Merge "Deprecate function declarations, not definitions." am: 302b92a5

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2640609



Change-Id: Ie7116c133a1bde63430d9165d74bddee2662167d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>