[chrome_remote_control] Add pylint to PRESUMMIT and fix lint

tools/chrome_remote_control/chrome_remote_control/inspector_backend.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 json
 import logging
 import socket
 
 from chrome_remote_control import websocket
 
 class InspectorException(Exception):
@@ skipping 27 matching lines @@
     logging.debug('got [%s]', data)
     if 'method' not in res:
       return
 
     mname = res['method']
     dot_pos = mname.find('.')
     domain_name = mname[:dot_pos]
     if domain_name in self._domain_handlers:
       try:
         self._domain_handlers[domain_name][0](res)
-      except:
+      except Exception:
         import traceback
         traceback.print_exc()
 
   def SendAndIgnoreResponse(self, req):
     req['id'] = self._next_request_id
     self._next_request_id += 1
     self._socket.send(json.dumps(req))
 
   def SyncRequest(self, req, timeout=60):
     # TODO(nduca): Listen to the timeout argument
     # pylint: disable=W0613
     # self._socket.settimeout(timeout)
     req['id'] = self._next_request_id
     self._next_request_id += 1
     self._socket.send(json.dumps(req))
 
     while True:
       data = self._socket.recv()
 
       res = json.loads(data)
       logging.debug('got [%s]', data)
       if 'method' in res:
         mname = res['method']
         dot_pos = mname.find('.')
         domain_name = mname[:dot_pos]
         if domain_name in self._domain_handlers:
           try:
             self._domain_handlers[domain_name][0](res)
-          except:
+          except Exception:
             import traceback
             traceback.print_exc()
         else:
           logging.debug('Unhandled inspector mesage: %s', data)
         continue
 
       if res['id'] != req['id']:
         logging.debug('Dropped reply: %s', json.dumps(res))
         continue
       return res
 
   def RegisterDomain(self,
       domain_name, notification_handler, will_close_handler):
     """Registers a given domain for handling notification methods.
 
     For example, given inspector_backend:
        def OnConsoleNotification(msg):
           if msg['method'] == 'Console.messageAdded':
              print msg['params']['message']
           return
        def OnConsoleClose(self):
           pass
        inspector_backend.RegisterDomain('Console',
                                         OnConsoleNotification, OnConsoleClose)
        """
     assert domain_name not in self._domain_handlers
     self._domain_handlers[domain_name] = (notification_handler,
                                           will_close_handler)