[net-internals] Remove resolved hostname from UDP_SOCKET event description.

UDP sockets can now live across multiple HOST_RESOLVER_IMPL_JOBs, so the
hostname can no longer be used in the description.

BUG=167366
TEST=see bug


Review URL: https://chromiumcodereview.appspot.com/11663014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@174620 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed