Switch voice transport to use Call and Stream instead of VoENetwork.

webrtc/voice_engine/channel.h

Index: webrtc/voice_engine/channel.h
diff --git a/webrtc/voice_engine/channel.h b/webrtc/voice_engine/channel.h
index d22da74ae5f775a1751409a9d4dc7d2740ee8fe6..f428aef25869abacb7704ad59b67178e7552c5bb 100644
--- a/webrtc/voice_engine/channel.h
+++ b/webrtc/voice_engine/channel.h
@@ -220,10 +220,10 @@ class Channel
   // VoENetwork
   int32_t RegisterExternalTransport(Transport& transport);
   int32_t DeRegisterExternalTransport();
-  int32_t ReceivedRTPPacket(const int8_t* data,
+  int32_t ReceivedRTPPacket(const uint8_t* received_packet,
                             size_t length,
                             const PacketTime& packet_time);
-  int32_t ReceivedRTCPPacket(const int8_t* data, size_t length);
+  int32_t ReceivedRTCPPacket(const uint8_t* data, size_t length);
 
   // VoEFile
   int StartPlayingFileLocally(const char* fileName,