Add QuicStringPiece which is actually StringPiece.

net/quic/core/quic_server_session_base.cc

 // Copyright (c) 2012 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_server_session_base.h"
 
 #include "net/quic/core/proto/cached_network_parameters.pb.h"
 #include "net/quic/core/quic_connection.h"
 #include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_stream.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 {
 
 QuicServerSessionBase::QuicServerSessionBase(
     const QuicConfig& config,
     QuicConnection* connection,
     Visitor* visitor,
     QuicCryptoServerStream::Helper* helper,
@@ skipping 209 matching lines @@
 
 int32_t QuicServerSessionBase::BandwidthToCachedParameterBytesPerSecond(
     const QuicBandwidth& bandwidth) {
   int64_t bytes_per_second = bandwidth.ToBytesPerSecond();
   return (bytes_per_second > static_cast<int64_t>(INT32_MAX)
               ? INT32_MAX
               : static_cast<int32_t>(bytes_per_second));
 }
 
 }  // namespace net