Move ExtensionSystem into extensions namespace

chrome/browser/task_manager/task_manager_resource_providers.cc

 // Copyright (c) 2012 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/task_manager/task_manager_resource_providers.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 1169 matching lines @@
 }
 
 void TaskManagerExtensionProcessResource::SetSupportNetworkUsage() {
   NOTREACHED();
 }
 
 const Extension* TaskManagerExtensionProcessResource::GetExtension() const {
   Profile* profile = Profile::FromBrowserContext(
       render_view_host_->GetProcess()->GetBrowserContext());
   ExtensionProcessManager* process_manager =
-      ExtensionSystem::Get(profile)->process_manager();
+      extensions::ExtensionSystem::Get(profile)->process_manager();
   return process_manager->GetExtensionForRenderViewHost(render_view_host_);
 }
 
 bool TaskManagerExtensionProcessResource::IsBackground() const {
   WebContents* web_contents =
       WebContents::FromRenderViewHost(render_view_host_);
   chrome::ViewType view_type = chrome::GetViewType(web_contents);
   return view_type == chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
 }
 
@@ skipping 292 matching lines @@
 
   return &resource_;
 }
 
 void TaskManagerBrowserProcessResourceProvider::StartUpdating() {
   task_manager_->AddResource(&resource_);
 }
 
 void TaskManagerBrowserProcessResourceProvider::StopUpdating() {
 }