Use quiche string libraries in third_party/quic/test_tools

gfe-relnote: n/a, no functional change
PiperOrigin-RevId: 285009487
Change-Id: Ib5df01e93b8567c062cac8e5469e1ff86161445f
diff --git a/quic/test_tools/crypto_test_utils.h b/quic/test_tools/crypto_test_utils.h
index 327eb67..616018f 100644
--- a/quic/test_tools/crypto_test_utils.h
+++ b/quic/test_tools/crypto_test_utils.h
@@ -15,8 +15,8 @@
 #include "net/third_party/quiche/src/quic/core/crypto/crypto_framer.h"
 #include "net/third_party/quiche/src/quic/core/quic_framer.h"
 #include "net/third_party/quiche/src/quic/core/quic_packets.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
 #include "net/third_party/quiche/src/quic/test_tools/quic_test_utils.h"
+#include "net/third_party/quiche/src/common/platform/api/quiche_string_piece.h"
 
 namespace quic {
 
@@ -132,7 +132,7 @@
 
 // MockCommonCertSets returns a CommonCertSets that contains a single set with
 // hash |hash|, consisting of the certificate |cert| at index |index|.
-CommonCertSets* MockCommonCertSets(QuicStringPiece cert,
+CommonCertSets* MockCommonCertSets(quiche::QuicheStringPiece cert,
                                    uint64_t hash,
                                    uint32_t index);