Add a 4k 60 fps vp9 smpte bars video to telemetry tests.

tools/perf/page_sets/tough_video_cases.py

 # Copyright 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.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class ToughVideoCasesPage(page_module.Page):
 
   def __init__(self, url, page_set, labels=None):
@@ skipping 467 matching lines @@
   def __init__(self, page_set):
     super(Page35, self).__init__(
       url='file://tough_video_cases/video.html?src=crowd720_vp9.webm',
       page_set=page_set)
 
     self.skip_basic_metrics = True
 
   def RunPageInteractions(self, action_runner):
     self.SeekBeforeAndAfterPlayhead(action_runner)
 
+class Page36(ToughVideoCasesPage):
+
+  def __init__(self, page_set):
+    super(Page36, self).__init__(
+      url=('file://tough_video_cases/video.html?src='
+           'smpte_3840x2160_60fps_vp9.webm'),
+      page_set=page_set)
+
+    self.add_browser_metrics = True
+
+  def RunPageInteractions(self, action_runner):
+    self.SeekBeforeAndAfterPlayhead(action_runner)
+
 class ToughVideoCasesPageSet(page_set_module.PageSet):
 
   """
   Description: Video Stack Perf benchmark
   """
   def __init__(self):
     super(ToughVideoCasesPageSet, self).__init__(
             bucket=page_set_module.PARTNER_BUCKET)
 
     self.AddUserStory(Page1(self))
@@ skipping 24 matching lines @@
     self.AddUserStory(Page26(self))
     self.AddUserStory(Page27(self))
     self.AddUserStory(Page28(self))
     self.AddUserStory(Page29(self))
     self.AddUserStory(Page30(self))
     self.AddUserStory(Page31(self))
     self.AddUserStory(Page32(self))
     self.AddUserStory(Page33(self))
     self.AddUserStory(Page34(self))
     self.AddUserStory(Page35(self))
+    self.AddUserStory(Page36(self))