Move BrowserThread to content namespace.

chrome/browser/extensions/extension_tab_id_map.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_tab_id_map.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "chrome/browser/sessions/restore_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/navigation_details.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 
+using content::BrowserThread;
+
 //
 // ExtensionTabIdMap::TabObserver
 //
 
 // This class listens for notifications about new and closed tabs on the UI
 // thread, and notifies the ExtensionTabIdMap on the IO thread. It should only
 // ever be accessed on the UI thread.
 class ExtensionTabIdMap::TabObserver : public content::NotificationObserver {
  public:
   TabObserver();
@@ skipping 138 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   RenderId render_id(render_process_host_id, routing_id);
   TabAndWindowIdMap::iterator iter = map_.find(render_id);
   if (iter != map_.end()) {
     *tab_id = iter->second.first;
     *window_id = iter->second.second;
     return true;
   }
   return false;
 }