Remove seldom used tab_swtiching test cases

tools/perf/benchmarks/tab_switching.py

Index: tools/perf/benchmarks/tab_switching.py
diff --git a/tools/perf/benchmarks/tab_switching.py b/tools/perf/benchmarks/tab_switching.py
index 6962989cf54d46ac905afbc4b47f433169d80dff..ed75b503d7bf2c2423327bcf3cd9e18baf88f3a4 100644
--- a/tools/perf/benchmarks/tab_switching.py
+++ b/tools/perf/benchmarks/tab_switching.py
@@ -10,29 +10,6 @@ from telemetry import benchmark
 
 
 @benchmark.Enabled('has tabs')
-@benchmark.Disabled('android')  # http://crbug.com/460084
-@benchmark.Disabled('mac-reference')  # http://crbug.com/634378
-class TabSwitchingTop10(perf_benchmark.PerfBenchmark):
-  """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 10 pages in different
-  tabs, waits for them to load, and then switches to each tab and records the
-  metric. The pages were chosen from Alexa top ranking sites.
-  """
-  test = tab_switching.TabSwitching
-  page_set = page_sets.Top10PageSet
-
-  @classmethod
-  def Name(cls):
-    return 'tab_switching.top_10'
-
-  @classmethod
-  def ShouldTearDownStateAfterEachStoryRun(cls):
-    return False
-
-
-@benchmark.Enabled('has tabs')
 @benchmark.Disabled('mac-reference')  # http://crbug.com/612774
 @benchmark.Disabled('android')  # http://crbug.com/460084
 class TabSwitchingTypical25(perf_benchmark.PerfBenchmark):
@@ -55,74 +32,3 @@ class TabSwitchingTypical25(perf_benchmark.PerfBenchmark):
   @classmethod
   def ShouldTearDownStateAfterEachStoryRun(cls):
     return False
-
-
-@benchmark.Disabled('android')  # http://crbug.com/460084
-@benchmark.Disabled('mac-reference')  # http://crbug.com/634360
-@benchmark.Enabled('has tabs')
-class TabSwitchingFiveBlankTabs(perf_benchmark.PerfBenchmark):
-  """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
-  page_set = page_sets.FiveBlankPagesPageSet
-  options = {'pageset_repeat': 10}
-
-  @classmethod
-  def Name(cls):
-    return 'tab_switching.five_blank_pages'
-
-  @classmethod
-  def ShouldTearDownStateAfterEachStoryRun(cls):
-    return False
-
-
-@benchmark.Enabled('has tabs')
-# http://crbug.com/460084, http://crbug.com/488067, http://crbug.com/634347
-# win: http://crbug.com/677311
-@benchmark.Disabled('android', 'linux', 'mac-reference', 'win')
-class TabSwitchingToughEnergyCases(perf_benchmark.PerfBenchmark):
-  """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 each page in a
-  different tab, waits for them to load, and then switches to each tab and
-  records the metric. The pages were written by hand to stress energy usage.
-  """
-  test = tab_switching.TabSwitching
-  page_set = page_sets.ToughEnergyCasesPageSet
-  options = {'pageset_repeat': 10}
-
-  @classmethod
-  def Name(cls):
-    return 'tab_switching.tough_energy_cases'
-
-  @classmethod
-  def ShouldTearDownStateAfterEachStoryRun(cls):
-    return False
-
-
-@benchmark.Enabled('has tabs')
-@benchmark.Disabled('android')  # http://crbug.com/460084
-class TabSwitchingToughImageCases(perf_benchmark.PerfBenchmark):
-  """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 each page in different
-  tabs, waits for them to load, and then switches to each tab and records the
-  metric. The pages were chosen by hand to stress the image decoding system.
-  """
-  test = tab_switching.TabSwitching
-  page_set = page_sets.ToughImageCasesPageSet
-
-  @classmethod
-  def Name(cls):
-    return 'tab_switching.tough_image_cases'
-
-  @classmethod
-  def ShouldTearDownStateAfterEachStoryRun(cls):
-    return False