webrtc/: Redefine RESET semantics

Instead of resetting both ends of a stream, RESET only resets the sending side
of a stream. This is in line with the QUIC stream reset mechanism.

Author: mxinden

webrtc/README.md

@@ -286,13 +286,13 @@ package webrtc.pb;
 
 message Message {
   enum Flag {
-    // The sender will no longer send messages.
+    // The sender will no longer send messages on the stream.
     FIN = 0;
-    // The sender will no longer read messages. Incoming data is being
-    // discarded on receipt.
+    // The sender will no longer read messages on the stream. Incoming data is
+    // being discarded on receipt.
     STOP_SENDING = 1;
-    // The local endpoint abruptly terminates the stream. The remote endpoint
-    // may discard any in-flight data.
+    // The sender abruptly terminates the sending part of the stream. The
+    // receiver can discard any data that it already received on that stream.
     RESET = 2;
   }