Revert of Re-enable key silk case benchmarks on Android

tools/perf/benchmarks/smoothness.py

Index: tools/perf/benchmarks/smoothness.py
diff --git a/tools/perf/benchmarks/smoothness.py b/tools/perf/benchmarks/smoothness.py
index 341efa4862e472b1a26de3175abedb6351232e02..292ed604ac2e359a661baa4b9d72eb97948aa863 100644
--- a/tools/perf/benchmarks/smoothness.py
+++ b/tools/perf/benchmarks/smoothness.py
@@ -46,6 +46,7 @@
   page_set = 'page_sets/tough_animation_cases.py'
 
 
+@test.Disabled('android')  # crbug.com/355952
 class SmoothnessKeySilkCases(test.Test):
   """Measures rendering statistics for the key silk cases without GPU
   rasterization
@@ -54,6 +55,7 @@
   page_set = 'page_sets/key_silk_cases.py'
 
 
+@test.Disabled('android')  # crbug.com/355952
 class SmoothnessFastPathKeySilkCases(test.Test):
   """Measures rendering statistics for the key silk cases without GPU
   rasterization using bleeding edge rendering fast paths.
@@ -88,6 +90,7 @@
     silk_flags.CustomizeBrowserOptionsForGpuRasterization(options)
 
 
+@test.Disabled('android')  # crbug.com/355952
 class SmoothnessGpuRasterizationKeySilkCases(test.Test):
   """Measures rendering statistics for the key silk cases with GPU rasterization
   """
@@ -98,6 +101,7 @@
     silk_flags.CustomizeBrowserOptionsForGpuRasterization(options)
 
 
+@test.Disabled('android')  # crbug.com/355952
 class SmoothnessFastPathGpuRasterizationKeySilkCases(
     SmoothnessGpuRasterizationKeySilkCases):
   """Measures rendering statistics for the key silk cases with GPU rasterization