Reland: Remove "needkey" event and add its replacement, "encrypted".

Source/modules/encryptedmedia/MediaEncryptedEvent.cpp

 /*
  * Copyright (C) 2012 Google 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-#include "modules/encryptedmedia/MediaKeyNeededEvent.h"
-
-#include "wtf/Uint8Array.h"
+#include "modules/encryptedmedia/MediaEncryptedEvent.h"
 
 namespace blink {
 
-MediaKeyNeededEventInit::MediaKeyNeededEventInit()
+MediaEncryptedEventInit::MediaEncryptedEventInit()
 {
 }
 
-MediaKeyNeededEvent::MediaKeyNeededEvent()
+MediaEncryptedEvent::MediaEncryptedEvent()
 {
 }
 
-MediaKeyNeededEvent::MediaKeyNeededEvent(const AtomicString& type, const MediaKeyNeededEventInit& initializer)
+MediaEncryptedEvent::MediaEncryptedEvent(const AtomicString& type, const MediaEncryptedEventInit& initializer)
     : Event(type, initializer)
-    , m_contentType(initializer.contentType)
+    , m_initDataType(initializer.initDataType)
     , m_initData(initializer.initData)
 {
 }
 
-MediaKeyNeededEvent::~MediaKeyNeededEvent()
+MediaEncryptedEvent::~MediaEncryptedEvent()
 {
 }
 
-const AtomicString& MediaKeyNeededEvent::interfaceName() const
+const AtomicString& MediaEncryptedEvent::interfaceName() const
 {
-    return EventNames::MediaKeyNeededEvent;
+    return EventNames::MediaEncryptedEvent;
 }
 
-void MediaKeyNeededEvent::trace(Visitor* visitor)
+void MediaEncryptedEvent::trace(Visitor* visitor)
 {
     Event::trace(visitor);
 }
 
 } // namespace blink