[Sync] Move snapshot cache from SBHI to PSS.

components/browser_sync/profile_sync_service.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 COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 #define COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 348 matching lines @@
   void OnSessionRestoreComplete();
 
   // SyncEngineHost implementation.
   void OnEngineInitialized(
       syncer::ModelTypeSet initial_types,
       const syncer::WeakHandle<syncer::JsBackend>& js_backend,
       const syncer::WeakHandle<syncer::DataTypeDebugInfoListener>&
           debug_info_listener,
       const std::string& cache_guid,
       bool success) override;
-  void OnSyncCycleCompleted() override;
+  void OnSyncCycleCompleted(const syncer::SyncCycleSnapshot& snapshot) override;
   void OnProtocolEvent(const syncer::ProtocolEvent& event) override;
   void OnDirectoryTypeCommitCounterUpdated(
       syncer::ModelType type,
       const syncer::CommitCounters& counters) override;
   void OnDirectoryTypeUpdateCounterUpdated(
       syncer::ModelType type,
       const syncer::UpdateCounters& counters) override;
   void OnDatatypeStatusCounterUpdated(
       syncer::ModelType type,
       const syncer::StatusCounters& counters) override;
@@ skipping 383 matching lines @@
   bool CanConfigureDataTypes() const;
 
   // Called when a SetupInProgressHandle issued by this instance is destroyed.
   virtual void OnSetupInProgressHandleDestroyed();
 
   // This is a cache of the last authentication response we received from the
   // sync server. The UI queries this to display appropriate messaging to the
   // user.
   GoogleServiceAuthError last_auth_error_;
 
+  // Cache of the last SyncCycleSnapshot received from the sync engine.
+  syncer::SyncCycleSnapshot last_snapshot_;
+
   // Was the last SYNC_PASSPHRASE_REQUIRED notification sent because it
   // was required for encryption, decryption with a cached passphrase, or
   // because a new passphrase is required?
   syncer::PassphraseRequiredReason passphrase_required_reason_;
 
   // TODO(ncarter): Put this in a profile, once there is UI for it.
   // This specifies where to find the sync server.
   const GURL sync_service_url_;
 
   // The time that OnConfigureStart is called. This member is zero if
@@ skipping 177 matching lines @@
   base::WeakPtrFactory<ProfileSyncService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(const syncer::SyncProtocolError& error);
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_