GitLab

The tile's restricted ID is referenced in multiple places as "rid" and
"tid". Standardize naming by changing all references of "tid" to "rid".

Change-Id: I285d7b21abb404adb0c97cdecad38c38ae3a39d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1642235Reviewed-by: Gayane Petrosyan <gayane@chromium.org>
Commit-Queue: Kristi Park <kristipark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#666472}