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

build/android/pylib/instrumentation/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.
 
 """Class for running instrumentation tests on a single device."""
 
 import logging
 import os
 import re
 import sys
@@ skipping 191 matching lines @@
   def _IsFreTest(self, test):
     """Determines whether a test is a first run experience test.
 
     Args:
       test: The name of the test to be checked.
 
     Returns:
       Whether the feature being tested is FirstRunExperience.
     """
     annotations = self.test_pkg.GetTestAnnotations(test)
-    return ('FirstRunExperience' == annotations.get('Feature', None))
+    return 'FirstRunExperience' == annotations.get('Feature', None)
 
   def _IsPerfTest(self, test):
     """Determines whether a test is a performance test.
 
     Args:
       test: The name of the test to be checked.
 
     Returns:
       Whether the test is annotated as a performance test.
     """
@@ skipping 46 matching lines @@
       test: The name of the test that was just run.
     Raises:
       Exception: if there's anything wrong with the perf data.
     """
     if not self._IsPerfTest(test):
       return
     raw_test_name = test.split('#')[1]
 
     # Wait and grab annotation data so we can figure out which traces to parse
     regex = self.device.old_interface.WaitForLogMatch(
-        re.compile('\*\*PERFANNOTATION\(' + raw_test_name + '\)\:(.*)'), None)
+        re.compile(r'\*\*PERFANNOTATION\(' + raw_test_name + r'\)\:(.*)'),
+        None)
 
     # If the test is set to run on a specific device type only (IE: only
     # tablet or phone) and it is being run on the wrong device, the test
     # just quits and does not do anything.  The java test harness will still
     # print the appropriate annotation for us, but will add --NORUN-- for
     # us so we know to ignore the results.
     # The --NORUN-- tag is managed by MainActivityTestBase.java
     if regex.group(1) != '--NORUN--':
 
       # Obtain the relevant perf data.  The data is dumped to a
@@ skipping 231 matching lines @@
     except device_errors.CommandTimeoutError as e:
       results.AddResult(test_result.InstrumentationTestResult(
           test, base_test_result.ResultType.TIMEOUT, start_ms, duration_ms,
           log=str(e) or 'No information'))
     except device_errors.DeviceUnreachableError as e:
       results.AddResult(test_result.InstrumentationTestResult(
           test, base_test_result.ResultType.CRASH, start_ms, duration_ms,
           log=str(e) or 'No information'))
     self.TestTeardown(test, results)
     return (results, None if results.DidRunPass() else test)