Move BrowserThread to content namespace.

chrome/browser/extensions/syncable_extension_settings_storage.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/syncable_extension_settings_storage.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_settings_sync_util.h"
 #include "chrome/browser/sync/api/sync_data.h"
 #include "chrome/browser/sync/protocol/extension_setting_specifics.pb.h"
 #include "content/public/browser/browser_thread.h"
 
+using content::BrowserThread;
+
 SyncableExtensionSettingsStorage::SyncableExtensionSettingsStorage(
     const scoped_refptr<ObserverListThreadSafe<ExtensionSettingsObserver> >&
         observers,
     const std::string& extension_id,
     ExtensionSettingsStorage* delegate)
     : observers_(observers),
       extension_id_(extension_id),
       delegate_(delegate),
       sync_processor_(NULL) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
@@ skipping 409 matching lines @@
   if (result.HasError()) {
     return SyncError(
         FROM_HERE,
         std::string("Error pushing sync remove to local settings: ") +
             result.GetError(),
         syncable::EXTENSION_SETTINGS);
   }
   changes->AppendChange(key, old_value, NULL);
   return SyncError();
 }