Use quiche string libraries in third_party/quic/tools

gfe-relnote: n/a, no functional change
PiperOrigin-RevId: 285002617
Change-Id: If94b091b6b1c92ae3a497d13915dbe74d4e5703a
diff --git a/quic/tools/quic_simple_dispatcher.h b/quic/tools/quic_simple_dispatcher.h
index 8a6cf85..4d04400 100644
--- a/quic/tools/quic_simple_dispatcher.h
+++ b/quic/tools/quic_simple_dispatcher.h
@@ -8,6 +8,7 @@
 #include "net/third_party/quiche/src/quic/core/http/quic_server_session_base.h"
 #include "net/third_party/quiche/src/quic/core/quic_dispatcher.h"
 #include "net/third_party/quiche/src/quic/tools/quic_simple_server_backend.h"
+#include "net/third_party/quiche/src/common/platform/api/quiche_string_piece.h"
 
 namespace quic {
 
@@ -33,7 +34,7 @@
   QuicServerSessionBase* CreateQuicSession(
       QuicConnectionId connection_id,
       const QuicSocketAddress& client_address,
-      QuicStringPiece alpn,
+      quiche::QuicheStringPiece alpn,
       const ParsedQuicVersion& version) override;
 
   QuicSimpleServerBackend* server_backend() {