Merge "[SparseSetArray] optimize copy constructor" into tm-dev am: 79286a97...

Merge "[SparseSetArray] optimize copy constructor" into tm-dev am: 79286a97 am: d014ec92 am: 09bee47d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18415062



Change-Id: If4666a83586d58b149d113e52fd0ba77d3cbc925
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>