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

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

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 2705 matching lines @@
       LayoutPartItem layoutItem = m_frame->ownerLayoutItem();
       if (!layoutItem.isNull())
         cornerStyle = layoutItem.getUncachedPseudoStyle(
             PseudoStyleRequest(PseudoIdScrollbarCorner), layoutItem.style());
     }
   }
 
   if (cornerStyle) {
     if (!m_scrollCorner)
       m_scrollCorner = LayoutScrollbarPart::createAnonymous(doc, this);
-    m_scrollCorner->setStyleWithWritingModeOfParent(cornerStyle.release());
+    m_scrollCorner->setStyleWithWritingModeOfParent(std::move(cornerStyle));
     setScrollCornerNeedsPaintInvalidation();
   } else if (m_scrollCorner) {
     m_scrollCorner->destroy();
     m_scrollCorner = nullptr;
   }
 }
 
 Color FrameView::documentBackgroundColor() const {
   // The LayoutView's background color is set in
   // Document::inheritHtmlAndBodyElementStyles.  Blend this with the base
@@ skipping 2165 matching lines @@
        reason < MainThreadScrollingReason::kMainThreadScrollingReasonCount;
        ++reason) {
     if (m_mainThreadScrollingReasonsCounter[reason] > 0) {
       reasons |= 1 << reason;
     }
   }
   return reasons;
 }
 
 }  // namespace blink