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

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 381 matching lines @@
                              wrapPersistent(this)));
     return;
   }
   dispatchLoadEvent();
 }
 
 void LocalDOMWindow::documentWasClosed() {
   dispatchWindowLoadEvent();
   enqueuePageshowEvent(PageshowEventNotPersisted);
   if (m_pendingStateObject)
-    enqueuePopstateEvent(m_pendingStateObject.release());
+    enqueuePopstateEvent(std::move(m_pendingStateObject));
 }
 
 void LocalDOMWindow::enqueuePageshowEvent(PageshowEventPersistence persisted) {
   // FIXME: https://bugs.webkit.org/show_bug.cgi?id=36334 Pageshow event needs
   // to fire asynchronously.  As per spec pageshow must be triggered
   // asynchronously.  However to be compatible with other browsers blink fires
   // pageshow synchronously.
   dispatchEvent(
       PageTransitionEvent::create(EventTypeNames::pageshow, persisted),
       m_document.get());
@@ skipping 1221 matching lines @@
 
 LocalFrame* LocalDOMWindow::frame() const {
   // If the LocalDOMWindow still has a frame reference, that frame must point
   // back to this LocalDOMWindow: otherwise, it's easy to get into a situation
   // where script execution leaks between different LocalDOMWindows.
   SECURITY_DCHECK(!m_frame || m_frame->domWindow() == this);
   return m_frame;
 }
 
 }  // namespace blink