webkitpy: Update template for buildbot build URLs

Change-Id: I76cccbcbf245d7dddf586f03f99360004431e738
Reviewed-on: https://chromium-review.googlesource.com/806636
Commit-Queue: Quinten Yearsley <qyearsley@chromium.org>
Reviewed-by: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521459}

third_party/WebKit/Tools/Scripts/webkitpy/common/net/buildbot.py

@@ -140,7 +140,8 @@ def current_build_link(host):
     build_number = host.environ.get('BUILDBOT_BUILDNUMBER')
     if not (master_name and builder_name and build_number):
         return None
-    return 'https://build.chromium.org/p/%s/builders/%s/builds/%s' % (master_name, builder_name, build_number)
+    return ('https://ci.chromium.org/buildbot/%s/%s/%s' %
+            (master_name, builder_name, build_number))
 
 
 def filter_latest_builds(builds):

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

@@ -346,7 +346,7 @@ class TestImporterTest(LoggingTestCase):
         importer.host.environ['BUILDBOT_BUILDNUMBER'] = '123'
         description = importer._cl_description(directory_owners={})
         self.assertIn(
-            'Build: https://build.chromium.org/p/my.master/builders/b/builds/123\n\n',
+            'Build: https://ci.chromium.org/buildbot/my.master/b/123\n\n',
             description)
         self.assertEqual(host.executive.calls, [['git', 'log', '-1', '--format=%B']])