Replaced PassRefPtr copies with moves.

third_party/WebKit/Source/core/dom/ElementRareData.h

 /*
  * Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Smith <catfish.man@gmail.com>
  *
  * 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,
@@ skipping 84 matching lines @@
     ComputedStyle* computedStyle() const
     {
         DCHECK(!(layoutObject() && m_computedStyle));
         if (layoutObject())
             return layoutObject()->mutableStyle();
         return m_computedStyle.get();
     }
     void setComputedStyle(PassRefPtr<ComputedStyle> computedStyle)
     {
         if (layoutObject())
-            layoutObject()->setStyleInternal(computedStyle);
+            layoutObject()->setStyleInternal(std::move(computedStyle));
         else
             m_computedStyle = computedStyle;
     }
     void clearComputedStyleIfNoLayoutObject()
     {
         DCHECK(!(layoutObject() && m_computedStyle));
         m_computedStyle = nullptr;
     }
 
     ClassList* classList() const { return m_classList.get(); }
@@ skipping 148 matching lines @@
 inline CompositorProxiedPropertySet& ElementRareData::ensureCompositorProxiedPropertySet()
 {
     if (!m_proxiedProperties)
         m_proxiedProperties = CompositorProxiedPropertySet::create();
     return *m_proxiedProperties;
 }
 
 } // namespace blink
 
 #endif // ElementRareData_h