Add QuicStringPiece which is actually StringPiece.

net/quic/core/crypto/cert_compressor_test.cc

 // Copyright (c) 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/cert_compressor.h"
 
 #include <memory>
 
 #include "net/quic/core/quic_utils.h"
 #include "net/quic/platform/api/quic_text_utils.h"
 #include "net/quic/test_tools/crypto_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using base::StringPiece;
 using std::string;
 
 namespace net {
 namespace test {
 
 TEST(CertCompressor, EmptyChain) {
   std::vector<string> chain;
   const string compressed = CertCompressor::CompressChain(
-      chain, StringPiece(), StringPiece(), nullptr);
+      chain, QuicStringPiece(), QuicStringPiece(), nullptr);
   EXPECT_EQ("00", QuicTextUtils::HexEncode(compressed));
 
   std::vector<string> chain2, cached_certs;
   ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
                                               &chain2));
   EXPECT_EQ(chain.size(), chain2.size());
 }
 
 TEST(CertCompressor, Compressed) {
   std::vector<string> chain;
   chain.push_back("testcert");
   const string compressed = CertCompressor::CompressChain(
-      chain, StringPiece(), StringPiece(), nullptr);
+      chain, QuicStringPiece(), QuicStringPiece(), nullptr);
   ASSERT_GE(compressed.size(), 2u);
   EXPECT_EQ("0100", QuicTextUtils::HexEncode(compressed.substr(0, 2)));
 
   std::vector<string> chain2, cached_certs;
   ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
                                               &chain2));
   EXPECT_EQ(chain.size(), chain2.size());
   EXPECT_EQ(chain[0], chain2[0]);
 }
 
 TEST(CertCompressor, Common) {
   std::vector<string> chain;
   chain.push_back("testcert");
   static const uint64_t set_hash = 42;
   std::unique_ptr<CommonCertSets> common_sets(
       crypto_test_utils::MockCommonCertSets(chain[0], set_hash, 1));
   const string compressed = CertCompressor::CompressChain(
       chain,
-      StringPiece(reinterpret_cast<const char*>(&set_hash), sizeof(set_hash)),
-      StringPiece(), common_sets.get());
+      QuicStringPiece(reinterpret_cast<const char*>(&set_hash),
+                      sizeof(set_hash)),
+      QuicStringPiece(), common_sets.get());
   EXPECT_EQ(
       "03"               /* common */
       "2a00000000000000" /* set hash 42 */
       "01000000"         /* index 1 */
       "00" /* end of list */,
       QuicTextUtils::HexEncode(compressed));
 
   std::vector<string> chain2, cached_certs;
   ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs,
                                               common_sets.get(), &chain2));
   EXPECT_EQ(chain.size(), chain2.size());
   EXPECT_EQ(chain[0], chain2[0]);
 }
 
 TEST(CertCompressor, Cached) {
   std::vector<string> chain;
   chain.push_back("testcert");
   uint64_t hash = QuicUtils::FNV1a_64_Hash(chain[0]);
-  StringPiece hash_bytes(reinterpret_cast<char*>(&hash), sizeof(hash));
-  const string compressed =
-      CertCompressor::CompressChain(chain, StringPiece(), hash_bytes, nullptr);
+  QuicStringPiece hash_bytes(reinterpret_cast<char*>(&hash), sizeof(hash));
+  const string compressed = CertCompressor::CompressChain(
+      chain, QuicStringPiece(), hash_bytes, nullptr);
 
   EXPECT_EQ("02" /* cached */ + QuicTextUtils::HexEncode(hash_bytes) +
                 "00" /* end of list */,
             QuicTextUtils::HexEncode(compressed));
 
   std::vector<string> cached_certs, chain2;
   cached_certs.push_back(chain[0]);
   ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
                                               &chain2));
   EXPECT_EQ(chain.size(), chain2.size());
@@ skipping 32 matching lines @@
   /* incorrect hash and index */
   EXPECT_FALSE(CertCompressor::DecompressChain(
       QuicTextUtils::HexEncode("03"
                                "a200000000000000"
                                "00000000"),
       cached_certs, nullptr, &chain));
 }
 
 }  // namespace test
 }  // namespace net