Speculatively clobber Mac after "Switch Mac Intel GPU bots to 10.12 from 10.10"

build/get_landmines.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """
 This file emits the list of reasons why a particular build needs to be clobbered
 (or a list of 'landmines').
 """
 
 import sys
 
 import landmine_utils
 
 
 distributor = landmine_utils.distributor
 gyp_defines = landmine_utils.gyp_defines
 gyp_msvs_version = landmine_utils.gyp_msvs_version
 platform = landmine_utils.platform
 
 
 def print_landmines():
   """
   ALL LANDMINES ARE EMITTED FROM HERE.
   """
   # DO NOT add landmines as part of a regular CL. Landmines are a last-effort

[Nico, 2017/03/02 18:27:46]

have you seen this comment? was there an investigation for the root cause for
why this clobber was necessary? why wasn't this reviewed?

   # bandaid fix if a CL that got landed has a build dependency bug and all bots
   # need to be cleaned up. If you're writing a new CL that causes build
   # dependency problems, fix the dependency problems instead of adding a
   # landmine.
 
   if distributor() == 'goma' and platform() == 'win32':
     print 'Need to clobber winja goma due to backend cwd cache fix.'
   if platform() == 'android':
     print 'Clobber: to handle new way of suppressing findbugs failures.'
     print 'Clobber to fix gyp not rename package name (crbug.com/457038)'
@@ skipping 26 matching lines @@
   if platform() == 'ios':
     print 'Clobber iOS to workaround Xcode deps bug (crbug.com/485435)'
   if platform() == 'win':
     print 'Clobber to delete stale generated files (crbug.com/510086)'
   if platform() == 'android' and gyp_defines().get('target_arch') == 'arm64':
     print 'Clobber to support new location/infra for chrome_sync_shell_apk'
   if platform() == 'mac':
     print 'Clobber to get rid of evil libsqlite3.dylib (crbug.com/526208)'
   if platform() == 'mac':
     print 'Clobber to remove libsystem.dylib. See crbug.com/620075'
+  if platform() == 'mac':
+    print 'Clobber to get past mojo gen build error (crbug.com/679607)'
 
 
 def main():
   print_landmines()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())