Revert "Revert "Hide symbols from the unwinder.""

Bug: 18471342
Bug: 19958712
This reverts commit d3c786591b2e606d371c402bb3123fffbcbbb6ba.

Change-Id: Ie0744c329241cf20b58c519c1bbbdc68e496e43d
(cherry picked from commit 2ea633775bea94317c426da71f3782ce322389fd)
1 file changed