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

third_party/chrome/ppapi/generators/idl_tests.py

Index: third_party/chrome/ppapi/generators/idl_tests.py
diff --git a/third_party/chrome/ppapi/generators/idl_tests.py b/third_party/chrome/ppapi/generators/idl_tests.py
new file mode 100755
index 0000000000000000000000000000000000000000..cfc9fe8bac11d3507823f4c1ee208c61d007741e
--- /dev/null
+++ b/third_party/chrome/ppapi/generators/idl_tests.py
@@ -0,0 +1,41 @@
+#!/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.
+
+""" Test runner for IDL Generator changes """
+
+import subprocess
+import sys
+
+def TestIDL(testname, args):
+  print '\nRunning unit tests for %s.' % testname
+  try:
+    args = [sys.executable, testname] + args
+    subprocess.check_call(args)
+    return 0
+  except subprocess.CalledProcessError as err:
+    print 'Failed with %s.' % str(err)
+    return 1
+
+def main(args):
+  errors = 0
+  errors += TestIDL('idl_lexer.py', ['--test'])
+  assert errors == 0
+  errors += TestIDL('idl_parser.py', ['--test'])
+  assert errors == 0
+  errors += TestIDL('idl_c_header.py', [])
+  assert errors == 0
+  errors += TestIDL('idl_c_proto.py', ['--wnone', '--test'])
+  assert errors == 0
+  errors += TestIDL('idl_gen_pnacl.py', ['--wnone', '--test'])
+  assert errors == 0
+
+  if errors:
+    print '\nFailed tests.'
+  return errors
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))
+