Fix the parsing for instrumentation result, some Java exceptions are not reported right now

  run_load_test_cmd = run_load_test_cmd_prefix + " -e class com.android.dumprendertree.LoadTestsAutoTest#runPageCyclerTest -e path \"" + path + "\" -e timeout " + timeout_ms + run_load_test_cmd_postfix

  (adb_output, adb_error) = subprocess.Popen(run_load_test_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()

  if adb_output.find('INSTRUMENTATION_FAILED') != -1 or \

      adb_output.find('Process crashed.') != -1:

  fail_flag = False

  for line in adb_output.splitlines():

    line = line.strip()

    if line.find('INSTRUMENTATION_CODE') == 0:

      if not line[22:] == '-1':

        fail_flag = True

        break

    if (line.find('INSTRUMENTATION_FAILED') != -1 or

        line.find('Process crashed.') != -1):

      fail_flag = True

      break

  if fail_flag:

    logging.error("Error happened : " + adb_output)

    sys.exit(1)

  shell_cmd_str = adb_cmd + " pull " + result_file + " " + results_dir

  adb_output = subprocess.Popen(shell_cmd_str, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0]

  logging.info(adb_output)

  logging.info("Results are stored under: " + results_dir + "/load_test_result.txt\n")

if '__main__' == __name__: