[chrome_remote_control] Add pylint to PRESUMMIT and fix lint

tools/chrome_remote_control/chrome_remote_control/__init__.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.
 """A library for chrome-based tests.
 
 """
-from chrome_remote_control.browser_finder import *
-from chrome_remote_control.browser_options import *
-from chrome_remote_control.browser import *
-from chrome_remote_control.tab import *
-from chrome_remote_control.util import *
+from chrome_remote_control.browser_finder import FindBrowser
+from chrome_remote_control.browser_finder import GetAllAvailableBrowserTypes
+from chrome_remote_control.browser_options import BrowserOptions
+from chrome_remote_control.browser import Browser
+from chrome_remote_control.tab import Tab
+from chrome_remote_control.util import TimeoutException, WaitFor
 
 def CreateBrowser(browser_type):
   """Shorthand way to create a browser of a given type
 
   However, note that the preferred way to create a browser is:
      options = BrowserOptions()
      _, leftover_args, = options.CreateParser().parse_args()
      browser_to_create = FindBrowser(options)
      return browser_to_create.Create()
 
   as it creates more opportunities for customization and
   error handling."""
   browser_to_create = FindBrowser(BrowserOptions(browser_type))
   if not browser_to_create:
     raise Exception('No browser of type %s found' % browser_type)
   return browser_to_create.Create()