EME: Remove all references to `needkey` except the UMA name.

media/test/data/eme_player_js/player_utils.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.
 
 // The PlayerUtils provides utility functions to binding common media events
 // to specific player functions. It also provides functions to load media source
 // base on test configurations.
 var PlayerUtils = new function() {
 }
 
 // Prepares a video element for playback by setting default event handlers
 // and source attribute.
 PlayerUtils.registerDefaultEventListeners = function(player) {
   Utils.timeLog('Registering video event handlers.');
   // Map from event name to event listener function name.  It is common for
   // event listeners to be named onEventName.
   var eventListenerMap = {
     'encrypted': 'onEncrypted',
-    'webkitneedkey': 'onWebkitNeedKey',
-    'webkitkeymessage': 'onWebkitKeyMessage',
-    'webkitkeyadded': 'onWebkitKeyAdded',
-    'webkitkeyerror': 'onWebkitKeyError'
   };
   for (eventName in eventListenerMap) {
     var eventListenerFunction = player[eventListenerMap[eventName]];
     if (eventListenerFunction) {
       player.video.addEventListener(eventName, function(e) {
         player[eventListenerMap[e.type]](e);
       });
     }
   }
 
@@ skipping 121 matching lines @@
       case FILE_IO_TEST_KEYSYSTEM:
         return FileIOTestPlayer;
       default:
         Utils.timeLog(keySystem + ' is not a known key system');
         return ClearKeyPlayer;
     }
   }
   var Player = getPlayerType(testConfig.keySystem);
   return new Player(video, testConfig);
 };