Change return type to w3c standard of void for AudioBufferCallback.

lib/html/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 34 matching lines @@
       conversion_includes = []
       for argument in operation.arguments:
         argument_type_info = self._TypeInfo(argument.type.id)
         parameters.append('%s %s' % (argument_type_info.parameter_type(),
                                      argument.id))
         arguments.append(argument_type_info.to_dart_conversion(argument.id))
         conversion_includes.extend(argument_type_info.conversion_includes())
 
       cpp_header_handlers_emitter.Emit(
           '\n'
-          '    virtual bool handleEvent($PARAMETERS);\n',
+          '    virtual void handleEvent($PARAMETERS);\n',

[Anton Muhin, 2012/10/18 09:59:16]

that's wrong: handleEvent in WebKit should return bool.  I mean in C++, not in
Dart, of course.

           PARAMETERS=', '.join(parameters))
 
       if 'Custom' in operation.ext_attrs:
         continue
 
       cpp_impl_includes |= set(conversion_includes)
       arguments_declaration = 'Dart_Handle arguments[] = { %s }' % ', '.join(arguments)
       if not len(arguments):
         arguments_declaration = 'Dart_Handle* arguments = 0'
       cpp_impl_handlers_emitter.Emit(
           '\n'
-          'bool $CLASS_NAME::handleEvent($PARAMETERS)\n'
+          'void $CLASS_NAME::handleEvent($PARAMETERS)\n'

[Anton Muhin, 2012/10/18 09:59:16]

ditto

           '{\n'
           '    if (!m_callback.isolate()->isAlive())\n'
           '        return false;\n'
           '    DartIsolate::Scope scope(m_callback.isolate());\n'
           '    DartApiScope apiScope;\n'
           '    $ARGUMENTS_DECLARATION;\n'
           '    return m_callback.handleEvent($ARGUMENT_COUNT, arguments);\n'
           '}\n',
           CLASS_NAME=class_name,
           PARAMETERS=', '.join(parameters),
@@ skipping 783 matching lines @@
   def EmitResolver(self, template, output_dir):
     file_path = os.path.join(output_dir, 'DartResolver.cpp')
     includes_emitter, body_emitter = self._emitters.FileEmitter(file_path).Emit(template)
     for header_file in self._headers_list:
       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'
           '        return func;\n',
           CLASS_NAME=os.path.splitext(os.path.basename(path))[0])