Cast:Adding cast_transport_config and cleaning up

media/cast/cast_config.cc

Index: media/cast/cast_config.cc
diff --git a/media/cast/cast_config.cc b/media/cast/cast_config.cc
index c2c4cd9188d3eaa0b6fb1528f89cdfa18712f060..27745bc98808c35253e5ffe9d7b7384cbb2a34c3 100644
--- a/media/cast/cast_config.cc
+++ b/media/cast/cast_config.cc
@@ -46,19 +46,8 @@ VideoReceiverConfig::VideoReceiverConfig()
       max_frame_rate(kDefaultMaxFrameRate),
       decoder_faster_than_max_frame_rate(true) {}
 
-EncodedVideoFrame::EncodedVideoFrame() {}
-EncodedVideoFrame::~EncodedVideoFrame() {}
-
-EncodedAudioFrame::EncodedAudioFrame() {}
-EncodedAudioFrame::~EncodedAudioFrame() {}
-
 PcmAudioFrame::PcmAudioFrame() {}
 PcmAudioFrame::~PcmAudioFrame() {}
 
-// static
-void PacketReceiver::DeletePacket(const uint8* packet) {
-  delete [] packet;
-}
-
 }  // namespace cast
 }  // namespace media