Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of dtu@google.com

smoothness.top_25_smooth/http://www.youtube.com in smoothness.top_25_smooth failing on multiple builders

Builders failed on: 
- Mac 10.12 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%2010.12%20Perf
- Mac Pro 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Pro%2010.11%20Perf