Add buildbot metadata to compiler_proxy log

scripts/slave/compile.py

 #!/usr/bin/env 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.
 
 """A tool to build chrome, executed by buildbot.
 
   When this is run, the current directory (cwd) should be the outer build
   directory (e.g., chrome-release/build/).
 
@@ skipping 84 matching lines @@
 
   # If goma compiler_proxy crashes, there could be crash dump.
   if options.build_data_dir:
     env['GOMACTL_CRASH_REPORT_ID_FILE'] = os.path.join(options.build_data_dir,
                                                        'crash_report_id_file')
   # We must stop the proxy to dump GomaStats.
   chromium_utils.RunCommand(goma_ctl_cmd + ['stop'], env=env)
   override_gsutil = None
   if options.gsutil_py_path:
     override_gsutil = [sys.executable, options.gsutil_py_path]
-  goma_utils.UploadGomaCompilerProxyInfo(override_gsutil=override_gsutil)
+  goma_utils.UploadGomaCompilerProxyInfo(override_gsutil=override_gsutil,
+                                         builder=options.buildbot_buildername,
+                                         master=options.buildbot_mastername,
+                                         slave=options.buildbot_slavename,
+                                         clobber=options.buildbot_clobber)
 
   # Upload GomaStats to make it monitored.
   if env.get('GOMA_DUMP_STATS_FILE'):
     goma_utils.SendGomaStats(env['GOMA_DUMP_STATS_FILE'],
                              env.get('GOMACTL_CRASH_REPORT_ID_FILE'),
                              options.build_data_dir)
 
 # TODO(tikuta): move to goma_utils.py
 def goma_setup(options, env):
   """Sets up goma if necessary.
@@ skipping 434 matching lines @@
   exit_status = main_ninja(options, args, env)
 
   # stop goma
   goma_teardown(options, env, exit_status, goma_cloudtail)
 
   return exit_status
 
 
 if '__main__' == __name__:
   sys.exit(real_main())