system_health.common_desktop failing on chromium.perf/Mac 10.12 Perf

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

Not much interesting in the logs as far as I can tell
https://chromium-swarm.appspot.com/task?id=391eb44594393c10&refresh=10&show_raw=1
TimeoutException: Timed out while waiting 60s for IsJavaScriptExpressionTrue.

Looks like the full page just isn't loading: https://console.developers.google.com/m/cloudstorage/b/chrome-telemetry-output/o/profiler-file-id_11-2017-10-10_06-47-5830370.png

Since it's failing pretty consistently on mac 10.12 at this point, I'll disable it: https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=system_health.common_desktop%2Fbrowse%3Atools%3Amaps&testType=system_health.common_desktop