Update idlsync.py to pull in dependencies required for chrome api generation.

third_party/chrome/ppapi/generators/generator.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.
+
+import os
+import sys
+import traceback
+
+# Note: some of these files are imported to register cmdline options.
+from idl_generator import Generator
+from idl_option import ParseOptions
+from idl_outfile import IDLOutFile
+from idl_parser import ParseFiles
+from idl_c_header import HGen
+from idl_thunk import TGen
+from idl_gen_pnacl import PnaclGen
+
+
+def Main(args):
+  # If no arguments are provided, assume we are trying to rebuild the
+  # C headers with warnings off.
+  try:
+    if not args:
+      args = [
+          '--wnone', '--cgen', '--range=start,end',
+          '--pnacl', '--pnaclshim',
+          '../native_client/src/untrusted/pnacl_irt_shim/pnacl_shim.c',
+          '--tgen',
+      ]
+      current_dir = os.path.abspath(os.getcwd())
+      script_dir = os.path.abspath(os.path.dirname(__file__))
+      if current_dir != script_dir:
+        print '\nIncorrect CWD, default run skipped.'
+        print 'When running with no arguments set CWD to the scripts directory:'
+        print '\t' + script_dir + '\n'
+        print 'This ensures correct default paths and behavior.\n'
+        return 1
+
+    filenames = ParseOptions(args)
+    ast = ParseFiles(filenames)
+    if ast.errors:
+      print 'Found %d errors.  Aborting build.\n' % ast.errors
+      return 1
+    return Generator.Run(ast)
+  except SystemExit, ec:
+    print 'Exiting with %d' % ec.code
+    sys.exit(ec.code)
+
+  except:
+    typeinfo, value, tb = sys.exc_info()
+    traceback.print_exception(typeinfo, value, tb)
+    print 'Called with: ' + ' '.join(sys.argv)
+
+
+if __name__ == '__main__':
+    sys.exit(Main(sys.argv[1:]))