[chrome_remote_control] Add pylint to PRESUMMIT and fix lint

tools/chrome_remote_control/chrome_remote_control/browser_options_unittest.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 unittest
 
 from chrome_remote_control import browser_options
 
 class BrowserOptionsTest(unittest.TestCase):
   def testDefaults(self):
     options = browser_options.BrowserOptions()
     parser = options.CreateParser()
     parser.add_option('-x', action='store', default=3)
     parser.parse_args(['--browser', 'any'])
-    self.assertEquals(options.x, 3)
+    self.assertEquals(options.x, 3) # pylint: disable=E1101
 
   def testDefaultsPlusOverride(self):
     options = browser_options.BrowserOptions()
     parser = options.CreateParser()
     parser.add_option('-x', action='store', default=3)
     parser.parse_args(['--browser', 'any', '-x', 10])
-    self.assertEquals(options.x, 10)
+    self.assertEquals(options.x, 10) # pylint: disable=E1101
 
   def testDefaultsDontClobberPresetValue(self):
     options = browser_options.BrowserOptions()
     setattr(options, 'x', 7)
     parser = options.CreateParser()
     parser.add_option('-x', action='store', default=3)
     parser.parse_args(['--browser', 'any'])
-    self.assertEquals(options.x, 7)
+    self.assertEquals(options.x, 7) # pylint: disable=E1101
 
   def testCount0(self):
     options = browser_options.BrowserOptions()
     parser = options.CreateParser()
     parser.add_option('-x', action='count', dest='v')
     parser.parse_args(['--browser', 'any'])
-    self.assertEquals(options.v, None)
+    self.assertEquals(options.v, None) # pylint: disable=E1101
 
   def testCount2(self):
     options = browser_options.BrowserOptions()
     parser = options.CreateParser()
     parser.add_option('-x', action='count', dest='v')
     parser.parse_args(['--browser', 'any', '-xx'])
-    self.assertEquals(options.v, 2)
+    self.assertEquals(options.v, 2) # pylint: disable=E1101
 
   def testOptparseMutabilityWhenSpecified(self):
     options = browser_options.BrowserOptions()
     parser = options.CreateParser()
     parser.add_option('-x', dest='verbosity', action='store_true')
     options_ret, _ = parser.parse_args(['--browser', 'any', '-x'])
     self.assertEquals(options_ret, options)
     self.assertTrue(options.verbosity)
 
   def testOptparseMutabilityWhenNotSpecified(self):
     options = browser_options.BrowserOptions()
 
     parser = options.CreateParser()
     parser.add_option('-x', dest='verbosity', action='store_true')
     options_ret, _ = parser.parse_args(['--browser', 'any'])
     self.assertEquals(options_ret, options)
     self.assertFalse(options.verbosity)