Use absl::StartsWith/EndsWith in QUIC directly.

PiperOrigin-RevId: 339124179
Change-Id: Icc501c054ab354387b8ff0af567d6b14ce5634cb
diff --git a/quic/test_tools/qpack/qpack_offline_decoder.cc b/quic/test_tools/qpack/qpack_offline_decoder.cc
index 2fcf62a..211417f 100644
--- a/quic/test_tools/qpack/qpack_offline_decoder.cc
+++ b/quic/test_tools/qpack/qpack_offline_decoder.cc
@@ -30,6 +30,7 @@
 #include <string>
 #include <utility>
 
+#include "absl/strings/match.h"
 #include "absl/strings/string_view.h"
 #include "net/third_party/quiche/src/quic/core/quic_types.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_file_utils.h"
@@ -316,8 +317,7 @@
            decoded_header_list.begin();
        decoded_it != decoded_header_list.end();) {
     const absl::string_view key = decoded_it->first;
-    if (key != kContentLength &&
-        !quiche::QuicheTextUtils::StartsWith(key, kPseudoHeaderPrefix)) {
+    if (key != kContentLength && !absl::StartsWith(key, kPseudoHeaderPrefix)) {
       ++decoded_it;
       continue;
     }
diff --git a/quic/test_tools/quic_test_client.cc b/quic/test_tools/quic_test_client.cc
index ee99d9d..8896cac 100644
--- a/quic/test_tools/quic_test_client.cc
+++ b/quic/test_tools/quic_test_client.cc
@@ -8,6 +8,7 @@
 #include <utility>
 #include <vector>
 
+#include "absl/strings/match.h"
 #include "absl/strings/string_view.h"
 #include "third_party/boringssl/src/include/openssl/x509.h"
 #include "net/third_party/quiche/src/quic/core/crypto/proof_verifier.h"
@@ -939,8 +940,7 @@
     const std::string& uri,
     spdy::SpdyHeaderBlock* headers) {
   std::string url;
-  if (quiche::QuicheTextUtils::StartsWith(uri, "https://") ||
-      quiche::QuicheTextUtils::StartsWith(uri, "http://")) {
+  if (absl::StartsWith(uri, "https://") || absl::StartsWith(uri, "http://")) {
     url = uri;
   } else if (uri[0] == '/') {
     url = "https://" + client_->server_id().host() + uri;