Adding supported checks for WebGL

tools/dom/scripts/generator.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 for systems to generate
 Dart APIs from the IDL database."""
 
 import copy
 import json
@@ skipping 687 matching lines @@
   "@SupportedBrowser(SupportedBrowser.CHROME, '25')",
   "@Experimental",
 ]
 
 _web_sql_annotations = [
   "@SupportedBrowser(SupportedBrowser.CHROME)",
   "@SupportedBrowser(SupportedBrowser.SAFARI)",
   "@Experimental",
 ]
 
+_webgl_annotations = [
+  "@SupportedBrowser(SupportedBrowser.CHROME)",
+  "@SupportedBrowser(SupportedBrowser.FIREFOX)",
+  "@Experimental",
+]
+
 # Annotations to be placed on generated members.
 # The table is indexed as:
 #   INTERFACE:     annotations to be added to the interface declaration
 #   INTERFACE.MEMBER: annotation to be added to the member declaration
 dart_annotations = {
   'ArrayBuffer': _all_but_ie9_annotations,
   'ArrayBufferView': _all_but_ie9_annotations,
   'Database': _web_sql_annotations,
   'DatabaseSync': _web_sql_annotations,
   'DOMApplicationCache': [
@@ skipping 76 matching lines @@
     "@SupportedBrowser(SupportedBrowser.CHROME, '25')",
     "@Experimental",
   ],
   'SpeechRecognition': _speech_recognition_annotations,
   'SpeechRecognitionAlternative': _speech_recognition_annotations,
   'SpeechRecognitionError': _speech_recognition_annotations,
   'SpeechRecognitionEvent': _speech_recognition_annotations,
   'SpeechRecognitionResult': _speech_recognition_annotations,
   'SQLTransaction': _web_sql_annotations,
   'SQLTransactionSync': _web_sql_annotations,
+  'WebGLRenderingContext': _webgl_annotations,
   'WebKitCSSMatrix': _webkit_experimental_annotations,
   'WebKitPoint': _webkit_experimental_annotations,
   'WebSocket': _all_but_ie9_annotations,
   'WorkerContext.indexedDB': _indexed_db_annotations,
   'WorkerContext.openDatabase': _web_sql_annotations,
   'WorkerContext.openDatabaseSync': _web_sql_annotations,
   'WorkerContext.webkitRequestFileSystem': _file_system_annotations,
   'WorkerContext.webkitRequestFileSystemSync': _file_system_annotations,
   'WorkerContext.webkitResolveLocalFileSystemSyncURL': _file_system_annotations,
   'WorkerContext.webkitResolveLocalFileSystemURL': _file_system_annotations,
@@ skipping 630 matching lines @@
                                   self)
 
     if type_data.clazz == 'SVGTearOff':
       dart_interface_name = self._renamer.RenameInterface(
           self._database.GetInterface(type_name))
       return SVGTearOffIDLTypeInfo(
           type_name, type_data, dart_interface_name, self)
 
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)