Support app.window.create on athena

extensions/shell/browser/default_shell_browser_main_delegate.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 "extensions/shell/browser/default_shell_browser_main_delegate.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
+#include "extensions/shell/browser/shell_apps_client.h"
 #include "extensions/shell/browser/shell_desktop_controller.h"
 #include "extensions/shell/browser/shell_extension_system.h"
 #include "extensions/shell/common/switches.h"
 
 namespace extensions {
 
 DefaultShellBrowserMainDelegate::DefaultShellBrowserMainDelegate() {
 }
 
 DefaultShellBrowserMainDelegate::~DefaultShellBrowserMainDelegate() {
@@ skipping 18 matching lines @@
   }
 }
 
 void DefaultShellBrowserMainDelegate::Shutdown() {
 }
 
 DesktopController* DefaultShellBrowserMainDelegate::CreateDesktopController() {
   return new ShellDesktopController();
 }
 
+AppsClient* DefaultShellBrowserMainDelegate::CreateAppsClient() {
+  return new ShellAppsClient();
+}
+
 }  // namespace extensions