Make the constructor of a LayoutRect from an IntRect explicit.

Source/core/dom/Node.cpp

 /*
  * 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, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 593 matching lines @@
 
 LayoutBoxModelObject* Node::layoutBoxModelObject() const
 {
     LayoutObject* renderer = this->renderer();
     return renderer && renderer->isBoxModelObject() ? toLayoutBoxModelObject(renderer) : nullptr;
 }
 
 LayoutRect Node::boundingBox() const
 {
     if (renderer())
-        return renderer()->absoluteBoundingBoxRect();
+        return LayoutRect(renderer()->absoluteBoundingBoxRect());
     return LayoutRect();
 }
 
 bool Node::hasNonEmptyBoundingBox() const
 {
     // Before calling absoluteRects, check for the common case where the renderer
     // is non-empty, since this is a faster check and almost always returns true.
     LayoutBoxModelObject* box = layoutBoxModelObject();
     if (!box)
         return false;
@@ skipping 1833 matching lines @@
         node->showTreeForThis();
 }
 
 void showNodePath(const blink::Node* node)
 {
     if (node)
         node->showNodePathForThis();
 }
 
 #endif