Remove OwnPtr from Blink.

third_party/WebKit/Source/core/frame/VisualViewport.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 22 matching lines @@
 
 #include "core/CoreExport.h"
 #include "core/events/Event.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "public/platform/WebScrollbar.h"
 #include "public/platform/WebSize.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
+#include <memory>
 
 namespace blink {
 class WebLayerTreeView;
 class WebScrollbarLayer;
 }
 
 namespace blink {
 
 class FrameHost;
 class GraphicsContext;
@@ skipping 186 matching lines @@
 
     LocalFrame* mainFrame() const;
 
     FrameHost& frameHost() const
     {
         ASSERT(m_frameHost);
         return *m_frameHost;
     }
 
     Member<FrameHost> m_frameHost;
-    OwnPtr<GraphicsLayer> m_rootTransformLayer;
-    OwnPtr<GraphicsLayer> m_innerViewportContainerLayer;
-    OwnPtr<GraphicsLayer> m_overscrollElasticityLayer;
-    OwnPtr<GraphicsLayer> m_pageScaleLayer;
-    OwnPtr<GraphicsLayer> m_innerViewportScrollLayer;
-    OwnPtr<GraphicsLayer> m_overlayScrollbarHorizontal;
-    OwnPtr<GraphicsLayer> m_overlayScrollbarVertical;
-    OwnPtr<WebScrollbarLayer> m_webOverlayScrollbarHorizontal;
-    OwnPtr<WebScrollbarLayer> m_webOverlayScrollbarVertical;
+    std::unique_ptr<GraphicsLayer> m_rootTransformLayer;
+    std::unique_ptr<GraphicsLayer> m_innerViewportContainerLayer;
+    std::unique_ptr<GraphicsLayer> m_overscrollElasticityLayer;
+    std::unique_ptr<GraphicsLayer> m_pageScaleLayer;
+    std::unique_ptr<GraphicsLayer> m_innerViewportScrollLayer;
+    std::unique_ptr<GraphicsLayer> m_overlayScrollbarHorizontal;
+    std::unique_ptr<GraphicsLayer> m_overlayScrollbarVertical;
+    std::unique_ptr<WebScrollbarLayer> m_webOverlayScrollbarHorizontal;
+    std::unique_ptr<WebScrollbarLayer> m_webOverlayScrollbarVertical;
 
     // Offset of the visual viewport from the main frame's origin, in CSS pixels.
     FloatPoint m_offset;
     float m_scale;
     IntSize m_size;
     float m_topControlsAdjustment;
     float m_maxPageScale;
     bool m_trackPinchZoomStatsForPage;
 };
 
 } // namespace blink
 
 #endif // VisualViewport_h