Add a new QUIC platform API for text utilities.

net/quic/core/crypto/quic_crypto_client_config.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/crypto/quic_crypto_client_config.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/stl_util.h"
-#include "base/strings/string_util.h"
 #include "net/quic/core/crypto/cert_compressor.h"
 #include "net/quic/core/crypto/chacha20_poly1305_encrypter.h"
 #include "net/quic/core/crypto/channel_id.h"
 #include "net/quic/core/crypto/common_cert_set.h"
 #include "net/quic/core/crypto/crypto_framer.h"
 #include "net/quic/core/crypto/crypto_utils.h"
 #include "net/quic/core/crypto/curve25519_key_exchange.h"
 #include "net/quic/core/crypto/key_exchange.h"
 #include "net/quic/core/crypto/p256_key_exchange.h"
 #include "net/quic/core/crypto/proof_verifier.h"
 #include "net/quic/core/crypto/quic_encrypter.h"
 #include "net/quic/core/crypto/quic_random.h"
 #include "net/quic/core/quic_bug_tracker.h"
 #include "net/quic/core/quic_utils.h"
+#include "net/quic/platform/api/quic_text_utils.h"
 
 using base::ContainsKey;
 using base::StringPiece;
 using std::string;
 
 namespace net {
 
 namespace {
 
 // Tracks the reason (the state of the server config) for sending inchoate
@@ skipping 906 matching lines @@
     aead.insert(aead.begin(), kAESG);
   }
 }
 
 bool QuicCryptoClientConfig::PopulateFromCanonicalConfig(
     const QuicServerId& server_id,
     CachedState* server_state) {
   DCHECK(server_state->IsEmpty());
   size_t i = 0;
   for (; i < canonical_suffixes_.size(); ++i) {
-    if (base::EndsWith(server_id.host(), canonical_suffixes_[i],
-                       base::CompareCase::INSENSITIVE_ASCII)) {
+    if (QuicTextUtils::EndsWithIgnoreCase(server_id.host(),
+                                          canonical_suffixes_[i])) {
       break;
     }
   }
   if (i == canonical_suffixes_.size()) {
     return false;
   }
 
   QuicServerId suffix_server_id(canonical_suffixes_[i], server_id.port(),
                                 server_id.privacy_mode());
   if (!ContainsKey(canonical_server_map_, suffix_server_id)) {
@@ skipping 11 matching lines @@
   }
 
   // Update canonical version to point at the "most recent" entry.
   canonical_server_map_[suffix_server_id] = server_id;
 
   server_state->InitializeFrom(*canonical_state);
   return true;
 }
 
 }  // namespace net