wpt-import: Fix a failure on "git add"

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

 # Copyright 2014 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.
 
 """Fetches a copy of the latest state of a W3C test repository and commits.
 
 If this script is given the argument --auto-update, it will also:
  1. Upload a CL.
  2. Trigger try jobs and wait for them to complete.
  3. Make any changes that are required for new failing tests.
@@ skipping 212 matching lines @@
         _, show_ref_output = self.run(['git', 'show-ref', 'origin/master'], cwd=temp_repo_path)
         master_commitish = show_ref_output.split()[0]
 
         dest_path = self.finder.path_from_layout_tests('external', dest_dir_name)
         self._clear_out_dest_path(dest_path)
 
         _log.info('Importing the tests.')
         test_copier = TestCopier(self.host, temp_repo_path)
         test_copier.do_import()
 
-        self.run(['git', 'add', '--all', 'LayoutTests/external/%s' % dest_dir_name])
+        self.run(['git', 'add', '--all', 'external/%s' % dest_dir_name])
 
         self._delete_orphaned_baselines(dest_path)
 
         self._generate_manifest(dest_path)
 
         _log.info('Updating TestExpectations for any removed or renamed tests.')
         self.update_all_test_expectations_files(self._list_deleted_tests(), self._list_renamed_tests())
 
         return '%s@%s' % (dest_dir_name, master_commitish)
 
@@ skipping 230 matching lines @@
         """Returns a dict mapping source to dest name for layout tests that have been renamed."""
         out = self.check_run(['git', 'diff', 'origin/master', '-M100%', '--diff-filter=R', '--name-status'])
         renamed_tests = {}
         for line in out.splitlines():
             _, source_path, dest_path = line.split()
             source_test = self.finder.layout_test_name(source_path)
             dest_test = self.finder.layout_test_name(dest_path)
             if source_test and dest_test:
                 renamed_tests[source_test] = dest_test
         return renamed_tests