Reformat webkitpy.layout_tests w/ format-webkitpy.

Tools/Scripts/webkitpy/layout_tests/servers/server_base.py

Index: Tools/Scripts/webkitpy/layout_tests/servers/server_base.py
diff --git a/Tools/Scripts/webkitpy/layout_tests/servers/server_base.py b/Tools/Scripts/webkitpy/layout_tests/servers/server_base.py
index 1d6a3e1138acf6b5700861b71c0977076879dba1..1746c81030ff66fb7512588866928d836f9a3e49 100644
--- a/Tools/Scripts/webkitpy/layout_tests/servers/server_base.py
+++ b/Tools/Scripts/webkitpy/layout_tests/servers/server_base.py
@@ -43,6 +43,7 @@ class ServerError(Exception):
 
 
 class ServerBase(object):
+
     """A skeleton class for starting and stopping servers used by the layout tests."""
 
     def __init__(self, port_obj, output_dir):
@@ -60,7 +61,7 @@ class ServerBase(object):
         if self._platform.is_mac():
             tmpdir = '/tmp'
 
-        self._runtime_path = self._filesystem.join(tmpdir, "WebKit")
+        self._runtime_path = self._filesystem.join(tmpdir, 'WebKit')
         self._filesystem.maybe_make_directory(self._runtime_path)
 
         # Subclasses must override these fields.
@@ -102,7 +103,7 @@ class ServerBase(object):
         self._pid = self._spawn_process()
 
         if self._wait_for_action(self._is_server_running_on_all_ports):
-            _log.debug("%s successfully started (pid = %d)" % (self._name, self._pid))
+            _log.debug('%s successfully started (pid = %d)' % (self._name, self._pid))
         else:
             self._log_errors_from_subprocess()
             self._stop_running_server()
@@ -129,15 +130,15 @@ class ServerBase(object):
                 return
             if self._pid != actual_pid:
                 _log.warning('Failed to stop %s: pid file contains %d, not %d' %
-                            (self._name, actual_pid, self._pid))
+                             (self._name, actual_pid, self._pid))
                 # Try to kill the existing pid, anyway, in case it got orphaned.
                 self._executive.kill_process(self._pid)
                 self._pid = None
                 return
 
-            _log.debug("Attempting to shut down %s server at pid %d" % (self._name, self._pid))
+            _log.debug('Attempting to shut down %s server at pid %d' % (self._name, self._pid))
             self._stop_running_server()
-            _log.debug("%s server at pid %d stopped" % (self._name, self._pid))
+            _log.debug('%s server at pid %d stopped' % (self._name, self._pid))
             self._pid = None
         finally:
             # Make sure we delete the pid file no matter what happens.
@@ -157,7 +158,7 @@ class ServerBase(object):
         for log_prefix in self._log_prefixes:
             try:
                 self._remove_log_files(self._output_dir, log_prefix)
-            except OSError, e:
+            except OSError as e:
                 _log.warning('Failed to remove old %s %s files' % (self._name, log_prefix))
 
     def _spawn_process(self):
@@ -229,7 +230,7 @@ class ServerBase(object):
         while time.time() - start_time < wait_secs:
             if action():
                 return True
-            _log.debug("Waiting for action: %s" % action)
+            _log.debug('Waiting for action: %s' % action)
             time.sleep(sleep_secs)
 
         return False
@@ -241,18 +242,18 @@ class ServerBase(object):
         if not self._platform.is_win() and not self._executive.check_running_pid(self._pid):
             _log.debug("Server isn't running at all")
             self._log_errors_from_subprocess()
-            raise ServerError("Server exited")
+            raise ServerError('Server exited')
 
         for mapping in self._mappings:
             s = socket.socket()
             port = mapping['port']
             try:
                 s.connect(('localhost', port))
-                _log.debug("Server running on %d" % port)
-            except IOError, e:
+                _log.debug('Server running on %d' % port)
+            except IOError as e:
                 if e.errno not in (errno.ECONNREFUSED, errno.ECONNRESET):
                     raise
-                _log.debug("Server NOT running on %d: %s" % (port, e))
+                _log.debug('Server NOT running on %d: %s' % (port, e))
                 return False
             finally:
                 s.close()
@@ -266,7 +267,7 @@ class ServerBase(object):
             port = mapping['port']
             try:
                 s.bind(('localhost', port))
-            except IOError, e:
+            except IOError as e:
                 if e.errno in (errno.EALREADY, errno.EADDRINUSE):
                     raise ServerError('Port %d is already in use.' % port)
                 elif self._platform.is_win() and e.errno in (errno.WSAEACCES,):  # pylint: disable=E1101