IDL: Add forEach() method to iterable<>/maplike<>/setlike<> interfaces

Source/bindings/scripts/v8_utilities.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 183 matching lines @@
 
 
 # [CallWith]
 CALL_WITH_ARGUMENTS = {
     'ScriptState': 'scriptState',
     'ExecutionContext': 'executionContext',
     'ScriptArguments': 'scriptArguments.release()',
     'ActiveWindow': 'callingDOMWindow(info.GetIsolate())',
     'FirstWindow': 'enteredDOMWindow(info.GetIsolate())',
     'Document': 'document',
+    'ThisValue': 'ScriptValue(scriptState, info.This())',
 }
 # List because key order matters, as we want arguments in deterministic order
 CALL_WITH_VALUES = [
     'ScriptState',
     'ExecutionContext',
     'ScriptArguments',
     'ActiveWindow',
     'FirstWindow',
     'Document',
+    'ThisValue',
 ]
 
 
 def call_with_arguments(call_with_values):
     if not call_with_values:
         return []
     return [CALL_WITH_ARGUMENTS[value]
             for value in CALL_WITH_VALUES
             if extended_attribute_value_contains(call_with_values, value)]
 
@@ skipping 167 matching lines @@
 
     The returned function checks if a method/attribute is enabled.
     Given extended attribute RuntimeEnabled=FeatureName, return:
         RuntimeEnabledFeatures::{featureName}Enabled
     """
     extended_attributes = definition_or_member.extended_attributes
     if 'RuntimeEnabled' not in extended_attributes:
         return None
     feature_name = extended_attributes['RuntimeEnabled']
     return 'RuntimeEnabledFeatures::%sEnabled' % uncapitalize(feature_name)