media: Allow config change between clear and encrypted streams

media/test/data/eme_player_js/test_config.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.
 
 // Test configuration used by test page to configure the player app and other
 // test specific configurations.
 function TestConfig() {
   this.mediaFile = null;
   this.keySystem = null;
   this.mediaType = null;
   this.licenseServerURL = null;
   this.useMSE = false;
   this.runFPS = false;
   this.playTwice = false;
+  this.configChangeType = CONFIG_CHANGE_TYPE.CLEAR_TO_CLEAR;
 }
 
 TestConfig.prototype.loadQueryParams = function() {
   // Load query parameters and set default values.
   var r = /([^&=]+)=?([^&]*)/g;
   // Lambda function for decoding extracted match values. Replaces '+' with
   // space so decodeURIComponent functions properly.
   var decodeURI = function decodeURI(s) {
       return decodeURIComponent(s.replace(/\+/g, ' '));
   };
@@ skipping 27 matching lines @@
   // Reload test configuration from document.
   this.mediaFile = document.getElementById(MEDIA_FILE_ELEMENT_ID).value;
   this.keySystem = document.getElementById(KEYSYSTEM_ELEMENT_ID).value;
   this.mediaType = document.getElementById(MEDIA_TYPE_ELEMENT_ID).value;
   this.useMSE = document.getElementById(USE_MSE_ELEMENT_ID).value == 'true';
   this.playTwice =
       document.getElementById(USE_PLAY_TWICE_ELEMENT_ID).value == 'true';
   this.licenseServerURL =
       document.getElementById(LICENSE_SERVER_ELEMENT_ID).value;
 };