Change parameter list of QuicConnection::OnConnectionClosed upcall

Parameter list was the individual fields of the Connection Close frame.
Now, the QuicConnectionCloseFrame is passed up. This object contains
all the parameters of the frame.

gfe-relnote: N/A, not flag protected. This change just rearranges function parameters.
PiperOrigin-RevId: 254406883
Change-Id: I6c11b7d7a09d5e765f385d8d54a56c02687e7894
diff --git a/quic/quartc/quartc_fakes.h b/quic/quartc/quartc_fakes.h
index 8b86064..91ea9a9 100644
--- a/quic/quartc/quartc_fakes.h
+++ b/quic/quartc/quartc_fakes.h
@@ -43,8 +43,7 @@
   }
 
   // Called when connection closes locally, or remotely by peer.
-  void OnConnectionClosed(QuicErrorCode /*error_code*/,
-                          const std::string& /*error_details*/,
+  void OnConnectionClosed(const QuicConnectionCloseFrame& /*frame*/,
                           ConnectionCloseSource /*source*/) override {
     connected_ = false;
   }