Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/graphics/paint/PaintController.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintController_h
 #define PaintController_h
 
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/LayoutPoint.h"
 #include "platform/graphics/ContiguousContainer.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/graphics/paint/DisplayItemList.h"
 #include "platform/graphics/paint/PaintArtifact.h"
 #include "platform/graphics/paint/PaintChunk.h"
 #include "platform/graphics/paint/PaintChunker.h"
 #include "platform/graphics/paint/Transform3DDisplayItem.h"
 #include "wtf/Alignment.h"
 #include "wtf/Assertions.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
-#include "wtf/PtrUtil.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
-#include <memory>
 #include <utility>
 
 class SkPicture;
 
 namespace blink {
 
 class GraphicsContext;
 
 static const size_t kInitialDisplayItemListCapacityBytes = 512;
 
 // Responsible for processing display items as they are produced, and producing
 // a final paint artifact when complete. This class includes logic for caching,
 // cache invalidation, and merging.
 class PLATFORM_EXPORT PaintController {
     WTF_MAKE_NONCOPYABLE(PaintController);
     USING_FAST_MALLOC(PaintController);
 public:
-    static std::unique_ptr<PaintController> create()
+    static PassOwnPtr<PaintController> create()
     {
-        return wrapUnique(new PaintController());
+        return adoptPtr(new PaintController());
     }
 
     ~PaintController()
     {
         // New display items should be committed before PaintController is destructed.
         DCHECK(m_newDisplayItemList.isEmpty());
 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
         DisplayItemClient::endShouldKeepAliveAllClients(this);
 #endif
     }
@@ skipping 164 matching lines @@
 
 #if CHECK_DISPLAY_ITEM_CLIENT_ALIVENESS
     // A stack recording subsequence clients that are currently painting.
     Vector<const DisplayItemClient*> m_currentSubsequenceClients;
 #endif
 };
 
 } // namespace blink
 
 #endif // PaintController_h