Remove OwnPtr from Blink.

third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
index cb416dca18088a6b66608b98352cce926530b206..5135071374a3caec22062a498cbe31b3ced9846b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
@@ -38,6 +38,7 @@
 #include "core/paint/PaintLayer.h"
 #include "core/style/ShadowList.h"
 #include "platform/LengthFunctions.h"
+#include "wtf/PtrUtil.h"
 
 namespace blink {
 
@@ -325,7 +326,7 @@ void LayoutBoxModelObject::invalidateStickyConstraints()
 void LayoutBoxModelObject::createLayer()
 {
     ASSERT(!m_layer);
-    m_layer = adoptPtr(new PaintLayer(this));
+    m_layer = wrapUnique(new PaintLayer(this));
     setHasLayer(true);
     m_layer->insertOnlyThisLayerAfterStyleChange();
 }