Changed change processors to use ScopedStopObserving

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"
 
@@ skipping 40 matching lines @@
   // password store only after the sync_api transaction is released, else there
   // is risk of deadlock due to the password store posting tasks to the UI
   // thread (http://crbug.com/70658).
   virtual void CommitChangesFromSyncModel() OVERRIDE;
 
  protected:
   virtual void StartImpl(Profile* profile) OVERRIDE;
   virtual void StopImpl() OVERRIDE;
 
  private:
+  friend class ScopedStopObserving<PasswordChangeProcessor>;
   void StartObserving();
   void StopObserving();
 
   // The two models should be associated according to this ModelAssociator.
   PasswordModelAssociator* model_associator_;
 
   // The model we are processing changes from.  This is owned by the
   // WebDataService which is kept alive by our data type controller
   // holding a reference.
   PasswordStore* password_store_;
 
   // Buffers used between ApplyChangesFromSyncModel and
   // CommitChangesFromSyncModel.
   PasswordModelAssociator::PasswordVector new_passwords_;
   PasswordModelAssociator::PasswordVector updated_passwords_;
   PasswordModelAssociator::PasswordVector deleted_passwords_;
 
   content::NotificationRegistrar notification_registrar_;
 
   bool observing_;
 
   MessageLoop* expected_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordChangeProcessor);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_PASSWORD_CHANGE_PROCESSOR_H_