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

third_party/chrome/tools/schema_util.py

-# 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.
-"""Utilies for the processing of schema python structures.
-"""
-
-import json_parse
-
-def CapitalizeFirstLetter(value):
-  return value[0].capitalize() + value[1:]
-
-def GetNamespace(ref):
-  return SplitNamespace(ref)[0]
-
-def StripNamespace(ref):
-  return SplitNamespace(ref)[1]
-
-def SplitNamespace(ref):
-  """Returns (namespace, entity) from |ref|, e.g. app.window.AppWindow ->
-  (app.window, AppWindow). If |ref| isn't qualified then returns (None, ref).
-  """
-  if '.' in ref:
-    return tuple(ref.rsplit('.', 1))
-  return (None, ref)
-
-def JsFunctionNameToClassName(namespace_name, function_name):
-  """Transform a fully qualified function name like foo.bar.baz into FooBarBaz
-
-  Also strips any leading 'Experimental' prefix."""
-  parts = []
-  full_name = namespace_name + "." + function_name
-  for part in full_name.split("."):
-    parts.append(CapitalizeFirstLetter(part))
-  if parts[0] == "Experimental":
-    del parts[0]
-  class_name = "".join(parts)
-  return class_name