Bug 919353 - kill b2g process on device with SIGABRT on timeout, r=ted

testing/mozbase/mozrunner/mozrunner/remote.py

@@ -3,6 +3,7 @@ import os
 import posixpath
 import re
 import shutil
+import signal
 import subprocess
 import tempfile
 import time
@@ -198,6 +199,7 @@ class B2GRunner(RemoteRunner):
             msg = "%s with no output" % msg
 
         self.log.testFail(msg % (self.last_test, timeout))
+        self.dm.killProcess("/system/b2g/b2g", sig=signal.SIGABRT)
         self.check_for_crashes()
 
     def _reboot_device(self):