Disable page_cycler.typical_25 on windows, and session_restore.cold.typical_25 on linux.

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 sys
+
 from telemetry import test
 
 from measurements import session_restore
 
 
 class SessionRestoreColdTypical25(test.Test):
+  # crbug.com/325479: Disabling this test for now since it never ran before.
+  enabled = not sys.platform.startswith('linux')
   tag = 'cold'
   test = session_restore.SessionRestore
   page_set = 'page_sets/typical_25.json'
   options = {'cold': True,
              'pageset_repeat_iters': 5}
 
 
 class SessionRestoreWarmTypical25(test.Test):
   tag = 'warm'
   test = session_restore.SessionRestore
   page_set = 'page_sets/typical_25.json'
   options = {'warm': True,
              'pageset_repeat_iters': 20}