Remove automation references.

PRESUBMIT.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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 34 matching lines @@
 # (best effort).
 _TEST_CODE_EXCLUDED_PATHS = (
     r'.*[\\\/](fake_|test_|mock_).+%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.+_test_(base|support|util)%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.+_(api|browser|kif|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
         _IMPLEMENTATION_EXTENSIONS,
     r'.+profile_sync_service_harness%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.*[\\\/](test|tool(s)?)[\\\/].*',
     # content_shell is used for running layout tests.
     r'content[\\\/]shell[\\\/].*',
-    # At request of folks maintaining this folder.
-    r'chrome[\\\/]browser[\\\/]automation[\\\/].*',
     # Non-production example code.
     r'mojo[\\\/]examples[\\\/].*',
     # Launcher for running iOS tests on the simulator.
     r'testing[\\\/]iossim[\\\/]iossim\.mm$',
 )
 
 
 _TEST_ONLY_WARNING = (
     'You might be calling functions intended only for testing from\n'
     'production code.  It is OK to ignore this warning if you know what\n'
@@ skipping 2233 matching lines @@
   results.extend(input_api.canned_checks.CheckTreeIsOpen(
       input_api,
       output_api,
       json_url='http://chromium-status.appspot.com/current?format=json'))
 
   results.extend(input_api.canned_checks.CheckChangeHasBugField(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasDescription(
       input_api, output_api))
   return results