Add auto scope setup parameter to the native resolvers in preparation for

tools/dom/scripts/systemnative.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for the systems to generate
 native binding from the IDL database."""
 
 import emitter
 import os
@@ skipping 1060 matching lines @@
         '\n'
         '  $METADATA$DART_DECLARATION native "$NATIVE_BINDING";\n',
         DOMINTERFACE=self._interface.id,
         METADATA=metadata,
         DART_DECLARATION=dart_declaration,
         NATIVE_BINDING=native_binding)
 
     cpp_callback_name = '%s%s' % (idl_name, native_suffix)
 
     self._cpp_resolver_emitter.Emit(
-        '    if (argumentCount == $ARGC && name == "$NATIVE_BINDING")\n'
-        '        return Dart$(INTERFACE_NAME)Internal::$CPP_CALLBACK_NAME;\n',
+        '    if (argumentCount == $ARGC && name == "$NATIVE_BINDING") {\n'
+        '        *autoSetupScope = true;\n'
+        '        return Dart$(INTERFACE_NAME)Internal::$CPP_CALLBACK_NAME;\n'
+        '    }\n',
         ARGC=argument_count,
         NATIVE_BINDING=native_binding,
         INTERFACE_NAME=self._interface.id,
         CPP_CALLBACK_NAME=cpp_callback_name)
 
     if is_custom:
       self._cpp_declarations_emitter.Emit(
           '\n'
           'void $CPP_CALLBACK_NAME(Dart_NativeArguments);\n',
           CPP_CALLBACK_NAME=cpp_callback_name)
@@ skipping 81 matching lines @@
       file_path = os.path.join(output_dir, '%s_DartResolver.cpp' % library_name)
       includes_emitter, body_emitter = self._emitters.FileEmitter(file_path).Emit(
         template,
         LIBRARY_NAME=library_name)
 
       headers = self._library_headers[library_name]
       for header_file in headers:
         path = os.path.relpath(header_file, output_dir)
         includes_emitter.Emit('#include "$PATH"\n', PATH=path)
         body_emitter.Emit(
-            '    if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount))\n'
+            '    if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount, autoSetupScope))\n'
             '        return func;\n',
             CLASS_NAME=os.path.splitext(os.path.basename(path))[0])
 
   def EmitClassIdTable(self, database, output_dir, type_registry, renamer):
     path = os.path.join(output_dir, 'DartWebkitClassIds.h')
     e = self._emitters.FileEmitter(path)
     e.Emit('// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file\n');
     e.Emit('// for details. All rights reserved. Use of this source code is governed by a\n');
     e.Emit('// BSD-style license that can be found in the LICENSE file.\n');
     e.Emit('// WARNING: Do not edit - generated code.\n');
@@ skipping 84 matching lines @@
     e.Emit("};\n");
     e.Emit('\n');
     e.Emit('} // namespace WebCore\n');
 
 def _IsOptionalStringArgumentInInitEventMethod(interface, operation, argument):
   return (
       interface.id.endswith('Event') and
       operation.id.startswith('init') and
       argument.ext_attrs.get('Default') == 'Undefined' and
       argument.type.id == 'DOMString')