Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/frame/PageScaleConstraintsSet.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef PageScaleConstraintsSet_h
 #define PageScaleConstraintsSet_h
 
 #include "core/CoreExport.h"
 #include "core/dom/ViewportDescription.h"
 #include "core/frame/PageScaleConstraints.h"
 #include "platform/Length.h"
 #include "platform/geometry/IntSize.h"
 #include "wtf/Allocator.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
+#include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 // This class harmonizes the viewport (particularly page scale) constraints from
 // the meta viewport tag and other sources.
 class CORE_EXPORT PageScaleConstraintsSet {
     USING_FAST_MALLOC(PageScaleConstraintsSet);
 public:
-    static std::unique_ptr<PageScaleConstraintsSet> create()
+    static PassOwnPtr<PageScaleConstraintsSet> create()
     {
-        return wrapUnique(new PageScaleConstraintsSet);
+        return adoptPtr(new PageScaleConstraintsSet);
     }
 
     void setDefaultConstraints(const PageScaleConstraints&);
     const PageScaleConstraints& defaultConstraints() const;
 
     // Settings defined in the website's viewport tag, if viewport tag support
     // is enabled.
     const PageScaleConstraints& pageDefinedConstraints() const { return m_pageDefinedConstraints; }
     void updatePageDefinedConstraints(const ViewportDescription&, Length legacyFallbackWidth);
     void adjustForAndroidWebViewQuirks(const ViewportDescription&, int layoutFallbackWidth, float deviceScaleFactor, bool supportTargetDensityDPI, bool wideViewportQuirkEnabled, bool useWideViewport, bool loadWithOverviewMode, bool nonUserScalableQuirkEnabled);
@@ skipping 41 matching lines @@
     int m_lastContentsWidth;
     IntSize m_icbSize;
 
     bool m_needsReset;
     bool m_constraintsDirty;
 };
 
 } // namespace blink
 
 #endif // PageScaleConstraintsSet_h