Enable bleeding edge rendering fast paths for Silk benchmarks

tools/perf/benchmarks/smoothness.py

 # Copyright (c) 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 benchmarks import silk_flags
 from measurements import smoothness
 from telemetry import test
 
 
 class SmoothnessTop25(test.Test):
   """Measures rendering statistics while scrolling down the top 25 web pages.
 
   http://www.chromium.org/developers/design-documents/rendering-benchmarks"""
   test = smoothness.Smoothness
   page_set = 'page_sets/top_25.json'
@@ skipping 19 matching lines @@
 
 
 class SmoothnessKeySilkCases(test.Test):
   """Measures rendering statistics for the key silk cases without GPU
   rasterization
   """
   test = smoothness.Smoothness
   page_set = 'page_sets/key_silk_cases.json'
 
 
+class SmoothnessFastPathKeySilkCases(test.Test):
+  """Measures rendering statistics for the key silk cases without GPU
+  rasterization using bleeding edge rendering fast paths.
+  """
+  tag = 'fast_path'
+  test = smoothness.Smoothness
+  page_set = 'page_sets/key_silk_cases.json'
+  def CustomizeBrowserOptions(self, options):
+    silk_flags.CustomizeBrowserOptionsForFastPath(options)
+
+
 class SmoothnessGpuRasterizationTop25(test.Test):
   """Measures rendering statistics for the top 25 with GPU rasterization
   """
   tag = 'gpu_rasterization'
   test = smoothness.Smoothness
   page_set = 'page_sets/top_25.json'
   def CustomizeBrowserOptions(self, options):
     options.AppendExtraBrowserArgs('--enable-threaded-compositing')
     options.AppendExtraBrowserArgs('--force-compositing-mode')
     options.AppendExtraBrowserArgs('--enable-impl-side-painting')
@@ skipping 20 matching lines @@
   tag = 'gpu_rasterization'
   test = smoothness.Smoothness
   page_set = 'page_sets/key_silk_cases.json'
   def CustomizeBrowserOptions(self, options):
     options.AppendExtraBrowserArgs('--enable-threaded-compositing')
     options.AppendExtraBrowserArgs('--force-compositing-mode')
     options.AppendExtraBrowserArgs('--enable-impl-side-painting')
     options.AppendExtraBrowserArgs('--enable-gpu-rasterization')
 
 
+class SmoothnessFastPathGpuRasterizationKeySilkCases(
+    SmoothnessGpuRasterizationKeySilkCases):
+  """Measures rendering statistics for the key silk cases with GPU rasterization
+  using bleeding edge rendering fast paths.
+  """
+  tag = 'fast_path_gpu_rasterization'
+  test = smoothness.Smoothness
+  page_set = 'page_sets/key_silk_cases.json'
+  def CustomizeBrowserOptions(self, options):
+    super(SmoothnessFastPathGpuRasterizationKeySilkCases, self). \
+        CustomizeBrowserOptions(options)
+    silk_flags.CustomizeBrowserOptionsForFastPath(options)
+
+
 @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/tough_pinch_zoom_cases.json'