WPT import: Shorten CL commit message.

We are currently hitting an "argument list too long" error in git-cl upload
that is blocking imports.

At least temporarily, stop mentioning the owners for the directories being
changed, and trim the "note to sheriffs" so that the CL message gets
shorter.

Bug: 780055
Change-Id: Icf65268c5f8429c1b18d327d320a5731b1bd0784
Reviewed-on: https://chromium-review.googlesource.com/749062
Commit-Queue: Philip Jägenstedt <foolip@chromium.org>
Reviewed-by: Philip Jägenstedt <foolip@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513109}

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

@@ -470,15 +470,8 @@ class TestImporter(object):
             description += 'Build: %s\n\n' % build_link
 
         description += (
-            'Note to sheriffs: This CL imports external tests and adds\n'
-            'expectations for those tests; if this CL is large and causes\n'
-            'a few new failures, please fix the failures by adding new\n'
-            'lines to TestExpectations rather than reverting. See:\n'
-            'https://chromium.googlesource.com'
-            '/chromium/src/+/master/docs/testing/web_platform_tests.md\n\n')
-
-        if directory_owners:
-            description += self._format_directory_owners(directory_owners) + '\n\n'
+            'Note to sheriffs: This is an automatically-generated CL. Please\n'
+            'contact ecosystem-infra@chromium.org in case of problems.\n\n')
 
         # Move any No-Export tag to the end of the description.
         description = description.replace('No-Export: true', '')

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

@@ -4,6 +4,7 @@
 
 import datetime
 import json
+import unittest
 
 from webkitpy.common.checkout.git_mock import MockGit
 from webkitpy.common.host_mock import MockHost
@@ -267,12 +268,8 @@ class TestImporterTest(LoggingTestCase):
         self.assertEqual(
             description,
             'Last commit message\n\n'
-            'Note to sheriffs: This CL imports external tests and adds\n'
-            'expectations for those tests; if this CL is large and causes\n'
-            'a few new failures, please fix the failures by adding new\n'
-            'lines to TestExpectations rather than reverting. See:\n'
-            'https://chromium.googlesource.com'
-            '/chromium/src/+/master/docs/testing/web_platform_tests.md\n\n'
+            'Note to sheriffs: This is an automatically-generated CL. Please\n'
+            'contact ecosystem-infra@chromium.org in case of problems.\n\n'
             'No-Export: true')
         self.assertEqual(host.executive.calls, [['git', 'log', '-1', '--format=%B']])
 
@@ -298,6 +295,7 @@ class TestImporterTest(LoggingTestCase):
             'No-Export: true',
             description)
 
+    @unittest.skip("http://crbug.com/780055")
     def test_cl_description_with_directory_owners(self):
         host = MockHost()
         host.executive = MockExecutive(output='Last commit message\n\n')