android bb: Stop passing --buildtool=ninja

build/android/buildbot/bb_host_steps.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.
 
 import os
 import json
 import sys
 
 import bb_utils
@@ skipping 52 matching lines @@
 
 def Compile(options):
   if options.run_mb:
     os.environ['GYP_CHROMIUM_NO_ACTION'] = '1'
     RunHooks(options.target)
     GenerateBuildFiles(options)
   else:
     RunHooks(options.target)
 
   cmd = [os.path.join(SLAVE_SCRIPTS_DIR, 'compile.py'),
-         '--build-tool=ninja',
          '--compiler=goma',
          '--target=%s' % options.target,
          '--goma-dir=%s' % bb_utils.GOMA_DIR]
   bb_annotations.PrintNamedStep('compile')
   if options.build_targets:
     build_targets = options.build_targets.split(',')
     cmd += ['--build-args', ' '.join(build_targets)]
   RunCmd(cmd, halt_on_failure=True, cwd=DIR_BUILD_ROOT)
 
 
@@ skipping 59 matching lines @@
   setattr(options, 'target', options.factory_properties.get('target', 'Debug'))
   setattr(options, 'extra_src',
           options.factory_properties.get('extra_src', ''))
 
   if options.steps:
     bb_utils.RunSteps(options.steps.split(','), GetHostStepCmds(), options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))