Move all googletest related scripts into googletest/

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 swarm_client.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into gcl.
 """
 
 def CommonChecks(input_api, output_api):
   import sys
   def join(*args):
     return input_api.os_path.join(input_api.PresubmitLocalPath(), *args)
 
   output = []
   sys_path_backup = sys.path
   try:
     sys.path = [
+      input_api.PresubmitLocalPath(),
+      join('googletest'),
       join('tests', 'gtest_fake'),
     ] + sys.path
     output.extend(input_api.canned_checks.RunPylint(input_api, output_api))
   finally:
     sys.path = sys_path_backup
 
   integation_tests = []
   if not input_api.is_committing:
     # These tests are touching the live infrastructure. It's a pain if your IP
     # is not whitelisted so only run these on commit.
     integation_tests = [
       r'.*isolateserver_archive_smoke_test\.py$',
       r'.*swarm_get_results_smoke_test\.py$',
     ]
 
   output.extend(
       input_api.canned_checks.RunUnitTestsInDirectory(
           input_api, output_api,
           input_api.os_path.join(input_api.PresubmitLocalPath(), 'tests'),
           whitelist=[r'.+_test\.py$'],
           blacklist=integation_tests))
+  output.extend(
+      input_api.canned_checks.RunUnitTestsInDirectory(
+          input_api, output_api,
+          input_api.os_path.join(
+              input_api.PresubmitLocalPath(), 'googletest', 'tests'),
+          whitelist=[r'.+_test\.py$']))
 
   if input_api.is_committing:
     output.extend(input_api.canned_checks.PanProjectChecks(input_api,
                                                            output_api,
                                                            owners_check=False))
   return output
 
 
 def CheckChangeOnUpload(input_api, output_api):
   return CommonChecks(input_api, output_api)
 
 
 def CheckChangeOnCommit(input_api, output_api):
   return CommonChecks(input_api, output_api)