Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/geometry/TransformState.h

 /*
  * Copyright (C) 2011 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #ifndef TransformState_h
 #define TransformState_h
 
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/FloatQuad.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/geometry/LayoutSize.h"
 #include "platform/transforms/AffineTransform.h"
 #include "platform/transforms/TransformationMatrix.h"
 #include "wtf/Allocator.h"
-#include <memory>
+#include "wtf/OwnPtr.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT TransformState {
     STACK_ALLOCATED();
 public:
     enum TransformDirection { ApplyTransformDirection, UnapplyInverseTransformDirection };
     enum TransformAccumulation { FlattenTransform, AccumulateTransform };
 
     TransformState(TransformDirection mappingDirection, const FloatPoint& p, const FloatQuad& quad)
@@ skipping 79 matching lines @@
 private:
     void translateTransform(const LayoutSize&);
     void translateMappedCoordinates(const LayoutSize&);
     void flattenWithTransform(const TransformationMatrix&, bool* wasClamped);
     void applyAccumulatedOffset();
 
     FloatPoint m_lastPlanarPoint;
     FloatQuad m_lastPlanarQuad;
 
     // We only allocate the transform if we need to
-    std::unique_ptr<TransformationMatrix> m_accumulatedTransform;
+    OwnPtr<TransformationMatrix> m_accumulatedTransform;
     LayoutSize m_accumulatedOffset;
     bool m_accumulatingTransform;
     bool m_forceAccumulatingTransform;
     bool m_mapPoint, m_mapQuad;
     TransformDirection m_direction;
 };
 
 } // namespace blink
 
 #endif // TransformState_h