[Editing] Store |CommandSource| in |CompositeEditCommand|

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 4908 matching lines @@
 }
 
 // Support for Javascript execCommand, and related methods
 
 static Editor::Command command(Document* document, const String& commandName) {
   LocalFrame* frame = document->frame();
   if (!frame || frame->document() != document)
     return Editor::Command();
 
   document->updateStyleAndLayoutTree();
-  return frame->editor().createCommand(commandName, CommandFromDOM);
+  return frame->editor().createCommandFromDOM(commandName);
 }
 
 bool Document::execCommand(const String& commandName,
                            bool,
                            const String& value,
                            ExceptionState& exceptionState) {
   if (!isHTMLDocument() && !isXHTMLDocument()) {
     exceptionState.throwDOMException(
         InvalidStateError, "execCommand is only supported on HTML documents.");
     return false;
@@ skipping 1603 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif