Revert of [Android][Telemetry] Disable failing key_mobile_sites benchmarks.

tools/perf/benchmarks/smoothness.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 multiprocessing
 
 from core import perf_benchmark
 
 from benchmarks import silk_flags
 from measurements import smoothness
 import page_sets
@@ skipping 135 matching lines @@
   @classmethod
   def Name(cls):
     return 'smoothness.key_desktop_move_cases'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):  # http://crbug.com/597656
       return (possible_browser.browser_type == 'reference' and
               possible_browser.platform.GetOSName() == 'win')
 
 
-@benchmark.Disabled('all') # crbug.com/702194
-#@benchmark.Enabled('android')
+@benchmark.Enabled('android')
 @benchmark.Owner(emails=['vmiura@chromium.org', 'tdresser@chromium.org'])
 class SmoothnessKeyMobileSites(_Smoothness):
   """Measures rendering statistics while scrolling down the key mobile sites.
 
   http://www.chromium.org/developers/design-documents/rendering-benchmarks
   """
   page_set = page_sets.KeyMobileSitesSmoothPageSet
 
   @classmethod
   def Name(cls):
@@ skipping 102 matching lines @@
   @classmethod
   def Name(cls):
     return 'smoothness.gpu_rasterization.tough_filters_cases'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):  # http://crbug.com/616540
     return (cls.IsSvelte(possible_browser) and
             possible_browser.browser_type == 'reference')
 
 
-@benchmark.Disabled('all') # crbug.com/702194
-#@benchmark.Enabled('android')
+@benchmark.Enabled('android')
 @benchmark.Owner(emails=['tdresser@chromium.org', 'rbyers@chromium.org'])
 class SmoothnessSyncScrollKeyMobileSites(_Smoothness):
   """Measures rendering statistics for the key mobile sites with synchronous
   (main thread) scrolling.
   """
   tag = 'sync_scroll'
   page_set = page_sets.KeyMobileSitesSmoothPageSet
 
   def SetExtraBrowserOptions(self, options):
     silk_flags.CustomizeBrowserOptionsForSyncScrolling(options)
@@ skipping 245 matching lines @@
   """Measures rendering statistics while scrolling advertisements."""
   page_set = page_sets.SyntheticToughWebglAdCasesPageSet
 
   @classmethod
   def Name(cls):
     return 'smoothness.tough_webgl_ad_cases'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):
     return cls.IsSvelte(possible_browser)  # http://crbug.com/574485