PPAPI: Make generator support "no_interface_string"

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
@@ skipping 270 matching lines @@
     # Generate all interface defines
     out.Write('\n')
     for node in filenode.GetListOf('Interface'):
       idefs = ''
       macro = cgen.GetInterfaceMacro(node)
       unique = node.GetUniqueReleases(releases)
 
       # Skip this interface if there are no matching versions
       if not unique: continue
 
+      # Skip this interface if it should have no interface string.
+      if node.GetProperty('no_interface_string'): continue
+
       last_stable_ver = None
       last_dev_rel = None
       for rel in unique:
         channel = node.GetProperty('FILE').release_map.GetChannel(rel)
         if channel == 'dev':
           last_dev_rel = rel
 
       for rel in unique:
         version = node.GetVersion(rel)
         name = cgen.GetInterfaceString(node, version)
@@ skipping 61 matching lines @@
     print "Golden file for M13-M17 failed."
     failed =1
   else:
     print "Golden file for M13-M17 passed."
 
   return failed
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))