tree b46fe99c8f9afd996bb8c1be29c2240b72903899
parent 3785284275daed58b646767573d6f7bac91e1476
author Mike Stroyan <stroyan@google.com> 1475096332 -0600
committer Mike Stroyan <stroyan@google.com> 1475534125 -0600

build: hide layer symbols in android build

Hide symbols from layers that don't need to be exported.
This makes libraries smaller.
It reduces symbol lookup time and call overhead.
It prevents possible symbol collisions.