Move the dom directory from web-platform-tests/ to wpt/.

third_party/WebKit/LayoutTests/imported/wpt/dom/common.js

 "use strict";
 // Written by Aryeh Gregor <ayg@aryeh.name>
 
 // TODO: iframes, contenteditable/designMode
 
 // Everything is done in functions in this test harness, so we have to declare
 // all the variables before use to make sure they can be reused.
 var testDiv, paras, detachedDiv, detachedPara1, detachedPara2,
     foreignDoc, foreignPara1, foreignPara2, xmlDoc, xmlElement,
     detachedXmlElement, detachedTextNode, foreignTextNode,
@@ skipping 1063 matching lines @@
  */
 function rangeFromEndpoints(endpoints) {
     // If we just use document instead of the ownerDocument of endpoints[0],
     // WebKit will throw on setStart/setEnd.  This is a WebKit bug, but it's in
     // range, not selection, so we don't want to fail anything for it.
     var range = ownerDocument(endpoints[0]).createRange();
     range.setStart(endpoints[0], endpoints[1]);
     range.setEnd(endpoints[2], endpoints[3]);
     return range;
 }