smoothness.top_25_smooth failing on chromium.perf/Mac 10.11 Perf

Builders failed on: 
- Mac 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%2010.11%20Perf

https://chromium-swarm.appspot.com/task?id=37bf9c0ef4917310&refresh=10&show_raw=1

Wikipedia story failed. Looks like chrome crashed, according to the screenshot (https://console.developers.google.com/m/cloudstorage/b/chrome-telemetry-output/o/profiler-file-id_11-2017-08-03_01-54-5216006.png)

Probably will disable the story.