Fixing up a number of go.sh warnings

tools/dom/scripts/htmleventgenerator.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.
 
 """This module provides functionality to generate dart:html event classes."""
 
 import logging
 import monitored
 from generator import GetAnnotationsAndComments, FormatAnnotationsAndComments
@@ skipping 143 matching lines @@
   'IDBRequest.success': ('success', 'Event'),
   'IDBTransaction.complete': ('complete', 'Event'),
   'MediaStream.addtrack': ('addTrack', 'Event'),
   'MediaStream.removetrack': ('removeTrack', 'Event'),
   'MediaStreamTrack.mute': ('mute', 'Event'),
   'MediaStreamTrack.unmute': ('unmute', 'Event'),
   'Notification.click': ('click', 'Event'),
   'Notification.close': ('close', 'Event'),
   'Notification.display': ('display', 'Event'),
   'Notification.show': ('show', 'Event'),
+  'RTCDTMFSender.tonechange': ('toneChange', 'RtcDtmfToneChangeEvent'),
   'RTCDataChannel.close': ('close', 'Event'),
   'RTCDataChannel.open': ('open', 'Event'),
   'RTCPeerConnection.addstream': ('addStream', 'MediaStreamEvent'),
   'RTCPeerConnection.datachannel': ('dataChannel', 'RtcDataChannelEvent'),
   'RTCPeerConnection.icecandidate': ('iceCandidate', 'RtcIceCandidateEvent'),
-  'RTCPeerConnection.icechange': ('iceChange', 'Event'),
-  'RTCPeerConnection.gatheringchange': ('gatheringChange', 'Event'),
+  'RTCPeerConnection.iceconnectionstatechange': ('iceConnectionStateChange', 'Event'),
   'RTCPeerConnection.negotiationneeded': ('negotiationNeeded', 'Event'),
   'RTCPeerConnection.removestream': ('removeStream', 'MediaStreamEvent'),
-  'RTCPeerConnection.statechange': ('stateChange', 'Event'),
+  'RTCPeerConnection.signalingstatechange': ('signalingStateChange', 'Event'),
   'SharedWorkerContext.connect': ('connect', 'Event'),
   'SpeechRecognition.audioend': ('audioEnd', 'Event'),
   'SpeechRecognition.audiostart': ('audioStart', 'Event'),
   'SpeechRecognition.end': ('end', 'Event'),
   'SpeechRecognition.error': ('error', 'SpeechRecognitionError'),
   'SpeechRecognition.nomatch': ('noMatch', 'SpeechRecognitionEvent'),
   'SpeechRecognition.result': ('result', 'SpeechRecognitionEvent'),
   'SpeechRecognition.soundend': ('soundEnd', 'Event'),
   'SpeechRecognition.soundstart': ('soundStart', 'Event'),
   'SpeechRecognition.speechend': ('speechEnd', 'Event'),
@@ skipping 168 matching lines @@
     """
     key = '%s.%s' % (html_interface_name, dom_event_name)
     if key in _html_event_types:
       return _html_event_types[key]
     key = '*.%s' % dom_event_name
     if key in _html_event_types:
       return _html_event_types[key]
     _logger.warn('Cannot resolve event type for %s.%s' %
         (html_interface_name, dom_event_name))
     return None