PPAPI: Make PPP_MessageHandler work in PNaCl

ppapi/generators/idl_c_proto.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 sys
@@ skipping 130 matching lines @@
     },
     'cstr_t': {
       'in': '%s',
       'inout': '%s*',
       'out': '%s*',
       'return': '%s',
       'store': '%s'
     },
     'TypeValue': {
       'in': '%s',
+      'constptr_in': 'const %s*',  # So we can use const* for PP_Var sometimes.
       'inout': '%s*',
       'out': '%s*',
       'return': '%s',
       'store': '%s'
     },
   }
 
 
   #
   # RemapName
@@ skipping 214 matching lines @@
     self.LogExit('GetTypeByMode %s = %s' % (node, out))
     return out
 
 
   # Get the passing mode of the object (in, out, inout).
   def GetParamMode(self, node):
     self.Log('GetParamMode for %s' % node)
     if node.GetProperty('in'): return 'in'
     if node.GetProperty('out'): return 'out'
     if node.GetProperty('inout'): return 'inout'
+    if node.GetProperty('constptr_in'): return 'constptr_in'
     return 'return'
 
   #
   # GetComponents
   #
   # Returns the signature components of an object as a tuple of
   # (rtype, name, arrays, callspec) where:
   #   rtype - The store or return type of the object.
   #   name - The name of the object.
   #   arrays - A list of array dimensions as [] or [<fixed_num>].
@@ skipping 413 matching lines @@
   for f in ast.GetListOf('File'):
     if f.GetProperty('ERRORS') > 0:
       print 'Skipping %s' % f.GetName()
       continue
     for node in f.GetChildren()[2:]:
       print cgen.Define(node, ast.releases, comment=True, prefix='tst_')
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))