MediaRecorder: update to spec (1/3)

third_party/WebKit/Source/modules/mediarecorder/BlobEvent.cpp

 // Copyright 2015 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.
 
 #include "config.h"
 
 #include "modules/mediarecorder/BlobEvent.h"
 
 #include "modules/mediarecorder/BlobEventInit.h"
 
@@ skipping 23 matching lines @@
 }
 
 DEFINE_TRACE(BlobEvent)
 {
     visitor->trace(m_blob);
     Event::trace(visitor);
 }
 
 BlobEvent::BlobEvent(const AtomicString& type, const BlobEventInit& initializer)
     : Event(type, initializer)
+    , m_blob(initializer.data())
 {
-    if (initializer.hasBlob())
-        m_blob = initializer.blob();
 }
 
 BlobEvent::BlobEvent(const AtomicString& type, Blob* blob)
     : Event(type, false /* canBubble */, false /* cancelable */)
     , m_blob(blob)
 {
 }
 
 } // namespace blink