Adding support for diagonal scrolling to telemetry.

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 add512d33713565d82bbe4c734f7f58c221c70a3..040fcdfe02b7b3856d28a5d93c67bc03f7167542 100644
--- a/tools/perf/benchmarks/smoothness.py
+++ b/tools/perf/benchmarks/smoothness.py
@@ -180,6 +180,18 @@ class SmoothnessToughPinchZoomCases(benchmark.Benchmark):
     return 'smoothness.tough_pinch_zoom_cases'
 
 
+@benchmark.Enabled('android', 'chromeos')
+class SmoothnessToughPinchZoomDiagonalScrollingCases(benchmark.Benchmark):
+  """Measures rendering statistics for pinch-zooming followed by diagonal
+  scrolling """
+  test = smoothness.Smoothness
+  page_set = page_sets.ToughPinchZoomDiagonalScrollingCasesPageSet
+
+  @classmethod
+  def Name(cls):
+    return 'smoothness.tough_pinch_zoom_diagonal_scrolling_cases'
+
+
 @benchmark.Enabled('android')
 class SmoothnessPolymer(benchmark.Benchmark):
   """Measures rendering statistics for Polymer cases.