
Adds the observation group as a middle man between Observations and the Watcher Manager. No functional change. Behavior will change once it is connected to the Observation Quota Manager. Fuchsia-Binary-Size: Size increase is unavoidable. Bug: 338457523 Change-Id: Ib6e1e1477ee0296ab0f4ab7f261874258485ebee Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6026981 Reviewed-by: Daseul Lee <dslee@chromium.org> Reviewed-by: Rahul Singh <rahsin@microsoft.com> Commit-Queue: Nathan Memmott <memmott@chromium.org> Cr-Commit-Position: refs/heads/main@{#1387088}