Sync the Touch-related interfaces with the two specs

Source/core/dom/Document.idl

 /*
  * Copyright (C) 2006, 2007, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006, 2007 Samuel Weinig <sam@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 147 matching lines @@
     Selection? getSelection();
 
     // Pointer Lock
     // https://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html#extensions-to-the-document-interface
     attribute EventHandler onpointerlockchange;
     attribute EventHandler onpointerlockerror;
     [MeasureAs=DocumentPointerLockElement] readonly attribute Element? pointerLockElement;
     [MeasureAs=DocumentExitPointerLock] void exitPointerLock();
 
     // Touch Events
-    // http://www.w3.org/TR/touch-events/#extensions-to-the-document-interface
+    // http://rawgit.com/w3c/touch-events/v1-errata/touchevents.html#extensions-to-the-document-interface
     // FIXME: The arguments should not be optional.
     // FIXME: The webkit-prefixed arguments are not in the spec.

[Rick Byers, 2015/03/06 13:56:55]

If you want, you can remove the webkit prefixes on the argument names here since
they're in the TE extensions note and we're shipping them unprefixed (although
we still aren't shipping Touch.rotationAngle unprefixed, there's no reason not
to anymore).

[philipj_slow, 2015/03/06 15:33:58]

Actually the extension spec doesn't mention these new createTouch arguments,
maybe it should?

     [RuntimeEnabled=Touch] Touch createTouch([Default=Undefined] optional Window window,
                                              [Default=Undefined] optional EventTarget target,
                                              [Default=Undefined] optional long identifier,
                                              [Default=Undefined] optional unrestricted double pageX,
                                              [Default=Undefined] optional unrestricted double pageY,
                                              [Default=Undefined] optional unrestricted double screenX,
                                              [Default=Undefined] optional unrestricted double screenY,
                                              [Default=Undefined] optional unrestricted double webkitRadiusX,
                                              [Default=Undefined] optional unrestricted double webkitRadiusY,
                                              [Default=Undefined] optional unrestricted float webkitRotationAngle,
@@ skipping 43 matching lines @@
     attribute EventHandler onsearch;
     [RuntimeEnabled=ExperimentalContentSecurityPolicyFeatures] attribute EventHandler onsecuritypolicyviolation;
     attribute EventHandler onselectionchange;
     attribute EventHandler onselectstart;
     attribute EventHandler onwheel;
 };
 
 Document implements GlobalEventHandlers;
 Document implements ParentNode;
 Document implements NonElementParentNode;