Don't flush DNS cache on route changes.

Since Lollipop, routes are isolated within Networks.  Flushing a
Network's DNS cache whenever that same Network's routes are updated
doesn't provide any benefit.  Any system components depending on this
behaviour need to uncovered and fixed.

Additionally, clean up no-longer-used flushNetworkDnsCache().  This
should be replaced, when needed, by a proper binder interface to netd.

Change-Id: I34bf79e4839da014d466058a876d754209d0c007
1 file changed
tree: 284b419bc05475fb487ccf721c2d3f262f7eac51
  1. core/
  2. services/
  3. tests/