add more polymer tests

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 25dc6e6263af5edecc0f6885c7459295405a2be7..3e2a620af0b705bee0314a213a4008d136a7dee3 100644
--- a/tools/perf/benchmarks/smoothness.py
+++ b/tools/perf/benchmarks/smoothness.py
@@ -122,4 +122,39 @@ class SmoothnessPolymer(test.Test):
   """Measures rendering statistics for Polymer cases.
   """
   test = smoothness.Smoothness
-  page_set = 'page_sets/polymer.py'
+  page_set = 'page_sets/polymer.py'
+
+
+class SmoothnessFastPathPolymer(test.Test):
+  """Measures rendering statistics for the Polymer cases without GPU
+  rasterization using bleeding edge rendering fast paths.
+  """
+  tag = 'fast_path'
+  test = smoothness.Smoothness
+  page_set = 'page_sets/polymer.py'
+  def CustomizeBrowserOptions(self, options):
+    silk_flags.CustomizeBrowserOptionsForFastPath(options)
+
+
+class SmoothnessGpuRasterizationPolymer(test.Test):
+  """Measures rendering statistics for the Polymer cases with GPU rasterization
+  """
+  tag = 'gpu_rasterization'
+  test = smoothness.Smoothness
+  page_set = 'page_sets/polymer.py'
+  def CustomizeBrowserOptions(self, options):
+    silk_flags.CustomizeBrowserOptionsForGpuRasterization(options)
+
+
+class SmoothnessFastPathGpuRasterizationPolymer(
+    SmoothnessGpuRasterizationPolymer):
+  """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/polymer.py'
+  def CustomizeBrowserOptions(self, options):
+    super(SmoothnessFastPathGpuRasterizationPolymer, self). \
+        CustomizeBrowserOptions(options)
+    silk_flags.CustomizeBrowserOptionsForFastPath(options)