Create a very simple TabContentsView (and not fully implemented yet) and add more supporting code...

chrome/browser/browser_process_impl.h

 // Copyright (c) 2011 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.
 
 // When each service is created, we set a flag indicating this. At this point,
 // the service initialization could fail or succeed. This allows us to remember
 // if we tried to create a service, and not try creating it over and over if
 // the creation failed.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_
@@ skipping 15 matching lines @@
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "ipc/ipc_message.h"
 
 class BrowserOnlineStateObserver;
 class ChromeNetLog;
 class ChromeResourceDispatcherHostDelegate;
 class CommandLine;
 class DevToolsProtocolHandler;
 class FilePath;
-class NotificationService;
 class PluginDataRemover;
 class RemoteDebuggingServer;
 class TabCloseableStateWatcher;
 
 namespace policy{
 class BrowserPolicyConnector;
 };
 
 // Real implementation of BrowserProcess that creates and returns the services.
 class BrowserProcessImpl : public BrowserProcess,
@@ skipping 190 matching lines @@
 
   // Manager for desktop notification UI.
   bool created_notification_ui_manager_;
   scoped_ptr<NotificationUIManager> notification_ui_manager_;
 
   scoped_ptr<AutomationProviderList> automation_provider_list_;
 
   scoped_ptr<GoogleURLTracker> google_url_tracker_;
   scoped_ptr<IntranetRedirectDetector> intranet_redirect_detector_;
 
-  scoped_ptr<NotificationService> main_notification_service_;
-
   scoped_ptr<TabCloseableStateWatcher> tab_closeable_state_watcher_;
 
   scoped_ptr<BackgroundModeManager> background_mode_manager_;
 
   scoped_ptr<StatusTray> status_tray_;
 
   bool created_safe_browsing_service_;
   scoped_refptr<SafeBrowsingService> safe_browsing_service_;
 
   unsigned int module_ref_count_;
@@ skipping 60 matching lines @@
   scoped_refptr<GpuBlacklistUpdater> gpu_blacklist_updater_;
 
 #if !defined(OS_CHROMEOS)
   scoped_ptr<ComponentUpdateService> component_updater_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_