Add QuicStringPiece which is actually StringPiece.

net/quic/core/crypto/chacha20_poly1305_decrypter_test.cc

 // Copyright 2014 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/chacha20_poly1305_decrypter.h"
 
 #include <memory>
 
 #include "net/quic/core/quic_utils.h"
 #include "net/quic/platform/api/quic_text_utils.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 
-using base::StringPiece;
 using std::string;
 
 namespace {
 
 // The test vectors come from RFC 7539 Section 2.8.2.
 
 // Each test vector consists of six strings of lowercase hexadecimal digits.
 // The strings may be empty (zero length). A test vector with a nullptr |key|
 // marks the end of an array of test vectors.
 struct TestVector {
@@ skipping 83 matching lines @@
     {nullptr}};
 
 }  // namespace
 
 namespace net {
 namespace test {
 
 // DecryptWithNonce wraps the |Decrypt| method of |decrypter| to allow passing
 // in an nonce and also to allocate the buffer needed for the plaintext.
 QuicData* DecryptWithNonce(ChaCha20Poly1305Decrypter* decrypter,
-                           StringPiece nonce,
-                           StringPiece associated_data,
-                           StringPiece ciphertext) {
+                           QuicStringPiece nonce,
+                           QuicStringPiece associated_data,
+                           QuicStringPiece ciphertext) {
   QuicPacketNumber packet_number;
-  StringPiece nonce_prefix(nonce.data(), nonce.size() - sizeof(packet_number));
+  QuicStringPiece nonce_prefix(nonce.data(),
+                               nonce.size() - sizeof(packet_number));
   decrypter->SetNoncePrefix(nonce_prefix);
   memcpy(&packet_number, nonce.data() + nonce_prefix.size(),
          sizeof(packet_number));
   std::unique_ptr<char[]> output(new char[ciphertext.length()]);
   size_t output_length = 0;
   const bool success = decrypter->DecryptPacket(
       QuicVersionMax(), packet_number, associated_data, ciphertext,
       output.get(), &output_length, ciphertext.length());
   if (!success) {
     return nullptr;
@@ skipping 16 matching lines @@
     if (has_pt) {
       pt = QuicTextUtils::HexDecode(test_vectors[i].pt);
     }
 
     ChaCha20Poly1305Decrypter decrypter;
     ASSERT_TRUE(decrypter.SetKey(key));
     std::unique_ptr<QuicData> decrypted(DecryptWithNonce(
         &decrypter, fixed + iv,
         // This deliberately tests that the decrypter can handle an AAD that
         // is set to nullptr, as opposed to a zero-length, non-nullptr pointer.
-        StringPiece(aad.length() ? aad.data() : nullptr, aad.length()), ct));
+        QuicStringPiece(aad.length() ? aad.data() : nullptr, aad.length()),
+        ct));
     if (!decrypted.get()) {
       EXPECT_FALSE(has_pt);
       continue;
     }
     EXPECT_TRUE(has_pt);
 
     EXPECT_EQ(12u, ct.size() - decrypted->length());
     ASSERT_EQ(pt.length(), decrypted->length());
     test::CompareCharArraysWithHexError("plaintext", decrypted->data(),
                                         pt.length(), pt.data(), pt.length());
   }
 }
 
 }  // namespace test
 }  // namespace net