Move ExtensionHost 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 1472 matching lines @@
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED:
       AddToTaskManager(
           content::Details<content::RenderViewHost>(details).ptr());
       break;
     case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED:
       RemoveFromTaskManager(
-          content::Details<ExtensionHost>(details).ptr()->render_view_host());
+          content::Details<extensions::ExtensionHost>(details).ptr()->
+          render_view_host());
       break;
     case chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED:
       RemoveFromTaskManager(
           content::Details<content::RenderViewHost>(details).ptr());
       break;
     default:
       NOTREACHED() << "Unexpected notification.";
       return;
   }
 }
@@ skipping 186 matching lines @@
 
   return &resource_;
 }
 
 void TaskManagerBrowserProcessResourceProvider::StartUpdating() {
   task_manager_->AddResource(&resource_);
 }
 
 void TaskManagerBrowserProcessResourceProvider::StopUpdating() {
 }