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

Source/bindings/scripts/v8_utilities.py

Index: Source/bindings/scripts/v8_utilities.py
diff --git a/Source/bindings/scripts/v8_utilities.py b/Source/bindings/scripts/v8_utilities.py
index 9f1eb6d1bf6c0737d3e16016e8fe9db84c7cf5e0..6b53d079af93309d7d8d642900b080e6e10b4189 100644
--- a/Source/bindings/scripts/v8_utilities.py
+++ b/Source/bindings/scripts/v8_utilities.py
@@ -146,6 +146,23 @@ def activity_logging_world_list(member, access_type=''):
     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',