net: Update the include paths of base/string_piece.h to its new location.

net/tools/quic/quic_reliable_client_stream.h

 // 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.
 
 #ifndef NET_TOOLS_QUIC_QUIC_RELIABLE_CLIENT_STREAM_H_
 #define NET_TOOLS_QUIC_QUIC_RELIABLE_CLIENT_STREAM_H_
 
 #include <sys/types.h>
 #include <string>
 
-#include "base/string_piece.h"
+#include "base/strings/string_piece.h"
 #include "net/quic/quic_protocol.h"
 #include "net/quic/reliable_quic_stream.h"
 #include "net/tools/flip_server/balsa_frame.h"
 #include "net/tools/flip_server/balsa_headers.h"
 
 namespace net {
 
 class QuicSession;
 
 namespace tools {
@@ skipping 38 matching lines @@
   std::string data_;
   bool closed_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicReliableClientStream);
 };
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_RELIABLE_CLIENT_STREAM_H_