Media Galleries API Metadata: SafeMediaMetadataParser and IPCTunnelDataReader.

chrome/utility/media_galleries/media_metadata_parser.cc

 // 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.
 
 #include "chrome/utility/media_galleries/media_metadata_parser.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
+#include "media/base/data_source.h"
 
 namespace metadata {
 
-MediaMetadataParser::MediaMetadataParser(DataReader* reader,
+MediaMetadataParser::MediaMetadataParser(media::DataSource* source,
                                          const std::string& mime_type)
-    : reader_(reader),
+    : source_(source),
       metadata_(new MediaMetadata) {
   metadata_->mime_type = mime_type;
 }
 
 MediaMetadataParser::~MediaMetadataParser() {}
 
 void MediaMetadataParser::Start(const MetadataCallback& callback) {
   DCHECK(callback_.is_null());
   callback_ = callback;
 
   // TODO(tommycli): Implement for various mime types.
   callback_.Run(metadata_.Pass());
 }
 
 }  // namespace metadata