Hiding getElement* methods on ShadowRoot.

lib/html/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.
 
 _html_interface_renames = {
     'DOMFormData': 'FormData',
     'DOMWindow': 'Window',
     'WebKitAnimation': 'Animation',
     'WebKitAnimationEvent': 'AnimationEvent',
@@ skipping 63 matching lines @@
   'EventTarget.removeEventListener',
   'MouseEvent.initMouseEvent',
   'Node.appendChild',
   'Node.attributes',
   'Node.childNodes',
   'Node.firstChild',
   'Node.lastChild',
   "Node.nodeType",
   'Node.removeChild',
   'Node.replaceChild',
+  'ShadowRoot.getElementById',
+  'ShadowRoot.getElementsByClassName',
+  'ShadowRoot.getElementsByTagName',
   'Storage.length',
   'Storage.clear',
   'Storage.getItem',
   'Storage.key',
   'Storage.removeItem',
   'Storage.setItem',
   'Window.getComputedStyle',
 ])
 
 # Members from the standard dom that exist in the dart:html library with
@@ skipping 208 matching lines @@
 
   def _FindMatch(self, interface, member, member_prefix, candidates):
     for interface in self._database.Hierarchy(interface):
       html_interface_name = self.RenameInterface(interface)
       member_name = html_interface_name + '.' + member
       if member_name in candidates:
         return member_name
       member_name = html_interface_name + '.' + member_prefix + member
       if member_name in candidates:
         return member_name