GitLab

Update code where NULL or 0 is assigned to a scoped_refptr to reset it. Just
call reset() instead. If operator=(std::nullptr_t) is added these assignments
become ambiguous.

This CL was uploaded by git cl split.

R=sadrul@chromium.org

Bug: 1024981
Change-Id: Ia7d9cd0d76794292be90704b14682ba656c45996
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1918148
Auto-Submit: kylechar <kylechar@chromium.org>
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#716476}