fast/.../not-http-equiv-content.html in webkit_tests failing on chromium.webkit/WebKit Android (Nexus4)

Builders failed on: 
- WebKit Android (Nexus4): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Android%20%28Nexus4%29


First failure is here: https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Android%20%28Nexus4%29/builds/71152 . Regression range is 514484-514491. I don't see anything readily obvious. Maybe https://chromium-review.googlesource.com/756856 , which says if see failures update TestExpectations. Will wait another cycle and if fails again disable.