Media: Add thumbnail extraction to AudioVideoMetadataExtractor.

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 <string>
 
 #include "base/bind.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 38 matching lines @@
 // This runs on |media_thread_|, as the underlying FFmpeg operation is
 // blocking, and the utility thread must not be blocked, so the media file
 // bytes can be sent from the browser process to the utility process.
 scoped_ptr<MediaMetadataParser::MediaMetadata> ParseAudioVideoMetadata(
     media::DataSource* source,
     scoped_ptr<MediaMetadataParser::MediaMetadata> metadata) {
   DCHECK(source);
   DCHECK(metadata.get());
   media::AudioVideoMetadataExtractor extractor;
 
-  if (!extractor.Extract(source))
+  // TODO(tommycli): Add attached picture extraction.
+  if (!extractor.Extract(source, false /* extract_attached_pics */))
     return metadata.Pass();
 
   if (extractor.duration() >= 0)
     metadata->duration.reset(new double(extractor.duration()));
 
   if (extractor.height() >= 0 && extractor.width() >= 0) {
     metadata->height.reset(new int(extractor.height()));
     metadata->width.reset(new int(extractor.width()));
   }
 
@@ skipping 95 matching lines @@
         base::Bind(&FinishParseImageMetadata, base::Owned(extractor),
                    base::Passed(&metadata), callback));
     return;
   }
 
   // TODO(tommycli): Implement for image mime types.
   callback.Run(metadata.Pass());
 }
 
 }  // namespace metadata