Update links to layout test documentation.

media/tools/layout_tests/test_expectations.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.
 
 """A module to analyze test expectations for Webkit layout tests."""
 
 import urllib2
 
 from webkitpy.layout_tests.models.test_expectations import *
 
 # Default location for chromium test expectation file.
 # TODO(imasaki): support multiple test expectations files.
 DEFAULT_TEST_EXPECTATIONS_LOCATION = (
     'http://src.chromium.org/blink/trunk/LayoutTests/TestExpectations')
 
-# The following is from test expectation syntax. The detail can be found in
-# http://www.chromium.org/developers/testing/webkit-layout-tests#TOC-Test-Expectations
+# The following is from test expectation syntax.
+# See: //docs/testing/layout_test_expectations.md
 # <decision> ::== [SKIP] [WONTFIX] [SLOW]
 DECISION_NAMES = ['SKIP', 'WONTFIX', 'SLOW']
 # <config> ::== RELEASE | DEBUG
 CONFIG_NAMES = ['RELEASE', 'DEBUG']
 # Only hard code keywords we don't expect to change.  Determine the rest from
 # the format of the status line.
 KNOWN_TE_KEYWORDS = DECISION_NAMES + CONFIG_NAMES
 
 
 class TestExpectations(object):
@@ skipping 70 matching lines @@
 
     test_expectation_info['Comments'] = parsed.comment or ''
     test_expectation_info['Bugs'] = parsed.bugs or [];
     test_expectation_info['Platforms'] =  parsed.specifiers or []
     # Shovel the expectations and modifiers in as "<key>: True" entries.  Ugly,
     # but required by the rest of the pipeline for parsing.
     for m in parsed.expectations:
       test_expectation_info[m] = True
 
     return parsed.name, test_expectation_info