tree e01f71b841d63769cb86ca4cf72f176db60b986c
parent 04f157c77b8adfc854135b9e788d9f75e1d3b87b
author Yurii Zubrytskyi <zyy@google.com> 1722884367 -0700
committer Yurii Zubrytskyi <zyy@google.com> 1722888647 -0700

[res] Make sure cached container is retained off cache

The object in the cache may get removed by a different thread,
so getting it from the cache needs to also take (shared)
ownership instead of relying just on the cache itself.

This CL makes the cache hols shared_ptr<> and getting it
increments the ref counter, so the object won't go away
anymore

+ fix a few small issues in Idmap - const return types
  and bad formatting

Bug: 332234677
Flag: EXEMPT bugfix
Test: build + boot
Change-Id: I8e666e380a58b45142ddbd196dd684e5874fd2a6