Have media content and chrome browser tests load data from media/test/data

content/test/data/media/media_source_utils.js

-// 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.
-
-function loadMediaFromURL(video) {
-  installTitleEventHandler(video, 'error');
-  video.addEventListener('playing', function(event) {
-    console.log('Video Playing.');
-  });
-  var source = loadMediaSource(QueryString.mediafile, QueryString.mediatype);
-  video.src = window.URL.createObjectURL(source);
-}
-
-function loadMediaSource(mediaFiles, mediaTypes, appendSourceCallbackFn) {
-  mediaFiles = convertToArray(mediaFiles);
-  mediaTypes = convertToArray(mediaTypes);
-
-  if (!mediaFiles || !mediaTypes)
-    failTest('Missing parameters in loadMediaSource().');
-
-  var totalAppended = 0;
-  function onSourceOpen(e) {
-    console.log('onSourceOpen', e);
-    // We can load multiple media files using the same media type. However, if
-    // more than one media type is used, we expect to have a media type entry
-    // for each corresponding media file.
-    var srcBuffer = null;
-    for (var i = 0; i < mediaFiles.length; i++) {
-      if (i == 0 || mediaFiles.length == mediaTypes.length) {
-        console.log('Creating a source buffer for type ' + mediaTypes[i]);
-        try {
-          srcBuffer = mediaSource.addSourceBuffer(mediaTypes[i]);
-        } catch (e) {
-          failTest('Exception adding source buffer: ' + e.message);
-          return;
-        }
-      }
-      doAppend(mediaFiles[i], srcBuffer);
-    }
-  }
-
-  function doAppend(mediaFile, srcBuffer) {
-    var xhr = new XMLHttpRequest();
-    xhr.open('GET', mediaFile);
-    xhr.responseType = 'arraybuffer';
-    xhr.addEventListener('load', function(e) {
-      var onUpdateEnd = function(e) {
-        console.log('End of appending buffer from ' + mediaFile);
-        srcBuffer.removeEventListener('updateend', onUpdateEnd);
-        totalAppended++;
-        if (totalAppended == mediaFiles.length) {
-          if (appendSourceCallbackFn)
-            appendSourceCallbackFn(mediaSource);
-          else
-            mediaSource.endOfStream();
-        }
-      };
-      srcBuffer.addEventListener('updateend', onUpdateEnd);
-      srcBuffer.appendBuffer(new Uint8Array(e.target.response));
-    });
-    xhr.send();
-  }
-
-  var mediaSource = new MediaSource();
-  mediaSource.addEventListener('sourceopen', onSourceOpen);
-  return mediaSource;
-}