media: Allow config change between clear and encrypted streams

media/test/data/eme_player_js/globals.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.
 
 // This file contains global constant variables used by the application.
 
 // Renewal message header. External Clear Key implementation returns this as
 // part of renewal messages.
 var EME_RENEWAL_MESSAGE_HEADER = 'RENEWAL';
 
@@ skipping 35 matching lines @@
     'org.chromium.externalclearkey.platformverificationtest';
 var CRASH_TEST_KEYSYSTEM = 'org.chromium.externalclearkey.crash';
 
 // Key system name:value map to show on the document page.
 var KEY_SYSTEMS = {
   'Widevine': WIDEVINE_KEYSYSTEM,
   'Clearkey': CLEARKEY,
   'External Clearkey': EXTERNAL_CLEARKEY
 };
 
+var CONFIG_CHANGE_TYPE = {
+  CLEAR_TO_CLEAR : '0',
+  CLEAR_TO_ENCRYPTED : '1',
+  ENCRYPTED_TO_CLEAR : '2',
+  ENCRYPTED_TO_ENCRYPTED : '3'
+};
+
 // General WebM and MP4 name:content_type map to show on the document page.
 var MEDIA_TYPES = {
   'WebM - Audio Video': 'video/webm; codecs="vorbis, vp8"',
   'WebM - Video Only': 'video/webm; codecs="vp8"',
   'WebM - Audio Only': 'video/webm; codecs="vorbis"',
   'MP4 - Video Only': 'video/mp4; codecs="avc1.4D000C"',
   'MP4 - Audio Only': 'audio/mp4; codecs="mp4a.40.2"'
 };
 
 // Global document elements ID's.
 var VIDEO_ELEMENT_ID = 'video';
 var MEDIA_FILE_ELEMENT_ID = 'mediaFile';
 var LICENSE_SERVER_ELEMENT_ID = 'licenseServer';
 var KEYSYSTEM_ELEMENT_ID = 'keySystemList';
 var MEDIA_TYPE_ELEMENT_ID = 'mediaTypeList';
 var USE_MSE_ELEMENT_ID = 'useMSE';
 var USE_PLAY_TWICE_ELEMENT_ID = 'playTwice';
 
 // These variables get updated every second, so better to have global pointers.
 var decodedFPSElement = document.getElementById('decodedFPS');
 var droppedFPSElement = document.getElementById('droppedFPS');
 var droppedFramesElement = document.getElementById('droppedFrames');
 var docLogs = document.getElementById('logs');