Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/css/resolver/StyleResolverState.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. 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
  * 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 18 matching lines @@
 #include "core/css/CSSToLengthConversionData.h"
 #include "core/css/resolver/CSSToStyleMap.h"
 #include "core/css/resolver/ElementResolveContext.h"
 #include "core/css/resolver/ElementStyleResources.h"
 #include "core/css/resolver/FontBuilder.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/style/CachedUAStyle.h"
 #include "core/style/ComputedStyle.h"
 #include "core/style/StyleInheritedData.h"
-#include <memory>
 
 namespace blink {
 
 class FontDescription;
 
 class CORE_EXPORT StyleResolverState {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(StyleResolverState);
 public:
     StyleResolverState(Document&, const ElementResolveContext&, const ComputedStyle* parentStyle);
@@ skipping 124 matching lines @@
     RefPtr<ComputedStyle> m_parentStyle;
 
     CSSAnimationUpdate m_animationUpdate;
 
     bool m_applyPropertyToRegularStyle;
     bool m_applyPropertyToVisitedLinkStyle;
     bool m_hasDirAutoAttribute;
 
     FontBuilder m_fontBuilder;
 
-    std::unique_ptr<CachedUAStyle> m_cachedUAStyle;
+    OwnPtr<CachedUAStyle> m_cachedUAStyle;
 
     ElementStyleResources m_elementStyleResources;
 
     HeapHashMap<String, Member<StylePropertySet>> m_customPropertySetsForApplyAtRule;
 };
 
 } // namespace blink
 
 #endif // StyleResolverState_h