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

third_party/chrome/tools/highlighters/hilite_me_highlighter.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.
-
-import urllib
-import urllib2
-
-class HiliteMeHighlighter(object):
-  """Highlighter that calls the http://hilite.me API to highlight code.
-  """
-  def GetCSS(self, style):
-    return ''
-
-  def GetCodeElement(self, code, style):
-    # Call hilite.me API to do syntax highlighting
-    return urllib2.urlopen('http://hilite.me/api',
-        urllib.urlencode([
-            ('code', code),
-            ('lexer', 'cpp'),
-            ('style', style),
-            ('linenos', 1)])
-    ).read()
-
-  def DisplayName(self):
-    return 'hilite.me (slow, requires internet)'
-
-  def GetStyles(self):
-    return ['monokai', 'manni', 'perldoc', 'borland', 'colorful', 'default',
-        'murphy', 'vs', 'trac', 'tango', 'fruity', 'autumn', 'bw', 'emacs',
-        'vim', 'pastie', 'friendly', 'native']