Rename ExceptionCode constants to use the names in the spec (2/3)

Source/modules/encryptedmedia/MediaKeySession.cpp

 /*
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 94 matching lines @@
 
         // 3. Use cdm to generate a key request and follow the steps for the first matching condition from the following list:
         m_session->generateKeyRequest(request.mimeType, *request.initData);
     }
 }
 
 void MediaKeySession::update(Uint8Array* key, ExceptionCode& ec)
 {
     // From <http://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html#dom-addkey>:
     // The addKey(key) method must run the following steps:
-    // 1. If the first or second argument [sic] is null or an empty array, throw an INVALID_ACCESS_ERR.
+    // 1. If the first or second argument [sic] is null or an empty array, throw an InvalidAccessError.
     // NOTE: the reference to a "second argument" is a spec bug.
     if (!key || !key->length()) {
-        ec = INVALID_ACCESS_ERR;
+        ec = InvalidAccessError;
         return;
     }
 
     // 2. Schedule a task to handle the call, providing key.
     m_pendingKeys.append(key);
     m_addKeyTimer.startOneShot(0);
 }
 
 void MediaKeySession::addKeyTimerFired(Timer<MediaKeySession>*)
 {
@@ skipping 66 matching lines @@
 {
     return eventNames().interfaceForMediaKeySession;
 }
 
 ScriptExecutionContext* MediaKeySession::scriptExecutionContext() const
 {
     return ContextLifecycleObserver::scriptExecutionContext();
 }
 
 }