Add step to show goma stat in goma module

scripts/slave/recipe_modules/goma/api.py

 # Copyright 2015 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 recipe_engine import recipe_api
 
 class GomaApi(recipe_api.RecipeApi):
   """GomaApi contains helper functions for using goma."""
 
   def __init__(self, **kwargs):
@@ skipping 167 matching lines @@
       StepFailure if it fails to stop goma or upload logs.
     """
 
     assert self._goma_dir
     assert self._goma_started
 
     with self.m.step.defer_results():
       self.m.python(name='goma_jsonstatus', script=self.goma_ctl,
                     args=['jsonstatus', self.json_path],
                     env=self._goma_ctl_env, **kwargs)
+      self.m.python(name='goma_stat', script=self.goma_ctl,
+                    args=['stat'],
+                    env=self._goma_ctl_env, **kwargs)
       self.m.python(name='stop_goma', script=self.goma_ctl,
                     args=['stop'], env=self._goma_ctl_env, **kwargs)
       self._upload_logs(ninja_log_outdir, ninja_log_compiler,
                        ninja_log_command, ninja_log_exit_status)
       self._stop_cloudtail()
 
     self._goma_started = False
     self._goma_ctl_env = {}
 
   def _upload_logs(self, ninja_log_outdir=None, ninja_log_compiler=None,
@@ skipping 39 matching lines @@
         ])
 
 
     self.m.python(
       name=name or 'upload_log',
       script=self.package_repo_resource(
           'scripts', 'slave', 'upload_goma_logs.py'),
       args=args,
       env=self._goma_ctl_env
     )