Move BrowserThread to content namespace.

content/browser/appcache/chrome_appcache_service.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 "content/browser/appcache/chrome_appcache_service.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "net/base/net_errors.h"
 #include "webkit/quota/quota_manager.h"
 
+using content::BrowserThread;
+
 ChromeAppCacheService::ChromeAppCacheService(
     quota::QuotaManagerProxy* quota_manager_proxy)
     : AppCacheService(quota_manager_proxy),
       resource_context_(NULL) {
 }
 
 void ChromeAppCacheService::InitializeOnIOThread(
     const FilePath& cache_path,
     const content::ResourceContext* resource_context,
     scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy) {
@@ skipping 32 matching lines @@
 }
 
 void ChromeAppCacheService::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(type == content::NOTIFICATION_PURGE_MEMORY);
   PurgeMemory();
 }