Automated g4 rollback of changelist 329381168. *** Reason for rollback *** Re-revert absl::node_hash_map. This time, the problem appears to be binary size increase on Chrome for Android. *** Original change description *** Re-land cl/328561880 absl::node_hash_map is now available in Chromium: https://chromium-review.googlesource.com/c/chromium/src/+/2379635 *** PiperOrigin-RevId: 329554714 Change-Id: Icd563f527ce670c6bb7307e8a88037d46e5a2549