[filebrowser] More reliable file saving in Photo Editor

chrome/browser/resources/file_manager/js/mpeg_parser.js

 // Copyright (c) 2011 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.
 
 function MpegParser(parent) {
-  MetadataParser.apply(this, [parent]);
-  this.verbose = true;
+  MetadataParser.call(this, parent, 'mpeg', /\.(mp4|m4v|m4a|mpe?g4?)$/i);
 }
 
-MpegParser.parserType = 'mpeg';
-
 MpegParser.prototype = {__proto__: MetadataParser.prototype};
 
-MpegParser.prototype.urlFilter = /\.(mp4|m4v|m4a|mpe?g4?)$/i;
-
 MpegParser.HEADER_SIZE = 8;
 
 MpegParser.readAtomSize = function(br, opt_end) {
   var pos = br.tell();
 
   if (opt_end) {
     // Assert that opt_end <= buffer end.
     // When supplied, opt_end is the end of the enclosing atom and is used to
     // check the correct nesting.
     br.validateRead(opt_end - pos);
@@ skipping 229 matching lines @@
       // The previous read did not return the next atom header, EOF reached.
       this.vlog("EOF @" + filePos);
       onSuccess();
     }
   } catch(e) {
     return onError(e.toString());
   }
 };
 
 MetadataDispatcher.registerParserClass(MpegParser);