Force HEAD revision on Clang and ASan Windows builders

masters/master.chromium.fyi/master.cfg

 # vim: ft=python:
 # Copyright (c) 2012 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.
 
 from buildbot.changes import svnpoller
 from buildbot.scheduler import Dependent
 from buildbot.scheduler import Nightly
 from buildbot.scheduler import Periodic
 from buildbot.scheduler import Scheduler
@@ skipping 867 matching lines @@
 
 f_chromium_win_clang = win_out().ChromiumFactory(
     slave_type='BuilderTester',
     target='Release',
     tests=win_clang_tests,
     # TODO(hans): Build chromium_builder_tests when LLVM PR11170 is fixed.
     options=['--build-tool=ninja', '--'] + win_clang_tests,
     factory_properties={
       'gclient_env': {
         'GYP_DEFINES': 'clang=1',
+        'LLVM_WIN_REVISION': 'HEAD',
     }})
 
 f_chromium_win_clang_dbg = win_out().ChromiumFactory(
     slave_type='BuilderTester',
     target='Debug',
     tests=win_clang_tests,
     options=['--build-tool=ninja', '--'] + win_clang_tests,
     factory_properties={
       'gclient_env': {
         'GYP_DEFINES': 'clang=1 component=static_library',
+        'LLVM_WIN_REVISION': 'HEAD',
     }})
 
 f_chromium_win_clang_asan = win_out().ChromiumFactory(
     slave_type='BuilderTester',
     target='Release',
     tests=win_clang_tests,
     options=['--build-tool=ninja', '--'] + win_clang_tests,
     factory_properties={
       'asan': True,
       'gclient_env': {
         'GYP_DEFINES': 'clang=1 asan=1 component=static_library disable_nacl=1',
+        'LLVM_WIN_REVISION': 'HEAD',
     }})
 
 f_chromium_win_ninja_shared_2013_dbg = win_out().ChromiumFactory(
     slave_type='BuilderTester',
     options=['--build-tool=ninja', 'chromium_builder_tests'],
     tests=tests_win_1,
     target='Debug',
     factory_properties={
         'gclient_env': {
           'GYP_DEFINES': 'component=shared_library fastbuild=1',
@@ skipping 1389 matching lines @@
 
 c['status'].append(MailNotifier(
       fromaddr='ukai@chromium.org',  # Reply-To address
       mode='failing',
       categories=['goma'],
       relayhost=config.Master.smtp,
       subject='goma canary buildbot %(result)s in %(projectName)s '
               'on %(builder)s',
       extraRecipients=['goma+alert@google.com'],
       sendToInterestedUsers=False))