Remove webkit prefix and annotate with experimental tag.

tools/dom/scripts/generator.py

Index: tools/dom/scripts/generator.py
diff --git a/tools/dom/scripts/generator.py b/tools/dom/scripts/generator.py
index 408147ead6b1d226acbe283e8c684ff5b82f794c..0bf247207c4c2e8bb0c8ce28f406a27ba6e9c905 100644
--- a/tools/dom/scripts/generator.py
+++ b/tools/dom/scripts/generator.py
@@ -10,7 +10,7 @@ import copy
 import json
 import os
 import re
-from htmlrenamer import html_interface_renames
+from htmlrenamer import html_interface_renames, renamed_html_members
 
 # Set up json file for retrieving comments.
 _current_dir = os.path.dirname(__file__)
@@ -892,6 +892,10 @@ def FindCommonAnnotations(library_name, interface_name, member_name=None):
   if (dart_annotations.get(key) != None):
     annotations.extend(dart_annotations.get(key))
 
+  if (member_name and member_name.startswith('webkit') and
+      key not in renamed_html_members):
+    annotations.extend(_webkit_experimental_annotations)
+
   return annotations
 
 def FindDart2JSAnnotationsAndComments(idl_type, library_name, interface_name,