tree 609bb04d2c670eea77519e08a2c74983134d7da4
parent 96c7d78b850d056ce0cbdfbc763dac0e486b6edc
author Googler <shahan@google.com> 1708737201 -0800
committer Copybara-Service <copybara-worker@google.com> 1708737282 -0800

Fork FingerprintValueCache from NestedSetSerializationCache.

This will be used in a generalized cache for shared values. Its semantics
differ in two ways.

* FingerprintValueCache works for arbitrary objects and not just Object[].
* FingerprintValueCache uses a future for the fingerprint computation so clients
  deduplicate fingerprint calculations in addition to uploads. This makes the
  two API methods slightly more uniforrm.

PiperOrigin-RevId: 609877485
Change-Id: Ied2b490858fc6eaaac3ca716a7562560b2770570