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

Merge "[SparseSetArray] optimize copy constructor" into tm-dev am: 79286a97 am: d014ec92 am: f106d488

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



Change-Id: I2c895bb9c2c47fd69ec3181cea5d1921acd25809
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>