Added CompoundBuffer that will be used to store data in the encoding/decoding

remoting/protocol/rtp_writer.h

Index: remoting/protocol/rtp_writer.h
diff --git a/remoting/protocol/rtp_writer.h b/remoting/protocol/rtp_writer.h
index 86e92c0fb5e74ffc862a50a954c5a3df1344dfe3..1f410e501bfe249ae1058725a285a679e7e5a67a 100644
--- a/remoting/protocol/rtp_writer.h
+++ b/remoting/protocol/rtp_writer.h
@@ -9,6 +9,9 @@
 #include "remoting/protocol/buffered_socket_writer.h"
 
 namespace remoting {
+
+class CompoundBuffer;
+
 namespace protocol {
 
 class RtpWriter {
@@ -21,7 +24,7 @@ class RtpWriter {
   void Init(net::Socket* rtp_socket, net::Socket* rtcp_socket);
 
   // Sends next packet.
-  void SendPacket(const char* payload, int payload_size, uint32 timestamp);
+  void SendPacket(const CompoundBuffer& payload, uint32 timestamp);
 
   // Returns number of packets queued in the buffer.
   int GetPendingPackets();