Changing metadata lookup to always use interface.id

tools/dom/scripts/systemnative.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 the systems to generate
 native binding from the IDL database."""
 
 import emitter
 import os
@@ skipping 808 matching lines @@
         '        if (returnValue)\n'
         '            Dart_SetReturnValue(args, returnValue);\n',
         TO_DART_CONVERSION=to_dart_conversion)
 
   def _GenerateNativeBinding(self, idl_name, argument_count, dart_declaration,
       native_suffix, is_custom, emit_metadata=True):
     metadata = []
     if emit_metadata:
       metadata = self._metadata.GetFormattedMetadata(
           self._renamer.GetLibraryName(self._interface),
-          self._interface.id, idl_name, '  ')
+          self._interface, idl_name, '  ')
 
     native_binding = '%s_%s_%s' % (self._interface.id, idl_name, native_suffix)
     self._members_emitter.Emit(
         '\n'
         '  $METADATA$DART_DECLARATION native "$NATIVE_BINDING";\n',
         DOMINTERFACE=self._interface.id,
         METADATA=metadata,
         DART_DECLARATION=dart_declaration,
         NATIVE_BINDING=native_binding)
 
@@ skipping 107 matching lines @@
             '    if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount))\n'
             '        return func;\n',
             CLASS_NAME=os.path.splitext(os.path.basename(path))[0])
 
 def _IsOptionalStringArgumentInInitEventMethod(interface, operation, argument):
   return (
       interface.id.endswith('Event') and
       operation.id.startswith('init') and
       argument.ext_attrs.get('Default') == 'Undefined' and
       argument.type.id == 'DOMString')