Add rasterize_and_record_micro.fast_path_gpu_rasterization.key_silk_cases benchmark

tools/perf/benchmarks/rasterize_and_record_micro.py

Index: tools/perf/benchmarks/rasterize_and_record_micro.py
diff --git a/tools/perf/benchmarks/rasterize_and_record_micro.py b/tools/perf/benchmarks/rasterize_and_record_micro.py
index 651a12911d5121fb91cdc14409b40abf2fd07a6e..21008e60df3a8d3743af1e5a49c0a10a29b622df 100644
--- a/tools/perf/benchmarks/rasterize_and_record_micro.py
+++ b/tools/perf/benchmarks/rasterize_and_record_micro.py
@@ -48,3 +48,18 @@ class RasterizeAndRecordMicroFastPathKeySilkCases(test.Test):
   page_set = 'page_sets/key_silk_cases.py'
   def CustomizeBrowserOptions(self, options):
     silk_flags.CustomizeBrowserOptionsForFastPath(options)
+
+
+@test.Disabled('mac', 'win')
+class RasterizeAndRecordMicroFastPathGpuRasterizationKeySilkCases(test.Test):
+  """Measures rasterize and record performance on the silk sites.
+
+  Uses GPU rasterization together with bleeding edge rendering fast paths.
+
+  http://www.chromium.org/developers/design-documents/rendering-benchmarks"""
+  tag = 'fast_path_gpu_rasterization'
+  test = rasterize_and_record_micro.RasterizeAndRecordMicro
+  page_set = 'page_sets/key_silk_cases.py'
+  def CustomizeBrowserOptions(self, options):
+    silk_flags.CustomizeBrowserOptionsForFastPath(options)
+    silk_flags.CustomizeBrowserOptionsForGpuRasterization(options)