Add support for generating thunk source from IDL.

ppapi/generators/idl_c_header.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """ Generator for C style prototypes and definitions """
 
 import glob
 import os
 import re
 import sys
 
 from idl_log import ErrOut, InfoOut, WarnOut
 from idl_node import IDLAttribute, IDLNode
 from idl_ast import IDLAst
 from idl_option import GetOption, Option, ParseOptions
 from idl_outfile import IDLOutFile
 from idl_parser import ParseFiles
 from idl_c_proto import CGen, GetNodeComments, CommentLines, Comment
 from idl_generator import Generator, GeneratorByFile
 
 Option('dstroot', 'Base directory of output', default=os.path.join('..', 'c'))
 Option('guard', 'Include guard prefix', default=os.path.join('ppapi', 'c'))
-Option('out', 'List of output files', default='')
 
 
 def GetOutFileName(filenode, relpath=None, prefix=None):
   path, name = os.path.split(filenode.GetProperty('NAME'))
   name = os.path.splitext(name)[0] + '.h'
   if prefix: name = '%s%s' % (prefix, name)
   if path: name = os.path.join(path, name)
   if relpath: name = os.path.join(relpath, name)
   return name
 
@@ skipping 210 matching lines @@
     print "Golden file for M13-M15 failed."
     failed =1
   else:
     print "Golden file for M13-M15 passed."
 
   return failed
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv[1:]))