[automerger skipped] Merge "Expose methods to enumerate constants" am:...

[automerger skipped] Merge "Expose methods to enumerate constants" am: ae9309bc am: 03719544 am: 1fd0a64a am: 1dbdef8c -s ours

am skip reason: Change-Id Ie516792a7522dd0df09d7b97f0b764d776559bf1 with SHA-1 57d70904 is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1470085

Change-Id: I703765d4b9b87b8b44cf83ee7c5416179fae497b