remove support for InputMethodOptions_Open_* which hasn't been used for a while and is now removed.

tools/metrics/actions/extract_actions.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Extract UserMetrics "actions" strings from the Chrome source.
 
 This program generates the list of known actions we expect to see in the
 user behavior logs.  It walks the Chrome source, looking for calls to
@@ skipping 143 matching lines @@
 
   # Actions for safe_browsing_blocking_page.cc.
   for interstitial in ('Phishing', 'Malware', 'Multiple'):
     for action in ('Show', 'Proceed', 'DontProceed', 'ForcedDontProceed'):
       actions.add('SBInterstitial%s%s' % (interstitial, action))
 
   # Actions for language_options_handler.cc (Chrome OS specific).
   for input_method_id in INPUT_METHOD_IDS:
     actions.add('LanguageOptions_DisableInputMethod_%s' % input_method_id)
     actions.add('LanguageOptions_EnableInputMethod_%s' % input_method_id)
-    actions.add('InputMethodOptions_Open_%s' % input_method_id)
   for language_code in LANGUAGE_CODES:
     actions.add('LanguageOptions_UiLanguageChange_%s' % language_code)
     actions.add('LanguageOptions_SpellCheckLanguageChange_%s' % language_code)
 
 def AddWebKitEditorActions(actions):
   """Add editor actions from editor_client_impl.cc.
 
   Arguments:
     actions: set of actions to add to.
   """
@@ skipping 647 matching lines @@
 
   with open(actions_xml_path, 'wb') as f:
     f.write(pretty)
   print ('Updated %s. Don\'t forget to add it to your changelist' %
          actions_xml_path)
   return 0
 
 
 if '__main__' == __name__:
   sys.exit(main(sys.argv))