GitLab

Let's make sure all the raw pointers are properly nulled out rather than
uninitialized. I'm not aware of any concrete problems caused by this,
but better safe than sorry.

Bug: none (AFAIK)
Change-Id: Ifae536ad37858ae264e055106bf6c2d80c2567e3
Reviewed-on: https://chromium-review.googlesource.com/c/1317606Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Commit-Queue: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605313}