telemetry: Use trace categories to configure synthetic delays

tools/perf/benchmarks/scheduler.py

Index: tools/perf/benchmarks/scheduler.py
diff --git a/tools/perf/benchmarks/scheduler.py b/tools/perf/benchmarks/scheduler.py
new file mode 100644
index 0000000000000000000000000000000000000000..198e48c1afaf26f8f08130dd1fec605be40d2a4d
--- /dev/null
+++ b/tools/perf/benchmarks/scheduler.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2014 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 telemetry import test
+from measurements import smoothness
+
+
+class SchedulerToughSchedulingCases(test.Test):
+  """Measures rendering statistics while interacting with pages that have
+  challenging scheduling properties.
+
+  https://docs.google.com/a/chromium.org/document/d/
+      17yhE5Po9By0sCdM1yZT3LiUECaUr_94rQt9j-4tOQIM/view"""
+  test = smoothness.Smoothness
+  page_set = 'page_sets/tough_scheduling_cases.json'
+