Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/layout/ImageQualityController.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 ImageQualityController_h
 #define ImageQualityController_h
 
 #include "base/gtest_prod_util.h"
 #include "core/CoreExport.h"
 #include "platform/Timer.h"
 #include "platform/geometry/LayoutSize.h"
 #include "platform/graphics/Image.h"
 #include "wtf/HashMap.h"
-#include <memory>
 
 namespace blink {
 
 class LayoutObject;
 
 typedef HashMap<const void*, LayoutSize> LayerSizeMap;
 
 struct ObjectResizeInfo {
     LayerSizeMap layerSizeMap;
     bool isResizing;
@@ skipping 26 matching lines @@
     void objectDestroyed(const LayoutObject&);
     bool isEmpty() { return m_objectLayerSizeMap.isEmpty(); }
 
     void highQualityRepaintTimerFired(Timer<ImageQualityController>*);
     void restartTimer(double lastFrameTimeMonotonic);
 
     // Only for use in testing.
     void setTimer(Timer<ImageQualityController>*);
 
     ObjectLayerSizeMap m_objectLayerSizeMap;
-    std::unique_ptr<Timer<ImageQualityController>> m_timer;
+    OwnPtr<Timer<ImageQualityController>> m_timer;
     double m_frameTimeWhenTimerStarted;
 
     // For calling set().
     FRIEND_TEST_ALL_PREFIXES(LayoutPartTest, DestroyUpdatesImageQualityController);
 
     // For calling setTimer(),
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, LowQualityFilterForResizingImage);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, MediumQualityFilterForNotAnimatedWhileAnotherAnimates);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, DontKickTheAnimationTimerWhenPaintingAtTheSameSize);
     FRIEND_TEST_ALL_PREFIXES(ImageQualityControllerTest, DontRestartTimerUnlessAdvanced);
 };
 
 } // namespace blink
 
 #endif