[visited-url-ranking] Service Rank API

Implements the `RankURLVisitAggregates` service method.
See design doc: go/tab-resume-fetch-and-rank-services

Bug: 330577142
Change-Id: Ia681e5caa8b5663cf31f25337bc7aec29ac84d8d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5531193
Reviewed-by: Sophie Chang <sophiechang@chromium.org>
Reviewed-by: Siddhartha S <ssid@chromium.org>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Commit-Queue: Roman Arora <romanarora@chromium.org>
Reviewed-by: Ritika Gupta <ritikagup@google.com>
Cr-Commit-Position: refs/heads/main@{#1306023}