GitLab

- Initialize variables in the header; make some const.
- Use = delete.
- Remove unused Initialize().
- Use more specific DCHECKs.

Change-Id: I1a9e2a35882193d7aae216ba09803bb3f8d620ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2154230
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Daniel Hosseinian <dhoss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760208}