(callback);
 }
 
 bool ChromeAppWindowClient::IsCurrentChannelOlderThanDev() {
   return extensions::GetCurrentChannel() > chrome::VersionInfo::CHANNEL_DEV;
 }