Testing & supporting new HTMLTemplateElement

tools/dom/scripts/dartmetadata.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 shared functionality to provide Dart metadata for
 DOM APIs.
 """
 
 import copy
@@ skipping 153 matching lines @@
                 "|Framebuffer|Renderbuffer|Texture')",
       "@Returns('Null|num|String|bool|=List|Float32List|Int32List|Uint32List"
                 "|Framebuffer|Renderbuffer|Texture')",
     ],
 
     'XMLHttpRequest.response': [
       "@Creates('ByteBuffer|Blob|Document|=Object|=List|String|num')",
     ],
 }, dart2jsOnly=True)
 
+_blink_experimental_annotations = [
+  "@SupportedBrowser(SupportedBrowser.CHROME)",
+  "@Experimental",
+]
+
 _indexed_db_annotations = [
   "@SupportedBrowser(SupportedBrowser.CHROME)",
   "@SupportedBrowser(SupportedBrowser.FIREFOX, '15')",
   "@SupportedBrowser(SupportedBrowser.IE, '10')",
   "@Experimental",
 ]
 
 _file_system_annotations = [
   "@SupportedBrowser(SupportedBrowser.CHROME)",
   "@Experimental",
@@ skipping 109 matching lines @@
   'HTMLKeygenElement': _webkit_experimental_annotations,
   'HTMLMeterElement': _no_ie_annotations,
   'HTMLObjectElement': [
     "@SupportedBrowser(SupportedBrowser.CHROME)",
     "@SupportedBrowser(SupportedBrowser.IE)",
     "@SupportedBrowser(SupportedBrowser.SAFARI)",
   ],
   'HTMLOutputElement': _no_ie_annotations,
   'HTMLProgressElement': _all_but_ie9_annotations,
   'HTMLShadowElement': _shadow_dom_annotations,
+  'HTMLTemplateElement': _blink_experimental_annotations,
   'HTMLTrackElement': [
     "@SupportedBrowser(SupportedBrowser.CHROME)",
     "@SupportedBrowser(SupportedBrowser.IE, '10')",
     "@SupportedBrowser(SupportedBrowser.SAFARI)",
   ],
   'IDBFactory': _indexed_db_annotations,
   'IDBDatabase': _indexed_db_annotations,
   'LocalMediaStream': _rtc_annotations,
   'MediaStream': _rtc_annotations,
   'MediaStreamEvent': _rtc_annotations,
@@ skipping 250 matching lines @@
       return
     elif support_level == 'deprecated':
       return '@Deprecated'
     else:
       _logger.warn('Unknown support_level - %s:%s' % (interface.id, member_id))
 
   def Flush(self):
     json_file = open(self._api_status_path, 'w+')
     json.dump(self._types, json_file, indent=2, separators=(',', ': '), sort_keys=True)
     json_file.close()