Update from chromium https://crrev.com/301725/

build/android/buildbot/bb_run_bot.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2013 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 collections
 import copy
 import json
 import os
@@ skipping 98 matching lines @@
       run_test_cmd.extend(['-f', test])
     if test_obj.extra_args:
       run_test_cmd.extend(test_obj.extra_args)
     commands.append(run_test_cmd)
   return commands
 
 
 def GetBotStepMap():
   compile_step = ['compile']
   chrome_proxy_tests = ['chrome_proxy']
-  chrome_sync_shell_tests = ['sync']
   python_unittests = ['python_unittests']
   std_host_tests = ['check_webview_licenses', 'findbugs']
   emma_coverage_tests = [x for x in std_host_tests if x is not 'findbugs']
   std_build_steps = ['compile', 'zip_build']
   std_test_steps = ['extract_build']
   std_tests = ['ui', 'unit']
   telemetry_tests = ['telemetry_perf_unittests']
   flakiness_server = (
       '--flakiness-server=%s' % constants.UPSTREAM_FLAKINESS_SERVER)
   experimental = ['--experimental']
@@ skipping 31 matching lines @@
           '--cleanup'])),
       B('fyi-x86-builder-dbg',
         H(compile_step + std_host_tests, experimental, target_arch='ia32')),
       B('fyi-builder-dbg',
         H(std_build_steps + emma_coverage_tests, experimental,
           extra_gyp='emma_coverage=1')),
       B('x86-builder-dbg',
         H(compile_step + std_host_tests, target_arch='ia32')),
       B('fyi-builder-rel', H(std_build_steps,  experimental)),
       B('fyi-tests', H(std_test_steps),
-        T(std_tests + chrome_sync_shell_tests + python_unittests,
+        T(std_tests + python_unittests,
                       ['--experimental', flakiness_server,
                       '--coverage-bucket', CHROMIUM_COVERAGE_BUCKET,
                       '--cleanup'])),
       B('fyi-component-builder-tests-dbg',
         H(compile_step, extra_gyp='component=shared_library'),
         T(std_tests, ['--experimental', flakiness_server])),
       B('gpu-builder-tests-dbg',
         H(compile_step),
         T(['gpu'], ['--install=ContentShell'])),
       # Pass empty T([]) so that logcat monitor and device status check are run.
@@ skipping 120 matching lines @@
   for command in commands:
     print 'Will run: ', bb_utils.CommandToString(command)
   print
 
   env = GetEnvironment(bot_config.host_obj, options.testing)
   return RunBotCommands(options, commands, env)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))