interactive_ui_tests failing on chromium.mac/Mac10.12 Tests

Builders failed on: 
- Mac10.12 Tests: 
  https://build.chromium.org/p/chromium.mac/builders/Mac10.12%20Tests

Error like

[ RUN      ] BridgedNativeWidgetUITest.HitTest
[2236:775:0920/194914.734994:67977968658883:ERROR:native_widget_mac.mm(281)] Not implemented reached in virtual void views::NativeWidgetMac::SetWindowIcons(const gfx::ImageSkia &, const gfx::ImageSkia &)
[2236:775:0920/194914.762856:67977996513802:ERROR:native_widget_mac.mm(281)] Not implemented reached in virtual void views::NativeWidgetMac::SetWindowIcons(const gfx::ImageSkia &, const gfx::ImageSkia &)
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:425: Failure
Value of: [did_move_observer wait]
  Actual: false
Expected: true
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:426: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:432: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:484: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:508: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:514: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:529: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
../../ui/views/cocoa/bridged_native_widget_interactive_uitest.mm:535: Failure
      Expected: 120
To be equal to: [window frame].origin.x
      Which is: 110
[  FAILED  ] BridgedNativeWidgetUITest.HitTest (11688 ms)


I couldn't get this to fail locally. I think there are some 10.12 bots with a bogus setup for running interactive_ui_tests that causes the mouse events to hit the wrong window.