Update NexusPlayers to O Preview 2

This may help with NexusPlayers flaking out.

Bug: skia:6045
NOTRY=true
Change-Id: I1ac1bf3cb5e17d26069082da7cb0f420865c9630
Reviewed-on: https://skia-review.googlesource.com/17388
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2 files changed