Triage feature defines.

tools/dom/scripts/fremontcutbuilder.py

 #!/usr/bin/python
 # Copyright (c) 2011, 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 database
 import databasebuilder
 import idlparser
 import logging.config
 import os.path
 import sys
 
 FEATURE_DISABLED = [
     'ENABLE_BATTERY_STATUS',
-    # Triage.
     'ENABLE_CSS3_CONDITIONAL_RULES',
     'ENABLE_CSS_DEVICE_ADAPTATION',
-    'ENABLE_CUSTOM_ELEMENTS',
     'ENABLE_ENCRYPTED_MEDIA_V2',
-    'ENABLE_INSPECTOR',
-    'ENABLE_MEDIA_CAPTURE',
+    'ENABLE_INSPECTOR', # Internal DevTools API.
+    'ENABLE_MEDIA_CAPTURE', # Only enabled on Android.
     'ENABLE_MICRODATA',
+    'ENABLE_ORIENTATION_EVENTS', # Only enabled on Android.
+    'ENABLE_PROXIMITY_EVENTS',
+    'ENABLE_SPEECH_SYNTHESIS',
+    'ENABLE_XHR_TIMEOUT',
+    # To enable.
     'ENABLE_NAVIGATOR_CONTENT_UTILS',
-    'ENABLE_ORIENTATION_EVENTS',
-    'ENABLE_PROXIMITY_EVENTS',
     'ENABLE_RESOURCE_TIMING',
-    'ENABLE_SPEECH_SYNTHESIS',
     'ENABLE_USER_TIMING',
-    'ENABLE_VIDEO_TRACK ',
-    'ENABLE_XHR_TIMEOUT'
+    'ENABLE_VIDEO_TRACK ', # Sic! With the trailing space.

[Mads Ager (google), 2013/04/15 17:42:28]

Yikes!

[Anton Muhin, 2013/04/15 17:43:52]

That's actually a bug in our scripts, I have a fix in my queue.

 ]
 
 FEATURE_DEFINES = [
     'ENABLE_BLOB',
     'ENABLE_CALENDAR_PICKER',
     'ENABLE_CANVAS_PATH',
     'ENABLE_CANVAS_PROXY',
     'ENABLE_CSS_FILTERS',
     'ENABLE_CSS_REGIONS',
     'ENABLE_CSS_SHADERS',
@@ skipping 140 matching lines @@
       if ext == '.idl' and name not in ignored_idls:
         idl_files.append(file_name)
 
   os.path.walk(webcore_dir, visitor, webcore_dir)
 
   database_dir = os.path.join(current_dir, '..', 'database')
   return build_database(idl_files, database_dir, parallel=parallel)
 
 if __name__ == '__main__':
   sys.exit(main())