Make Range constructable

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
  * modify it under the terms of the GNU Library General Public
@@ skipping 87 matching lines @@
 PassRefPtr<Range> Range::create(PassRefPtr<Document> ownerDocument, PassRefPtr<Node> startContainer, int startOffset, PassRefPtr<Node> endContainer, int endOffset)
 {
     return adoptRef(new Range(ownerDocument, startContainer, startOffset, endContainer, endOffset));
 }
 
 PassRefPtr<Range> Range::create(PassRefPtr<Document> ownerDocument, const Position& start, const Position& end)
 {
     return adoptRef(new Range(ownerDocument, start.containerNode(), start.computeOffsetInContainerNode(), end.containerNode(), end.computeOffsetInContainerNode()));
 }
 
+PassRefPtr<Range> Range::create(ScriptExecutionContext* context)
+{
+    return adoptRef(new Range(toDocument(context)));
+}
+
 Range::~Range()
 {
     // Always detach (even if we've already detached) to fix https://bugs.webkit.org/show_bug.cgi?id=26044
     m_ownerDocument->detachRange(this);
 
 #ifndef NDEBUG
     rangeCounter.decrement();
 #endif
 }
 
@@ skipping 1849 matching lines @@
 
 void showTree(const WebCore::Range* range)
 {
     if (range && range->boundaryPointsValid()) {
         range->startContainer()->showTreeAndMark(range->startContainer(), "S", range->endContainer(), "E");
         fprintf(stderr, "start offset: %d, end offset: %d\n", range->startOffset(), range->endOffset());
     }
 }
 
 #endif