Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp

 // Copyright 2015 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.
 
 #include "core/paint/PaintPropertyTreeBuilder.h"
 
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/svg/LayoutSVGRoot.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintLayer.h"
 #include "platform/transforms/TransformationMatrix.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
 
 namespace blink {
 
 void PaintPropertyTreeBuilder::buildTreeRootNodes(FrameView& rootFrame, PaintPropertyTreeBuilderContext& context)
 {
     // Only create extra root clip and transform nodes when RLS is enabled, because the main frame
     // unconditionally create frame translation / clip nodes otherwise.
     if (rootFrame.frame().settings() && rootFrame.frame().settings()->rootLayerScrolls()) {
         transformRoot = TransformPaintPropertyNode::create(TransformationMatrix(), FloatPoint3D(), nullptr);
         context.currentTransform = context.transformForAbsolutePosition = context.transformForFixedPosition = transformRoot.get();
@@ skipping 131 matching lines @@
     object.getMutableForPainting().ensureObjectPaintProperties().setCssClip(clipNode.release());
 }
 
 void PaintPropertyTreeBuilder::updateLocalBorderBoxContext(const LayoutObject& object, const PaintPropertyTreeBuilderContext& context)
 {
     // Note: Currently only layer painter makes use of the pre-computed context.
     // This condition may be loosened with no adverse effects beside memory use.
     if (!object.hasLayer())
         return;
 
-    std::unique_ptr<ObjectPaintProperties::LocalBorderBoxProperties> borderBoxContext =
-        wrapUnique(new ObjectPaintProperties::LocalBorderBoxProperties);
+    OwnPtr<ObjectPaintProperties::LocalBorderBoxProperties> borderBoxContext =
+        adoptPtr(new ObjectPaintProperties::LocalBorderBoxProperties);
     borderBoxContext->paintOffset = context.paintOffset;
     borderBoxContext->transform = context.currentTransform;
     borderBoxContext->clip = context.currentClip;
     borderBoxContext->effect = context.currentEffect;
     object.getMutableForPainting().ensureObjectPaintProperties().setLocalBorderBoxProperties(std::move(borderBoxContext));
 }
 
 // TODO(trchen): Remove this once we bake the paint offset into frameRect.
 void PaintPropertyTreeBuilder::updateScrollbarPaintOffset(const LayoutObject& object, const PaintPropertyTreeBuilderContext& context)
 {
@@ skipping 218 matching lines @@
     updateOverflowClip(object, context);
     // TODO(trchen): Insert flattening transform here, as specified by
     // http://www.w3.org/TR/css3-transforms/#transform-style-property
     updatePerspective(object, context);
     updateSvgLocalToBorderBoxTransform(object, context);
     updateScrollTranslation(object, context);
     updateOutOfFlowContext(object, context);
 }
 
 } // namespace blink