Retry tests on other bots if the device is unresponsive/offline

build/android/pylib/test_package_apk.py

Index: build/android/pylib/test_package_apk.py
diff --git a/build/android/pylib/test_package_apk.py b/build/android/pylib/test_package_apk.py
index 42b9ade68b33a506b3dc80fec29945b8f1706d63..598f5131cc0016e8a58c43a64a9bf18a2bf66e90 100644
--- a/build/android/pylib/test_package_apk.py
+++ b/build/android/pylib/test_package_apk.py
@@ -11,6 +11,7 @@ import time
 
 import android_commands
 import constants
+from android_commands import errors
 from test_package import TestPackage
 from pylib import pexpect
 
@@ -65,7 +66,8 @@ class TestPackageApk(TestPackage):
         break
       time.sleep(i)
     else:
-      raise Exception('Unable to find fifo on device %s ' % self._GetFifo())
+      raise errors.DeviceUnresponsiveError(
+          'Unable to find fifo on device %s ' % self._GetFifo())
     args = shlex.split(self.adb.Adb()._target_arg)
     args += ['shell', 'cat', self._GetFifo()]
     return pexpect.spawn('adb', args, timeout=timeout, logfile=logfile)