Implement CopyFileFromLocal of MTPDeviceAsyncDelegate.

chrome/browser/media_galleries/fileapi/device_media_async_file_util.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/media_galleries/fileapi/device_media_async_file_util.h"
 
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task_runner_util.h"
@@ skipping 373 matching lines @@
 }
 
 void DeviceMediaAsyncFileUtil::CopyInForeignFile(
     scoped_ptr<FileSystemOperationContext> context,
     const base::FilePath& src_file_path,
     const FileSystemURL& dest_url,
     const StatusCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   NOTIMPLEMENTED();
   callback.Run(base::File::FILE_ERROR_SECURITY);
+  // TODO(yawano): Connect CopyInForeignFile to
+  // MTPDeviceAsyncDelegate::CopyFileFromLocal.
 }
 
 void DeviceMediaAsyncFileUtil::DeleteFile(
     scoped_ptr<FileSystemOperationContext> context,
     const FileSystemURL& url,
     const StatusCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   NOTIMPLEMENTED();
   callback.Run(base::File::FILE_ERROR_SECURITY);
 }
@@ skipping 103 matching lines @@
       FROM_HERE,
       base::Bind(&MediaPathFilterWrapper::FilterMediaEntries,
                  media_path_filter_wrapper_,
                  file_list),
       base::Bind(&OnDidCheckMediaForReadDirectory, callback, has_more));
 }
 
 bool DeviceMediaAsyncFileUtil::validate_media_files() const {
   return media_path_filter_wrapper_.get() != NULL;
 }