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

third_party/WebKit/Source/core/svg/SVGFEDiffuseLightingElement.cpp

 /*
  * Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 142 matching lines @@
   ASSERT(layoutObject->style());
   Color color = layoutObject->style()->svgStyle().lightingColor();
 
   const SVGFELightElement* lightNode =
       SVGFELightElement::findLightElement(*this);
   RefPtr<LightSource> lightSource =
       lightNode ? lightNode->lightSource(filter) : nullptr;
 
   FilterEffect* effect = FEDiffuseLighting::create(
       filter, color, m_surfaceScale->currentValue()->value(),
-      m_diffuseConstant->currentValue()->value(), lightSource.release());
+      m_diffuseConstant->currentValue()->value(), std::move(lightSource));
   effect->inputEffects().push_back(input1);
   return effect;
 }
 
 }  // namespace blink