Remove TransferFileFromRemoteToLocal, which are no longer used.

chrome/browser/chromeos/drive/dummy_file_system.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_CHROMEOS_DRIVE_DUMMY_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_DUMMY_FILE_SYSTEM_H_
 
 #include "chrome/browser/chromeos/drive/file_system_interface.h"
 
 namespace drive {
 
 // Dummy implementation of FileSystemInterface. All functions do nothing.
 class DummyFileSystem : public FileSystemInterface {
  public:
   virtual ~DummyFileSystem() {}
   virtual void Initialize() OVERRIDE {}
   virtual void AddObserver(FileSystemObserver* observer) OVERRIDE {}
   virtual void RemoveObserver(FileSystemObserver* observer) OVERRIDE {}
   virtual void CheckForUpdates() OVERRIDE {}
-  virtual void TransferFileFromRemoteToLocal(
-      const base::FilePath& remote_src_file_path,
-      const base::FilePath& local_dest_file_path,
-      const FileOperationCallback& callback) OVERRIDE {}
   virtual void TransferFileFromLocalToRemote(
       const base::FilePath& local_src_file_path,
       const base::FilePath& remote_dest_file_path,
       const FileOperationCallback& callback) OVERRIDE {}
   virtual void OpenFile(const base::FilePath& file_path,
                         OpenMode open_mode,
                         const OpenFileCallback& callback) OVERRIDE {}
   virtual void Copy(const base::FilePath& src_file_path,
                     const base::FilePath& dest_file_path,
                     const FileOperationCallback& callback) OVERRIDE {}
@@ skipping 62 matching lines @@
       const FileOperationCallback& callback) OVERRIDE {}
   virtual void GetCacheEntryByResourceId(
       const std::string& resource_id,
       const GetCacheEntryCallback& callback) OVERRIDE {}
   virtual void Reload() OVERRIDE {}
 };
 
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_DUMMY_FILE_SYSTEM_H_