Move WPT fetch out of the LocalWPT constructor.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_exporter.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 logging
 
 from webkitpy.w3c.local_wpt import LocalWPT
 from webkitpy.w3c.chromium_commit import ChromiumCommit
 
 _log = logging.getLogger(__name__)
 
 CHROMIUM_WPT_DIR = 'third_party/WebKit/LayoutTests/external/wpt/'
 
 
 class TestExporter(object):
 
     def __init__(self, host, wpt_github, dry_run=False):
         self.host = host
         self.wpt_github = wpt_github
         self.dry_run = dry_run
         self.local_wpt = LocalWPT(self.host)
+        self.local_wpt.fetch()
 
     def run(self):
         """Query in-flight pull requests, then merge PR or create one.
 
         This script assumes it will be run on a regular interval. On
         each invocation, it will either attempt to merge or attempt to
         create a PR, never both.
         """
         pull_requests = self.wpt_github.in_flight_pull_requests()
 
@@ skipping 103 matching lines @@
         def is_exportable(chromium_commit):
             patch = chromium_commit.format_patch()
             return (
                 patch
                 and self.local_wpt.test_patch(patch)
                 and 'NOEXPORT=true' not in chromium_commit.message()
                 and not chromium_commit.message().startswith('Import ')
             )
 
         return [c for c in chromium_commits if is_exportable(c)]