mbonadei edb8429ba3 Tightening visibility and removing a public_dep.
This CL aligns the visibility and the dependency between the _objc
and the _generic targets to the standard decided in:
https://codereview.webrtc.org/3001623003.

BUG=webrtc:7743
NOTRY=True

Review-Url: https://codereview.webrtc.org/3012753003
Cr-Commit-Position: refs/heads/master@{#19668}
2017-09-04 14:58:29 +00:00
..
2017-07-19 17:40:47 +00:00
2016-11-16 19:11:38 +00:00