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

chrome/test/data/media/eme_player_js/clearkey_player.js

-// Copyright 2014 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.
-
-// ClearKeyPlayer responsible for playing media using Clear Key key system and
-// the unprefixed version of EME.
-function ClearKeyPlayer(video, testConfig) {
-  this.video = video;
-  this.testConfig = testConfig;
-}
-
-ClearKeyPlayer.prototype.init = function() {
-  PlayerUtils.initEMEPlayer(this);
-};
-
-ClearKeyPlayer.prototype.registerEventListeners = function() {
-  PlayerUtils.registerEMEEventListeners(this);
-};
-
-ClearKeyPlayer.prototype.onMessage = function(message) {
-  Utils.timeLog('MediaKeySession onMessage', message);
-  var initData =
-      Utils.getInitDataFromMessage(message, this.testConfig.mediaType);
-  var key = Utils.getDefaultKey(this.testConfig.forceInvalidResponse);
-  var jwkSet = Utils.createJWKData(initData, key);
-  if (PROMISES_SUPPORTED) {
-    message.target.update(jwkSet).catch(function(error) {
-      Utils.failTest(error, KEY_ERROR);
-    });
-  } else {
-    message.target.update(jwkSet);
-  }
-};