Telemetry: Move ProfileCreator to tools/perf/profile_creator.

tools/perf/benchmarks/session_restore.py

 # Copyright 2013 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 os
 import tempfile
 
 from measurements import session_restore
 import page_sets
+from profile_creators import profile_generator
 from profile_creators import small_profile_creator
 from telemetry import benchmark
-from telemetry.page import profile_generator
 
 
 class _SessionRestoreTypical25(benchmark.Benchmark):
   """Base Benchmark class for session restore benchmarks.
 
   A cold start means none of the Chromium files are in the disk cache.
   A warm start assumes the OS has already cached much of Chromium's content.
   For warm tests, you should repeat the page set to ensure it's cached.
 
   Use Typical25PageSet to match what the SmallProfileCreator uses.
@@ skipping 68 matching lines @@
 
   The first result is discarded.
   """
   tag = 'warm'
   options = {'pageset_repeat': 20}
 
   @classmethod
   def Name(cls):
     return 'session_restore.warm.typical_25'