Cast:Adding cast_transport_config and cleaning up

media/cast/test/receiver.cc

Index: media/cast/test/receiver.cc
diff --git a/media/cast/test/receiver.cc b/media/cast/test/receiver.cc
index 0731c4f636a64cd2beee2e4a015833d7c2aa112f..2f32704f718e083ae3ac8f16b6415048a5dc6023 100644
--- a/media/cast/test/receiver.cc
+++ b/media/cast/test/receiver.cc
@@ -112,7 +112,7 @@ AudioReceiverConfig GetAudioReceiverConfig() {
   audio_config.use_external_decoder = false;
   audio_config.frequency = 48000;
   audio_config.channels = 2;
-  audio_config.codec = kOpus;
+  audio_config.codec = transport::kOpus;
   return audio_config;
 }
 
@@ -133,7 +133,7 @@ VideoReceiverConfig GetVideoReceiverConfig() {
   video_config.use_external_decoder = false;
 
   VLOG(1) << "Using VP8";
-  video_config.codec = kVp8;
+  video_config.codec = transport::kVp8;
   return video_config;
 }
 
@@ -249,7 +249,7 @@ int main(int argc, char** argv) {
       video_config,
       transport->packet_sender()));
 
-  media::cast::PacketReceiver* packet_receiver =
+  media::cast::transport::PacketReceiver* packet_receiver =
       cast_receiver->packet_receiver();
 
   int send_to_port, receive_port;