Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.h

 /*
  * 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
  * 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef SVGResourcesCache_h
 #define SVGResourcesCache_h
 
 #include "core/style/StyleDifference.h"
 #include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/Noncopyable.h"
-#include <memory>
+#include "wtf/OwnPtr.h"
 
 namespace blink {
 
 class LayoutObject;
 class ComputedStyle;
 class LayoutSVGResourceContainer;
 class SVGResources;
 
 class SVGResourcesCache {
     WTF_MAKE_NONCOPYABLE(SVGResourcesCache); USING_FAST_MALLOC(SVGResourcesCache);
@@ skipping 15 matching lines @@
     // Called from all SVG layoutObjects layout() methods.
     static void clientLayoutChanged(LayoutObject*);
 
     // Called from all SVG layoutObjects styleDidChange() methods.
     static void clientStyleChanged(LayoutObject*, StyleDifference, const ComputedStyle& newStyle);
 
 private:
     void addResourcesFromLayoutObject(LayoutObject*, const ComputedStyle&);
     void removeResourcesFromLayoutObject(LayoutObject*);
 
-    typedef HashMap<const LayoutObject*, std::unique_ptr<SVGResources>> CacheMap;
+    typedef HashMap<const LayoutObject*, OwnPtr<SVGResources>> CacheMap;
     CacheMap m_cache;
 };
 
 } // namespace blink
 
 #endif