Use std::unique_ptr to signal ownership transfer in WebCompositorSupport

third_party/WebKit/Source/web/LinkHighlightImpl.cpp

 /*
  * Copyright (C) 2012 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:
  *
  * 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
@@ skipping 69 matching lines @@
       m_currentGraphicsLayer(0),
       m_isScrollingGraphicsLayer(false),
       m_geometryNeedsUpdate(false),
       m_isAnimating(false),
       m_startTime(monotonicallyIncreasingTime()) {
   DCHECK(m_node);
   DCHECK(owningWebViewImpl);
   WebCompositorSupport* compositorSupport =
       Platform::current()->compositorSupport();
   DCHECK(compositorSupport);
-  m_contentLayer = wrapUnique(compositorSupport->createContentLayer(this));
-  m_clipLayer = wrapUnique(compositorSupport->createLayer());
+  m_contentLayer = compositorSupport->createContentLayer(this);
+  m_clipLayer = compositorSupport->createLayer();
   m_clipLayer->setTransformOrigin(WebFloatPoint3D());
   m_clipLayer->addChild(m_contentLayer->layer());
 
   m_compositorPlayer = CompositorAnimationPlayer::create();
   DCHECK(m_compositorPlayer);
   m_compositorPlayer->setAnimationDelegate(this);
   if (m_owningWebViewImpl->linkHighlightsTimeline())
     m_owningWebViewImpl->linkHighlightsTimeline()->playerAttached(*this);
 
   CompositorElementId elementId = createCompositorElementId(
@@ skipping 341 matching lines @@
 
 WebLayer* LinkHighlightImpl::layer() {
   return clipLayer();
 }
 
 CompositorAnimationPlayer* LinkHighlightImpl::compositorPlayer() const {
   return m_compositorPlayer.get();
 }
 
 }  // namespace blink