(Reland) Use logdog butler subcommand to run tests.

build/android/pylib/local/device/local_device_instrumentation_test_run.py

Index: build/android/pylib/local/device/local_device_instrumentation_test_run.py
diff --git a/build/android/pylib/local/device/local_device_instrumentation_test_run.py b/build/android/pylib/local/device/local_device_instrumentation_test_run.py
index 1cc82f961405df3dcc7533a7ff1551c743fca76d..91234270d0db7bd347948808aeba36f41833d7f7 100644
--- a/build/android/pylib/local/device/local_device_instrumentation_test_run.py
+++ b/build/android/pylib/local/device/local_device_instrumentation_test_run.py
@@ -35,6 +35,9 @@ TIMEOUT_ANNOTATIONS = [
   ('SmallTest', 1 * 60),
 ]
 
+LOGCAT_FILTERS = ['*:e', 'chromium:v', 'cr_chromium:v',

[jbudorick, 2017/03/20 22:31:19]

I think we can just take 'cr_*:v' rather than the list of cr_ filter specs you
have here, some of which are very specific to the linker tests.

[BigBossZhiling, 2017/03/20 22:37:13]

Done.

+                  'cr_ChromiumAndroidLinker:v', 'cr_LibraryLoader:v',
+                  'cr_LinkerTest:v']
 
 # TODO(jbudorick): Make this private once the instrumentation test_runner is
 # deprecated.
@@ -291,7 +294,8 @@ class LocalDeviceInstrumentationTestRun(
           time.strftime('%Y%m%dT%H%M%S', time.localtime()),
           device.serial)
       logmon = logdog_logcat_monitor.LogdogLogcatMonitor(
-          device.adb, stream_name)
+          device.adb, stream_name, filter_specs=LOGCAT_FILTERS)
+
       with contextlib_ext.Optional(
           logmon, self._test_instance.should_save_logcat):
         with contextlib_ext.Optional(