Remove prefixed EME.

media/test/data/eme_player_js/eme_app.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.
 
 // EMEApp is responsible for starting playback on the eme_player.html page.
 // It selects the suitable player based on key system and other test options.
 function EMEApp(testConfig) {
   this.video_ = null;
   this.testConfig_ = testConfig;
   this.updateDocument(testConfig);
@@ skipping 36 matching lines @@
     }
     Utils.timeLog('Media player created.');
     return videoPlayer;
   });
 };
 
 EMEApp.prototype.updateDocument = function(testConfig) {
   // Update document lists with test configuration values.
   Utils.addOptions(KEYSYSTEM_ELEMENT_ID, KEY_SYSTEMS);
   Utils.addOptions(MEDIA_TYPE_ELEMENT_ID, MEDIA_TYPES);
-  Utils.addOptions(USE_PREFIXED_EME_ID, EME_VERSIONS_OPTIONS,
-                   EME_DISABLED_OPTIONS);
   document.getElementById(MEDIA_FILE_ELEMENT_ID).value =
       testConfig.mediaFile || DEFAULT_MEDIA_FILE;
   document.getElementById(LICENSE_SERVER_ELEMENT_ID).value =
       testConfig.licenseServerURL || DEFAULT_LICENSE_SERVER;
   if (testConfig.keySystem)
     Utils.ensureOptionInList(KEYSYSTEM_ELEMENT_ID, testConfig.keySystem);
   if (testConfig.mediaType)
     Utils.ensureOptionInList(MEDIA_TYPE_ELEMENT_ID, testConfig.mediaType);
   document.getElementById(USE_MSE_ELEMENT_ID).value = testConfig.useMSE;
-  if (testConfig.usePrefixedEME)
-    document.getElementById(USE_PREFIXED_EME_ID).value = EME_PREFIXED_VERSION;
 };
 
 EMEApp.prototype.updateTestConfig = function() {
   // Reload test configuration from document.
   this.testConfig_.mediaFile =
       document.getElementById(MEDIA_FILE_ELEMENT_ID).value;
   this.testConfig_.keySystem =
       document.getElementById(KEYSYSTEM_ELEMENT_ID).value;
   this.testConfig_.mediaType =
       document.getElementById(MEDIA_TYPE_ELEMENT_ID).value;
   this.testConfig_.useMSE =
       document.getElementById(USE_MSE_ELEMENT_ID).value == 'true';
-  this.testConfig_.usePrefixedEME = (
-      document.getElementById(USE_PREFIXED_EME_ID).value ==
-      EME_PREFIXED_VERSION);
   this.testConfig_.licenseServerURL =
       document.getElementById(LICENSE_SERVER_ELEMENT_ID).value;
 };