Make includeAncestors match a separate method.

tools/dom/scripts/htmlrenamer.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 import logging
 import monitored
 import re
 
 typed_array_renames = {
     'ArrayBuffer': 'ByteBuffer',
@@ skipping 308 matching lines @@
     'Window.clearTimeout': '_clearTimeout',
     'Window.clearInterval': '_clearInterval',
     'Window.setTimeout': '_setTimeout',
     'Window.setInterval': '_setInterval',
     'Window.webkitConvertPointFromNodeToPage': '_convertPointFromNodeToPage',
     'Window.webkitConvertPointFromPageToNode': '_convertPointFromPageToNode',
     'Window.webkitNotifications': 'notifications',
     'Window.webkitRequestFileSystem': '_requestFileSystem',
     'Window.webkitResolveLocalFileSystemURL': 'resolveLocalFileSystemUrl',
     'Element.querySelector': 'query',
-    'Element.webkitMatchesSelector' : '_matches',
+    'Element.webkitMatchesSelector' : 'matches',
     'MutationObserver.observe': '_observe',
     'Navigator.webkitGetUserMedia': '_getUserMedia',
     'Node.appendChild': 'append',
     'Node.cloneNode': 'clone',
     'Node.nextSibling': 'nextNode',
     'Node.ownerDocument': 'document',
     'Node.parentElement': 'parent',
     'Node.previousSibling': 'previousNode',
     'Node.textContent': 'text',
     'RTCPeerConnection.createAnswer': '_createAnswer',
@@ skipping 521 matching lines @@
 
     # We're looking for a sequence of letters which start with capital letter
     # then a series of caps and finishes with either the end of the string or
     # a capital letter.
     # The [0-9] check is for names such as 2D or 3D
     # The following test cases should match as:
     #   WebKitCSSFilterValue: WebKit(C)(SS)(F)ilterValue
     #   XPathNSResolver: (X)()(P)ath(N)(S)(R)esolver (no change)
     #   IFrameElement: (I)()(F)rameElement (no change)
     return re.sub(r'([A-Z])([A-Z]{2,})([A-Z]|$)', toLower, name)