Add QuicStringPiece which is actually StringPiece.

net/quic/core/quic_config.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/quic_config.h"
 
 #include <algorithm>
 
 #include "net/quic/core/crypto/crypto_handshake_message.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_socket_address_coder.h"
 #include "net/quic/core/quic_utils.h"
 #include "net/quic/platform/api/quic_bug_tracker.h"
 #include "net/quic/platform/api/quic_logging.h"
+#include "net/quic/platform/api/quic_string_piece.h"
 
 using std::string;
 
 namespace net {
 
 // Reads the value corresponding to |name_| from |msg| into |out|. If the
 // |name_| is absent in |msg| and |presence| is set to OPTIONAL |out| is set
 // to |default_value|.
 QuicErrorCode ReadUint32(const CryptoHandshakeMessage& msg,
                          QuicTag tag,
@@ skipping 272 matching lines @@
   if (has_send_value_) {
     QuicSocketAddressCoder address_coder(send_value_);
     out->SetStringPiece(tag_, address_coder.Encode());
   }
 }
 
 QuicErrorCode QuicFixedSocketAddress::ProcessPeerHello(
     const CryptoHandshakeMessage& peer_hello,
     HelloType hello_type,
     string* error_details) {
-  base::StringPiece address;
+  QuicStringPiece address;
   if (!peer_hello.GetStringPiece(tag_, &address)) {
     if (presence_ == PRESENCE_REQUIRED) {
       *error_details = "Missing " + QuicTagToString(tag_);
       return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND;
     }
   } else {
     QuicSocketAddressCoder address_coder;
     if (address_coder.Decode(address.data(), address.length())) {
       SetReceivedValue(
           QuicSocketAddress(address_coder.ip(), address_coder.port()));
@@ skipping 389 matching lines @@
                                                  error_details);
   }
   if (error == QUIC_NO_ERROR) {
     error = support_max_header_list_size_.ProcessPeerHello(
         peer_hello, hello_type, error_details);
   }
   return error;
 }
 
 }  // namespace net