Reformat webkitpy.layout_tests w/ format-webkitpy.

Tools/Scripts/webkitpy/layout_tests/port/browser_test_driver.py

 # Copyright (C) 2014 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 14 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 from webkitpy.layout_tests.port import driver
 import time
 import shutil
 
 
 class BrowserTestDriver(driver.Driver):
+
     """Object for running print preview test(s) using browser_tests."""
+
     def __init__(self, port, worker_number, pixel_tests, no_timeout=False):
         """Invokes the constructor of driver.Driver."""
         super(BrowserTestDriver, self).__init__(port, worker_number, pixel_tests, no_timeout)
 
     def start(self, pixel_tests, per_test_args, deadline):
         """Same as Driver.start() however, it has an extra step. It waits for
         a path to a file to be used for stdin to be printed by the browser test.
         If a path is found by the deadline test test will open the file and
         assign it to the stdin of the process that is owned by this driver's
         server process.
@@ skipping 36 matching lines @@
         cmd.append('--run-manual')
         cmd.append('--single_process')
         cmd.extend(per_test_args)
         cmd.extend(self._port.get_option('additional_drt_flag', []))
         return cmd
 
     def stop(self):
         if self._server_process:
             self._server_process.write('QUIT')
         super(BrowserTestDriver, self).stop(self._port.driver_stop_timeout())