Add more functions to the list of leaf functions which do not need an

tools/dom/scripts/generator.py

Index: tools/dom/scripts/generator.py
===================================================================
--- tools/dom/scripts/generator.py	(revision 31522)
+++ tools/dom/scripts/generator.py	(working copy)
@@ -725,9 +725,12 @@
   def to_dart_conversion(self, value, interface_name=None, attributes=None):
     return 'Dart%s::toDart(%s)' % (self._idl_type, value)
 
-  def return_to_dart_conversion(self, value,
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup,
                                 interface_name=None, attributes=None):
-    return 'Dart%s::returnToDart(args, %s)' % (self._idl_type, value)
+    auto_dart_scope='true' if auto_dart_scope_setup else 'false'
+    return 'Dart%s::returnToDart(args, %s, %s)' % (self._idl_type,
+                                                   value,
+                                                   auto_dart_scope)
 
   def custom_to_dart(self):
     return self._data.custom_to_dart
@@ -855,7 +858,7 @@
       return 'DartDOMWrapper::vectorToDart(%s)' % value
     return 'DartDOMWrapper::vectorToDart<%s>(%s)' % (self._item_info.bindings_class(), value)
 
-  def return_to_dart_conversion(self, value,
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup=True,
                                 interface_name=None, attributes=None):
     return 'Dart_SetReturnValue(args, %s)' % self.to_dart_conversion(
         value,
@@ -922,7 +925,7 @@
       function_name += 'WithNullCheck'
     return '%s(%s)' % (function_name, value)
 
-  def return_to_dart_conversion(self, value,
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup=True,
                                 interface_name=None, attributes=None):
     return 'Dart_SetReturnValue(args, %s)' % self.to_dart_conversion(
         value,
@@ -977,12 +980,15 @@
   def to_dart_conversion(self, value, interface_name, attributes):
     return 'Dart%s::toDart(%s)' % (self._idl_type, self.to_conversion_cast(value, interface_name, attributes))
 
-  def return_to_dart_conversion(self, value, interface_name, attr):
-    return 'Dart%s::returnToDart(args, %s)' % (self._idl_type,
-                                               self.to_conversion_cast(
-                                                   value,
-                                                   interface_name,
-                                                   attr))
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup,
+                                interface_name, attr):
+    auto_dart_scope='true' if auto_dart_scope_setup else 'false'
+    return 'Dart%s::returnToDart(args, %s, %s)' % (self._idl_type,
+                                                   self.to_conversion_cast(
+                                                       value,
+                                                       interface_name,
+                                                       attr),
+                                                   auto_dart_scope)
 
   def argument_expression(self, name, interface_name):
     return name if interface_name.endswith('List') else '%s->propertyReference()' % name
@@ -999,7 +1005,8 @@
   def to_dart_conversion(self, value, interface_name, attributes):
     return 'DartUtilities::arrayBufferViewToDart(%s)' % value
 
-  def return_to_dart_conversion(self, value, interface_name, attributes):
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup,
+                                interface_name, attributes):
     return 'Dart_SetReturnValue(args, %s)' % self.to_dart_conversion(
         value,
         interface_name,
@@ -1022,7 +1029,8 @@
     function_name = function_name[0].lower() + function_name[1:]
     return '%s(%s)' % (function_name, value)
 
-  def return_to_dart_conversion(self, value, interface_name, attributes):
+  def return_to_dart_conversion(self, value, auto_dart_scope_setup,
+                                interface_name, attributes):
     return 'Dart_SetReturnValue(args, %s)' % self.to_dart_conversion(
         value,
         interface_name,