Don't fail when adding a duplicate legacy route.

This only affects calls to requestRouteToHost() by apps. We still fail if the
framework itself tries to add a non-legacy duplicate route, since the framework
should know better (we can consider relaxing that too in the future).

Bug: 15925532
Change-Id: I9ee434277e462d570f88e6fe63a096e5ae41eee9
1 file changed
tree: c746a1c40cb3516eac4c8903e904f0ff6c58b3fb
  1. client/
  2. include/
  3. server/