Revert of Replace PO2TS::GetPrimaryAccountId() with SMB::GetAuthenticatedAccountId.

chrome/browser/sync_file_system/drive_backend_v1/api_util.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_V1_API_UTIL_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_V1_API_UTIL_H_
 
 #include <map>
 #include <string>
 
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "chrome/browser/drive/drive_service_interface.h"
 #include "chrome/browser/sync_file_system/drive_backend_v1/api_util_interface.h"
 #include "net/base/network_change_notifier.h"
 #include "webkit/common/blob/scoped_file.h"
 
 class GURL;
 class Profile;
 class ProfileOAuth2TokenService;
-class SigninManagerBase;
 
 namespace drive { class DriveUploaderInterface; }
 
 namespace sync_file_system {
 namespace drive_backend {
 
 // This class is responsible for talking to the Drive service to get and put
 // Drive directories, files and metadata.
 // This class is owned by DriveFileSyncService.
 class APIUtil : public APIUtilInterface,
@@ skipping 204 matching lines @@
   UploadKey RegisterUploadCallback(const UploadFileCallback& callback);
   UploadFileCallback GetAndUnregisterUploadCallback(UploadKey key);
   void CancelAllUploads(google_apis::GDataErrorCode error);
 
   std::string GetRootResourceId() const;
 
   scoped_ptr<drive::DriveServiceInterface> drive_service_;
   scoped_ptr<drive::DriveUploaderInterface> drive_uploader_;
 
   ProfileOAuth2TokenService* oauth_service_;
-  SigninManagerBase* signin_manager_;
 
   UploadCallbackMap upload_callback_map_;
   UploadKey upload_next_key_;
 
   base::FilePath temp_dir_path_;
 
   std::string root_resource_id_;
 
   bool has_initialized_token_;
 
   ObserverList<APIUtilObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(APIUtil);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_V1_API_UTIL_H_