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

NOTRY=true
BUG=273986, 325479

Review URL: https://codereview.chromium.org/103153002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238516 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/benchmarks/page_cycler.py

 # Copyright (c) 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 page_cycler
@@ -103,6 +105,8 @@ class PageCyclerToughLayoutCases(test.Test):
 
 
 class PageCyclerTypical25(test.Test):
+  # crbug.com/273986: This test is really flakey on xp.
+  enabled = not sys.platform.startswith('win')
   test = page_cycler.PageCycler
   page_set = 'page_sets/typical_25.json'
   options = {'pageset_repeat_iters': 10}

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'