Revert of Don't hardcode MediaType::ANY in FakeNetworkPipe.

webrtc/test/call_test.cc

Index: webrtc/test/call_test.cc
diff --git a/webrtc/test/call_test.cc b/webrtc/test/call_test.cc
index 290a9431de813096de18e13f2e787f0b6cdf636f..ad55421f667bc1f73fb195ecf2cb5dd8f3ecd49b 100644
--- a/webrtc/test/call_test.cc
+++ b/webrtc/test/call_test.cc
@@ -458,13 +458,11 @@
 
 test::PacketTransport* BaseTest::CreateSendTransport(Call* sender_call) {
   return new PacketTransport(sender_call, this, test::PacketTransport::kSender,
-                             MediaType::VIDEO,
                              FakeNetworkPipe::Config());
 }
 
 test::PacketTransport* BaseTest::CreateReceiveTransport() {
   return new PacketTransport(nullptr, this, test::PacketTransport::kReceiver,
-                             MediaType::VIDEO,
                              FakeNetworkPipe::Config());
 }