Move PointerController enums to enum classes.

Bug: 160010896
Test: atest PointerController_test, compile
Change-Id: I6c7bfc91023ce6cd2dc8f82b0d72731f871ad3ea
Merged-In: I6c7bfc91023ce6cd2dc8f82b0d72731f871ad3ea
4 files changed