[WPT Export] Fix cwd on run_command calls in ChromiumCommit

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_exporter_unittest.py

 # Copyright 2016 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 unittest
 
 from webkitpy.common.host_mock import MockHost
 from webkitpy.common.system.executive_mock import MockExecutive
 from webkitpy.w3c.test_exporter import TestExporter
 from webkitpy.w3c.wpt_github_mock import MockWPTGitHub
@@ skipping 35 matching lines @@
         wpt_github = MockWPTGitHub(pull_requests=[{'number': 1, 'title': 'abc'}])
         TestExporter(host, wpt_github, dry_run=True).run()
 
         self.assertEqual(wpt_github.calls, ['in_flight_pull_requests'])
 
     def test_creates_pull_request_for_earliest_commit(self):
         host = MockHost()
 
         def mock_command(args):
             canned_git_outputs = {
-                'show': 'newer fake text' if 'cafedad5' in args else 'older fake text',
-                'rev-list': 'facebeef\ncafedad5',
+                'show': 'newer fake text' if 'add087a97844f4b9e307d9a216940582d96db306' in args else 'older fake text',
+                'rev-list': 'c881563d734a86f7d9cd57ac509653a61c45c240\nadd087a97844f4b9e307d9a216940582d96db306',
                 'footers': 'fake-cr-position',
                 'remote': 'github',
                 'format-patch': 'fake patch',
                 'diff': 'fake patch diff',
                 'diff-tree': 'fake\n\files\nchanged',
+                'crrev-parse': 'c881563d734a86f7d9cd57ac509653a61c45c240',
             }
             return canned_git_outputs.get(args[1], '')
 
         host.executive = MockExecutive(run_command_fn=mock_command)
         wpt_github = MockWPTGitHub(pull_requests=[])
 
         TestExporter(host, wpt_github).run()
 
         self.assertEqual(wpt_github.calls, ['in_flight_pull_requests', 'create_pr'])
         self.assertEqual(wpt_github.pull_requests_created,
                          [('chromium-export-try', 'older fake text', 'older fake text')])