cc: Don't add new tilings while syncing a tiling.

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.
 
 from telemetry import test
 
 from benchmarks import silk_flags
 from measurements import smoothness
 import page_sets
 
@@ skipping 97 matching lines @@
   """
   tag = 'fast_path_gpu_rasterization'
   test = smoothness.Smoothness
   page_set = page_sets.KeySilkCasesPageSet
   def CustomizeBrowserOptions(self, options):
     super(SmoothnessFastPathGpuRasterizationKeySilkCases, self). \
         CustomizeBrowserOptions(options)
     silk_flags.CustomizeBrowserOptionsForFastPath(options)
 
 
-@test.Disabled  # crbug.com/384730
+@test.Enabled('android')
 class SmoothnessToughPinchZoomCases(test.Test):
   """Measures rendering statistics for pinch-zooming into the tough pinch zoom
   cases
   """
   test = smoothness.Smoothness
   page_set = page_sets.ToughPinchZoomCasesPageSet
 
 
 @test.Disabled  # crbug.com/370725
 class SmoothnessPolymer(test.Test):
@@ skipping 32 matching lines @@
   """Measures rendering statistics for the Polymer cases with GPU rasterization
   using bleeding edge rendering fast paths.
   """
   tag = 'fast_path_gpu_rasterization'
   test = smoothness.Smoothness
   page_set = page_sets.PolymerPageSet
   def CustomizeBrowserOptions(self, options):
     super(SmoothnessFastPathGpuRasterizationPolymer, self). \
         CustomizeBrowserOptions(options)
     silk_flags.CustomizeBrowserOptionsForFastPath(options)