GitLab

Hopefully getting the stack and some info of of when a
!normal_termination and kInvalidSigno happens will be helpful to pin
down the cause.

Bug: 1115216
Change-Id: I4bda59c1e27782e7688d1594c8af6efba6c1c9c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2448058Reviewed-by: Richard Coles <torne@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813865}