Remove TransferFileFromRemoteToLocal, which are no longer used.

chrome/browser/chromeos/drive/fake_file_system.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/chromeos/drive/fake_file_system.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 36 matching lines @@
 }
 
 void FakeFileSystem::RemoveObserver(FileSystemObserver* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void FakeFileSystem::CheckForUpdates() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
-void FakeFileSystem::TransferFileFromRemoteToLocal(
-    const base::FilePath& remote_src_file_path,
-    const base::FilePath& local_dest_file_path,
-    const FileOperationCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-}
-
 void FakeFileSystem::TransferFileFromLocalToRemote(
     const base::FilePath& local_src_file_path,
     const base::FilePath& remote_dest_file_path,
     const FileOperationCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void FakeFileSystem::OpenFile(const base::FilePath& file_path,
                               OpenMode open_mode,
                               const OpenFileCallback& callback) {
@@ skipping 310 matching lines @@
       callback.Run(FILE_ERROR_OK, entry.Pass());
       return;
     }
   }
 
   callback.Run(FILE_ERROR_NOT_FOUND, scoped_ptr<ResourceEntry>());
 }
 
 }  // namespace test_util
 }  // namespace drive