Use EphemeralRange instead of Range in Range::isNodeFullyContainded

third_party/WebKit/Source/core/dom/Range.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Gunnstein Lye (gunnstein@netcom.no)
  * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
  * (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 266 matching lines @@
 }
 
 void Range::collapse(bool toStart) {
   RangeUpdateScope scope(this);
   if (toStart)
     m_end = m_start;
   else
     m_start = m_end;
 }
 
-bool Range::isNodeFullyContained(Node& node) const {
-  ContainerNode* parentNode = node.parentNode();
-  unsigned nodeIndex = node.nodeIndex();
-  return isPointInRange(
-             parentNode, nodeIndex,
-             IGNORE_EXCEPTION_FOR_TESTING)  // starts in the middle of this
-                                            // range, or on the boundary points.
-         && isPointInRange(
-                parentNode, nodeIndex + 1,
-                IGNORE_EXCEPTION_FOR_TESTING);  // ends in the middle of this
-                                                // range, or on the boundary
-                                                // points.
-}
-
 bool Range::hasSameRoot(const Node& node) const {
   if (node.document() != m_ownerDocument)
     return false;
   // commonAncestorContainer() is O(depth). We should avoid to call it in common
   // cases.
   if (node.isInTreeScope() && m_start.container()->isInTreeScope() &&
       &node.treeScope() == &m_start.container()->treeScope())
     return true;
   return node.commonAncestor(*m_start.container(), NodeTraversal::parent);
 }
@@ skipping 1514 matching lines @@
                      .data()
               << "start offset: " << range->startOffset()
               << ", end offset: " << range->endOffset();
   } else {
     LOG(INFO) << "Cannot show tree if range is null, or if boundary points are "
                  "invalid.";
   }
 }
 
 #endif