Logdog for logcats

tools/mb/mb.py

Index: tools/mb/mb.py
diff --git a/tools/mb/mb.py b/tools/mb/mb.py
index 3ee71030d0086462afe125bf4064fb3a4a160b00..34d3c5468f788d8f76489c94b1d6af34cedb4ee8 100755
--- a/tools/mb/mb.py
+++ b/tools/mb/mb.py
@@ -995,11 +995,23 @@ class MetaBuildWrapper(object):
     extra_files = []
 
     if android and test_type != "script":
+      logdog_command = [
+          './../../bin/logdog_butler',
+          '-project', 'chromium',
+          '-output', 'logdog,host=luci-logdog.appspot.com',
+          '-service-account-json',
+          '/creds/service_accounts/service-account-luci-logdog-publisher.json'
+      ]
+      stream_command = [
+          'stream', '-source', '${ISOLATED_OUTDIR}/logcats',
+      ]
       cmdline = [
           self.PathJoin('bin', 'run_%s' % target_name),
-          '--logcat-output-dir', '${ISOLATED_OUTDIR}/logcats',
+          '--logcat-output-file', '${ISOLATED_OUTDIR}/logcats',

[nicholaslin, 2016/07/20 03:04:13]

another option here would be to keep the logcat-output-dir and add a logdog
related argument argument 

           '--target-devices-file', '${SWARMING_BOT_FILE}',
-          '-v',
+          '--logdog-command', ' '.join(logdog_command),
+          '--logdog-stream', ' '.join(stream_command),
+          '-v'
       ]
     elif use_x11 and test_type == 'windowed_test_launcher':
       extra_files = [