[Android] Fix new pylint errors in build/android/.

build/android/pylib/gtest/test_runner.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import os
 import re
 
 from pylib import pexpect
 from pylib import ports
@@ skipping 60 matching lines @@
 
     Args:
       p: An instance of pexpect spawn class.
 
     Returns:
       A TestRunResults object.
     """
     results = base_test_result.TestRunResults()
 
     # Test case statuses.
-    re_run = re.compile('\[ RUN      \] ?(.*)\r\n')
-    re_fail = re.compile('\[  FAILED  \] ?(.*?)( \((\d+) ms\))?\r\r\n')
-    re_ok = re.compile('\[       OK \] ?(.*?)( \((\d+) ms\))?\r\r\n')
+    re_run = re.compile('\\[ RUN      \\] ?(.*)\r\n')
+    re_fail = re.compile('\\[  FAILED  \\] ?(.*?)( \\((\\d+) ms\\))?\r\r\n')
+    re_ok = re.compile('\\[       OK \\] ?(.*?)( \\((\\d+) ms\\))?\r\r\n')
 
     # Test run statuses.
-    re_passed = re.compile('\[  PASSED  \] ?(.*)\r\n')
-    re_runner_fail = re.compile('\[ RUNNER_FAILED \] ?(.*)\r\n')
+    re_passed = re.compile('\\[  PASSED  \\] ?(.*)\r\n')
+    re_runner_fail = re.compile('\\[ RUNNER_FAILED \\] ?(.*)\r\n')
     # Signal handlers are installed before starting tests
     # to output the CRASHED marker when a crash happens.
-    re_crash = re.compile('\[ CRASHED      \](.*)\r\n')
+    re_crash = re.compile('\\[ CRASHED      \\](.*)\r\n')
 
     log = ''
     try:
       while True:
         full_test_name = None
 
         found = p.expect([re_run, re_passed, re_runner_fail],
                          timeout=self._timeout)
         if found == 1:  # re_passed
           break
@@ skipping 86 matching lines @@
   #override
   def TearDown(self):
     """Cleans up the test enviroment for the test suite."""
     for s in self._servers:
       s.TearDown()
     if _TestSuiteRequiresHighPerfMode(self.test_package.suite_name):
       self._perf_controller.SetDefaultPerfMode()
     self.test_package.ClearApplicationState(self.device)
     self.tool.CleanUpEnvironment()
     super(TestRunner, self).TearDown()