Merge "Add a return value to BlobCache::set" into tm-dev am: 8a5d80d7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18145090



Change-Id: I2ce5b7750329f1e5f0229842d0d3f0cb93c0ea93
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>