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

third_party/WebKit/Source/core/layout/LayoutBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1980 matching lines @@
     newDisplay = EDisplay::Flex;
   } else {
     newBox = LayoutBlockFlow::createAnonymous(&parent->document());
     newDisplay = EDisplay::Block;
   }
 
   RefPtr<ComputedStyle> newStyle =
       ComputedStyle::createAnonymousStyleWithDisplay(parent->styleRef(),
                                                      newDisplay);
   parent->updateAnonymousChildStyle(*newBox, *newStyle);
-  newBox->setStyle(newStyle.release());
+  newBox->setStyle(std::move(newStyle));
   return newBox;
 }
 
 bool LayoutBlock::recalcNormalFlowChildOverflowIfNeeded(
     LayoutObject* layoutObject) {
   if (layoutObject->isOutOfFlowPositioned() ||
       !layoutObject->needsOverflowRecalcAfterStyleChange())
     return false;
 
   ASSERT(layoutObject->isLayoutBlock());
@@ skipping 188 matching lines @@
   }
 
   return availableHeight;
 }
 
 bool LayoutBlock::hasDefiniteLogicalHeight() const {
   return availableLogicalHeightForPercentageComputation() != LayoutUnit(-1);
 }
 
 }  // namespace blink