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

third_party/chrome/tools/schema_util_test.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.
-
-from schema_util import JsFunctionNameToClassName
-from schema_util import StripNamespace
-import unittest
-
-class SchemaUtilTest(unittest.TestCase):
-  def testStripNamespace(self):
-    self.assertEquals('Bar', StripNamespace('foo.Bar'))
-    self.assertEquals('Baz', StripNamespace('Baz'))
-
-  def testJsFunctionNameToClassName(self):
-    self.assertEquals('FooBar', JsFunctionNameToClassName('foo', 'bar'))
-    self.assertEquals('FooBar',
-                      JsFunctionNameToClassName('experimental.foo', 'bar'))
-    self.assertEquals('FooBarBaz',
-                      JsFunctionNameToClassName('foo.bar', 'baz'))
-    self.assertEquals('FooBarBaz',
-                      JsFunctionNameToClassName('experimental.foo.bar', 'baz'))
-
-if __name__ == '__main__':
-  unittest.main()