Cleanup: Remove unneeded forward declarations in chrome/browser/sync.

chrome/browser/sync/glue/password_change_processor.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_PASSWORD_CHANGE_PROCESSOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_PASSWORD_CHANGE_PROCESSOR_H_
 #pragma once
 
 #include "chrome/browser/sync/glue/change_processor.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/sync/glue/password_model_associator.h"
 #include "chrome/browser/sync/glue/sync_backend_host.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_types.h"
 
 class PasswordStore;
 class MessageLoop;
-class NotificationService;
 
 namespace browser_sync {
 
 class UnrecoverableErrorHandler;
 
 // This class is responsible for taking changes from the password backend and
 // applying them to the sync_api 'syncable' model, and vice versa. All
 // operations and use of this class are from the DB thread on Windows and Linux,
 // or the password thread on Mac.
 class PasswordChangeProcessor : public ChangeProcessor,
@@ skipping 49 matching lines @@
   bool observing_;
 
   MessageLoop* expected_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordChangeProcessor);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_PASSWORD_CHANGE_PROCESSOR_H_