Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/dom/ContainerNode.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 10 matching lines @@
  *
  */
 
 #ifndef ContainerNode_h
 #define ContainerNode_h
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/CoreExport.h"
 #include "core/dom/Node.h"
 #include "core/html/CollectionType.h"
+#include "wtf/OwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class ClassCollection;
 class ExceptionState;
 class FloatPoint;
 class HTMLCollection;
 using StaticElementList = StaticNodeTypeList<Element>;
 class TagCollection;
@@ skipping 294 matching lines @@
 inline void getChildNodes(ContainerNode& node, NodeVector& nodes)
 {
     DCHECK(!nodes.size());
     for (Node* child = node.firstChild(); child; child = child->nextSibling())
         nodes.append(child);
 }
 
 } // namespace blink
 
 #endif // ContainerNode_h