Groundwork for cancelling quartc streams after a deadline is exceeded.

net/quic/quartc/quartc_stream_interface.h

Index: net/quic/quartc/quartc_stream_interface.h
diff --git a/net/quic/quartc/quartc_stream_interface.h b/net/quic/quartc/quartc_stream_interface.h
index 25e928ec95cb103102d62415310c5708da367cd7..1777f58ba2b65255b38471798d472a913321af1f 100644
--- a/net/quic/quartc/quartc_stream_interface.h
+++ b/net/quic/quartc/quartc_stream_interface.h
@@ -28,6 +28,10 @@ class QuartcStreamInterface {
   // determine if all the data has been sent
   virtual bool fin_sent() = 0;
 
+  virtual int stream_error() = 0;
+
+  virtual int connection_error() = 0;
+
   struct WriteParameters {
     WriteParameters() : fin(false) {}
     // |fin| is set to be true when there is no more data need to be send
@@ -61,7 +65,7 @@ class QuartcStreamInterface {
     // endpoint.
     // TODO(zhihuang) Creates a map from the integer error_code to WebRTC native
     // error code.
-    virtual void OnClose(QuartcStreamInterface* stream, int error_code) = 0;
+    virtual void OnClose(QuartcStreamInterface* stream) = 0;
 
     // Called when buffered_amount() decreases.
     virtual void OnBufferedAmountDecrease(QuartcStreamInterface* stream) = 0;