Replaced RefPtr::release with std::move in Source/core.

third_party/WebKit/Source/core/dom/MessagePort.cpp

 /*
  * Copyright (C) 2008 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 200 matching lines @@
       break;
     }
 
     RefPtr<SerializedScriptValue> message;
     std::unique_ptr<MessagePortChannelArray> channels;
     if (!tryGetMessage(message, channels))
       break;
 
     MessagePortArray* ports =
         MessagePort::entanglePorts(*getExecutionContext(), std::move(channels));
-    Event* evt = MessageEvent::create(ports, message.release());
+    Event* evt = MessageEvent::create(ports, std::move(message));
 
     dispatchEvent(evt);
   }
 }
 
 bool MessagePort::hasPendingActivity() const {
   // The spec says that entangled message ports should always be treated as if
   // they have a strong reference.
   // We'll also stipulate that the queue needs to be open (if the app drops its
   // reference to the port before start()-ing it, then it's not really entangled
@@ skipping 56 matching lines @@
   }
   return portArray;
 }
 
 DEFINE_TRACE(MessagePort) {
   ContextLifecycleObserver::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink