GitLab

- Make RenderProcessBlockedStateChanged() private.
- Modernize new and NULL usage.

Change-Id: I91fd842c3fbfc7eff1a89142d09cfe3e55430993
Reviewed-on: https://chromium-review.googlesource.com/c/1496242Reviewed-by: Ken Buchanan <kenrb@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636881}