Telemetry: Remove the class ProfileCreator.

tools/perf/profile_creators/large_profile_extender.py

 # Copyright 2014 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.
 
 from profile_creators import cookie_profile_extender
 from profile_creators import history_profile_extender
-from profile_creators import profile_creator
+from profile_creators import profile_extender
 
-class LargeProfileCreator(profile_creator.ProfileCreator):
+class LargeProfileExtender(profile_extender.ProfileExtender):
   """This class creates a large profile by performing a large number of url
   navigations."""
   def Run(self, options):
     extender = history_profile_extender.HistoryProfileExtender()
     extender.Run(options)
 
     extender = cookie_profile_extender.CookieProfileExtender()
     extender.Run(options)