smoothness.gpu_rasterization.top_25_smooth failing on 6 builders

Builders failed on: 
- Android Nexus5X Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus5X%20Perf
- Android Nexus5X WebView Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus5X%20WebView%20Perf
- Android Nexus6 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus6%20Perf
- Android Nexus6 WebView Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus6%20WebView%20Perf
- Android Nexus7v2 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20Nexus7v2%20Perf
- Android One Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Android%20One%20Perf


It looks like there are issues logging into the test account on the bots. https://chromium-swarm.appspot.com/task?id=388f93ee99f1f610&refresh=10&show_raw=1 is an example, the screenshots look like that.

cc-ed people, do you know a bug about this?