Make use of InvalidationService

chrome/browser/sync/glue/android_invalidator_bridge.h

-// Copyright (c) 2012 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_ANDROID_INVALIDATOR_BRIDGE_H_
-#define CHROME_BROWSER_SYNC_GLUE_ANDROID_INVALIDATOR_BRIDGE_H_
-
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "sync/notifier/invalidator.h"
-
-class Profile;
-
-namespace syncer {
-class InvalidationHandler;
-}  // namespace
-
-namespace browser_sync {
-
-// A bridge that converts Chrome events on the UI thread to sync
-// notifications on the sync task runner.
-//
-// Listens to NOTIFICATION_SYNC_REFRESH_REMOTE (on the UI thread) and triggers
-// each observer's OnIncomingNotification method on these notifications (on the
-// sync task runner).  Android clients receive invalidations through this
-// mechanism exclusively, hence the name.
-class AndroidInvalidatorBridge
-    : public content::NotificationObserver, syncer::Invalidator {
- public:
-  // Must be created and destroyed on the UI thread.
-  AndroidInvalidatorBridge(
-      const Profile* profile,
-      const scoped_refptr<base::SequencedTaskRunner>& sync_task_runner);
-  virtual ~AndroidInvalidatorBridge();
-
-  // Must be called on the UI thread while the sync task runner is still
-  // around.  No other member functions on the sync thread may be called after
-  // this is called.
-  void StopForShutdown();
-
-  // Invalidator implementation.  Must be called on the sync task runner.
-  virtual void RegisterHandler(syncer::InvalidationHandler* handler) OVERRIDE;
-  virtual void UpdateRegisteredIds(syncer::InvalidationHandler* handler,
-                                   const syncer::ObjectIdSet& ids) OVERRIDE;
-  virtual void UnregisterHandler(syncer::InvalidationHandler* handler) OVERRIDE;
-  virtual void Acknowledge(const invalidation::ObjectId& id,
-                           const syncer::AckHandle& ack_handle) OVERRIDE;
-  virtual syncer::InvalidatorState GetInvalidatorState() const OVERRIDE;
-
-  // The following members of the Invalidator interface are not applicable to
-  // this invalidator and are implemented as no-ops.
-  virtual void UpdateCredentials(
-      const std::string& email, const std::string& token) OVERRIDE;
-  virtual void SendInvalidation(
-      const syncer::ObjectIdInvalidationMap& invalidation_map) OVERRIDE;
-
-  bool IsHandlerRegisteredForTest(
-      syncer::InvalidationHandler* handler) const;
-  syncer::ObjectIdSet GetRegisteredIdsForTest(
-      syncer::InvalidationHandler* handler) const;
-
-  // NotificationObserver implementation. Called on UI thread.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
- private:
-  // Inner class to hold all the bits used on |sync_task_runner_|.
-  class Core;
-
-  const scoped_refptr<base::SequencedTaskRunner> sync_task_runner_;
-
-  // Created on the UI thread, used only on |sync_task_runner_|.
-  const scoped_refptr<Core> core_;
-
-  // Used only on the UI thread.
-  content::NotificationRegistrar registrar_;
-};
-
-}  // namespace browser_sync
-
-#endif  // CHROME_BROWSER_SYNC_GLUE_ANDROID_INVALIDATOR_BRIDGE_H_