Move Extension 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 54 matching lines @@
 #include "skia/ext/skia_utils_mac.h"
 #endif
 #if defined(OS_WIN)
 #include "chrome/browser/app_icon_win.h"
 #include "ui/gfx/icon_util.h"
 #endif  // defined(OS_WIN)
 
 using content::BrowserChildProcessHostIterator;
 using content::BrowserThread;
 using content::WebContents;
+using extensions::Extension;
 
 namespace {
 
 // Returns the appropriate message prefix ID for tabs and extensions,
 // reflecting whether they are apps or in incognito mode.
 int GetMessagePrefixID(bool is_app,
                        bool is_extension,
                        bool is_incognito,
                        bool is_prerender,
                        bool is_instant_preview) {
@@ skipping 1419 matching lines @@
 
   return &resource_;
 }
 
 void TaskManagerBrowserProcessResourceProvider::StartUpdating() {
   task_manager_->AddResource(&resource_);
 }
 
 void TaskManagerBrowserProcessResourceProvider::StopUpdating() {
 }