Disabled tab_switching.five_blank_pages on Mac until we can fix issues with histogram buckets

tools/perf/benchmarks/tab_switching.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.
 
 from telemetry import benchmark
 
 from measurements import tab_switching
 import page_sets
 
 
@@ skipping 26 matching lines @@
   test = tab_switching.TabSwitching
 
   def CreatePageSet(self, options):
     return page_sets.Typical25PageSet(make_pages_with_no_interactions=True)
 
   @classmethod
   def Name(cls):
     return 'tab_switching.typical_25'
 
 
+@benchmark.Disabled('mac')  # http://crbug.com/455349
 @benchmark.Enabled('has tabs')
 class TabSwitchingFiveBlankTabs(benchmark.Benchmark):
   """This test records the MPArch.RWH_TabSwitchPaintDuration histogram.
 
   The histogram is a measure of the time between when a tab was requested to be
   shown, and when first paint occurred. The script opens 5 blank pages in
   different tabs, waits for them to load, and then switches to each tab and
   records the metric. Blank pages are use to detect unnecessary idle wakeups.
   """
   test = tab_switching.TabSwitching
@@ skipping 25 matching lines @@
 
 @benchmark.Disabled  # Just for local testing, not on waterfall.
 class TabSwitchingFlashEnergyCases(benchmark.Benchmark):
   test = tab_switching.TabSwitching
   page_set = page_sets.FlashEnergyCasesPageSet
   options = {'pageset_repeat': 10}
   @classmethod
   def Name(cls):
     return 'tab_switching.flash_energy_cases'