Add QuicStringPiece which is actually StringPiece.

net/quic/core/quic_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.
 //
 // The base class for client/server QUIC streams.
 
 // It does not contain the entire interface needed by an application to interact
 // with a QUIC stream.  Some parts of the interface must be obtained by
 // accessing the owning session object.  A subclass of QuicStream
 // connects the object and the application that generates and consumes the data
 // of the stream.
 
 // The QuicStream object has a dependent QuicStreamSequencer object,
 // which is given the stream frames as they arrive, and provides stream data in
 // order by invoking ProcessRawData().
 
 #ifndef NET_QUIC_CORE_QUIC_STREAM_H_
 #define NET_QUIC_CORE_QUIC_STREAM_H_
 
 #include <cstddef>
 #include <cstdint>
 #include <list>
 #include <string>
 
 #include "base/macros.h"
-#include "base/strings/string_piece.h"
 #include "net/base/iovec.h"
 #include "net/quic/core/quic_flow_controller.h"
 #include "net/quic/core/quic_iovector.h"
 #include "net/quic/core/quic_packets.h"
 #include "net/quic/core/quic_stream_sequencer.h"
 #include "net/quic/core/quic_types.h"
 #include "net/quic/platform/api/quic_export.h"
 #include "net/quic/platform/api/quic_reference_counted.h"
+#include "net/quic/platform/api/quic_string_piece.h"
 
 namespace net {
 
 namespace test {
 class QuicStreamPeer;
 }  // namespace test
 
 class QuicSession;
 
 class QUIC_EXPORT_PRIVATE QuicStream {
@@ skipping 130 matching lines @@
   virtual void StopReading();
 
   // Get peer IP of the lastest packet which connection is dealing/delt with.
   virtual const QuicSocketAddress& PeerAddressOfLatestPacket() const;
 
   // Sends as much of 'data' to the connection as the connection will consume,
   // and then buffers any remaining data in queued_data_.
   // If fin is true: if it is immediately passed on to the session,
   // write_side_closed() becomes true, otherwise fin_buffered_ becomes true.
   void WriteOrBufferData(
-      base::StringPiece data,
+      QuicStringPiece data,
       bool fin,
       QuicReferenceCountedPointer<QuicAckListenerInterface> ack_listener);
 
  protected:
   // Sends as many bytes in the first |count| buffers of |iov| to the connection
   // as the connection will consume.
   // If |ack_listener| is provided, then it will be notified once all
   // the ACKs for this write have been received.
   // Returns the number of bytes consumed by the connection.
   QuicConsumedData WritevData(
@@ skipping 120 matching lines @@
   // A counter incremented when OnCanWrite() is called and no progress is made.
   // For debugging only.
   size_t busy_counter_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_STREAM_H_