Add account_id to signin manager notifications.

chrome/browser/sync_file_system/drive_backend/sync_engine.h

 // Copyright 2013 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_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 130 matching lines @@
   // drive::DriveServiceObserver overrides.
   virtual void OnReadyToSendRequests() OVERRIDE;
   virtual void OnRefreshTokenInvalid() OVERRIDE;
 
   // net::NetworkChangeNotifier::NetworkChangeObserver overrides.
   virtual void OnNetworkChanged(
       net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
 
   // SigninManagerBase::Observer overrides.
   virtual void GoogleSigninFailed(const GoogleServiceAuthError& error) OVERRIDE;
-  virtual void GoogleSigninSucceeded(const std::string& username,
+  virtual void GoogleSigninSucceeded(const std::string& account_id,
+                                     const std::string& username,
                                      const std::string& password) OVERRIDE;
-  virtual void GoogleSignedOut(const std::string& username) OVERRIDE;
+  virtual void GoogleSignedOut(const std::string& account_id,
+                               const std::string& username) OVERRIDE;
 
  private:
   class WorkerObserver;
 
   friend class DriveBackendSyncTest;
   friend class SyncEngineTest;
 
   SyncEngine(const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner,
              const scoped_refptr<base::SequencedTaskRunner>& worker_task_runner,
              const scoped_refptr<base::SequencedTaskRunner>& drive_task_runner,
@@ skipping 64 matching lines @@
   CallbackTracker callback_tracker_;
 
   base::WeakPtrFactory<SyncEngine> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(SyncEngine);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_H_