Add support for smoothness in cluster telemetry.

Bug: 778749
Change-Id: I34f85b22f6b292c05820cf010471d8fb9f861e3b
Reviewed-on: https://chromium-review.googlesource.com/789412Reviewed-by: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Ravi Mistry <rmistry@chromium.org>
Reviewed-by: Victor Miura <vmiura@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#520831}

tools/perf/contrib/cluster_telemetry/smoothness_ct.py

+# Copyright 2017 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 contrib.cluster_telemetry import ct_benchmarks_util
+from contrib.cluster_telemetry import page_set
+
+from core import perf_benchmark
+from measurements import smoothness
+
+def ScrollToEndOfPage(action_runner):
+  action_runner.Wait(1)
+  with action_runner.CreateGestureInteraction('ScrollAction'):
+    action_runner.ScrollPage()
+
+
+class SmoothnessCT(perf_benchmark.PerfBenchmark):
+  """Measures smoothness performance for Cluster Telemetry."""
+
+  test = smoothness.Smoothness
+
+  @classmethod
+  def Name(cls):
+    return 'smoothness_ct'
+
+  @classmethod
+  def AddBenchmarkCommandLineArgs(cls, parser):
+    ct_benchmarks_util.AddBenchmarkCommandLineArgs(parser)
+
+  @classmethod
+  def ProcessCommandLineArgs(cls, parser, args):
+    ct_benchmarks_util.ValidateCommandLineArgs(parser, args)
+
+  def CreateStorySet(self, options):
+    return page_set.CTPageSet(
+        options.urls_list, options.user_agent, options.archive_data_file,
+        run_page_interaction_callback=ScrollToEndOfPage)

tools/perf/validate_wpr_archives

@@ -21,6 +21,7 @@ def GetAllStorySets():
   benchmarks_to_skip = [
       'skpicture_printer_ct',
       'screenshot_ct',
+      'smoothness_ct',
       'repaint_ct',
       'rasterize_and_record_micro_ct',
       'multipage_skpicture_printer_ct',