Implement SyncFileSystemService::GetFileSyncStatus method

chrome/browser/sync_file_system/drive_file_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 CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_FILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_FILE_SYNC_SERVICE_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 51 matching lines @@
   virtual void RegisterOriginForTrackingChanges(
       const GURL& origin,
       const fileapi::SyncStatusCallback& callback) OVERRIDE;
   virtual void UnregisterOriginForTrackingChanges(
       const GURL& origin,
       const fileapi::SyncStatusCallback& callback) OVERRIDE;
   virtual void ProcessRemoteChange(
       RemoteChangeProcessor* processor,
       const fileapi::SyncOperationCallback& callback) OVERRIDE;
   virtual LocalChangeProcessor* GetLocalChangeProcessor() OVERRIDE;
+  virtual bool IsConflicting(const fileapi::FileSystemURL& url) OVERRIDE;
   virtual void GetConflictFiles(
       const GURL& origin,
       const fileapi::SyncFileSetCallback& callback) OVERRIDE;
   virtual void GetRemoteFileMetadata(
       const fileapi::FileSystemURL& url,
       const fileapi::SyncFileMetadataCallback& callback) OVERRIDE;
   virtual RemoteServiceState GetCurrentState() const OVERRIDE;
 
   // LocalChangeProcessor overrides.
   virtual void ApplyLocalChange(
@@ skipping 237 matching lines @@
   // Use WeakPtrFactory instead of SupportsWeakPtr to revoke the weak pointer
   // in |token_|.
   base::WeakPtrFactory<DriveFileSyncService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DriveFileSyncService);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_FILE_SYNC_SERVICE_H_