[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/bindings/scripts/v8_attributes.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 268 matching lines @@
         context['cpp_value_original'] = cpp_value
         cpp_value = 'cppValue'
 
     def v8_set_return_value_statement(for_main_world=False):
         if context['is_keep_alive_for_gc'] or 'CachedAttribute' in extended_attributes:
             return 'V8SetReturnValue(info, v8Value)'
         return idl_type.v8_set_return_value(
             cpp_value, extended_attributes=extended_attributes, script_wrappable='impl',
             for_main_world=for_main_world, is_static=attribute.is_static)
 
+    cpp_value_to_script_wrappable = cpp_value
+    if idl_type.is_array_buffer_view_or_typed_array:
+        cpp_value_to_script_wrappable += '.View()'
+
     context.update({
         'cpp_value': cpp_value,
+        'cpp_value_to_script_wrappable': cpp_value_to_script_wrappable,
         'cpp_value_to_v8_value': idl_type.cpp_value_to_v8_value(
             cpp_value=cpp_value, creation_context='holder',
             extended_attributes=extended_attributes),
         'v8_set_return_value_for_main_world': v8_set_return_value_statement(for_main_world=True),
         'v8_set_return_value': v8_set_return_value_statement(),
     })
 
 def getter_expression(interface, attribute, context):
     arguments = []
     this_getter_base_name = getter_base_name(interface, attribute, arguments)
@@ skipping 10 matching lines @@
     if attribute.idl_type.is_explicit_nullable:
         arguments.append('isNull')
     if context['is_getter_raises_exception']:
         arguments.append('exceptionState')
     if attribute.idl_type.use_output_parameter_for_result:
         arguments.append('result')
 
     expression = '%s(%s)' % (getter_name, ', '.join(arguments))
     # Needed to handle getter expressions returning Type& as the
     # use site for |expression| expects Type*.
-    if attribute.idl_type.is_interface_type and len(arguments) == 0:
+    if (attribute.idl_type.is_interface_type and len(arguments) == 0 and
+            not attribute.idl_type.is_array_buffer_view_or_typed_array):
         return 'WTF::GetPtr(%s)' % expression
     return expression
 
 
 CONTENT_ATTRIBUTE_GETTER_NAMES = {
     'boolean': 'FastHasAttribute',
     'long': 'GetIntegralAttribute',
     'unsigned long': 'GetUnsignedIntegralAttribute',
 }
 
@@ skipping 232 matching lines @@
 def is_constructor_attribute(attribute):
     return attribute.idl_type.name.endswith('Constructor')
 
 
 def is_named_constructor_attribute(attribute):
     return attribute.idl_type.name.endswith('ConstructorConstructor')
 
 
 def update_constructor_attribute_context(interface, attribute, context):
     context['needs_constructor_getter_callback'] = context['measure_as'] or context['deprecate_as']