Removing unnecessary PerWorldBindings for DOM API calls that are monitored by Activity Logger.

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 128 matching lines @@
     log_activity = extended_attributes['LogActivity']
     if log_activity and not log_activity.startswith(access_type):
         return set()
 
     includes.add('bindings/v8/V8DOMActivityLogger.h')
     if 'LogAllWorlds' in extended_attributes:
         return set(['', 'ForMainWorld'])
     return set([''])  # At minimum, include isolated worlds.
 
 
+# [ActivityLogging]
+def activity_logging_world_check(member):
+    """Returns if an isolated world check is required when generating activity
+    logging code.
+
+    The check is required when there is no per-world binding code and logging is
+    required only for isolated world.
+    """
+    extended_attributes = member.extended_attributes
+    if 'LogActivity' not in extended_attributes:
+        return False
+    if ('PerWorldBindings' not in extended_attributes and
+        'LogAllWorlds' not in extended_attributes):
+        return True
+    return False
+
+
 # [CallWith]
 CALL_WITH_ARGUMENTS = {
     'ScriptState': 'scriptState',
     'ExecutionContext': 'scriptContext',
     'ScriptArguments': 'scriptArguments.release()',
     'ActiveWindow': 'callingDOMWindow(info.GetIsolate())',
     'FirstWindow': 'enteredDOMWindow(info.GetIsolate())',
 }
 # List because key order matters, as we want arguments in deterministic order
 CALL_WITH_VALUES = [
@@ skipping 80 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)