Add QuicStringPiece which is actually StringPiece.

net/quic/core/quic_data_writer.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_QUIC_CORE_QUIC_DATA_WRITER_H_
 #define NET_QUIC_CORE_QUIC_DATA_WRITER_H_
 
 #include <cstddef>
 #include <cstdint>
 #include <string>
 
 #include "base/macros.h"
-#include "base/strings/string_piece.h"
 #include "net/base/int128.h"
 #include "net/quic/core/quic_packets.h"
 #include "net/quic/platform/api/quic_export.h"
+#include "net/quic/platform/api/quic_string_piece.h"
 
 namespace net {
 
 // This class provides facilities for packing QUIC data.
 //
 // The QuicDataWriter supports appending primitive values (int, string, etc)
 // to a frame instance.  The internal memory buffer is exposed as the "data"
 // of the QuicDataWriter.
 class QUIC_EXPORT_PRIVATE QuicDataWriter {
  public:
@@ skipping 13 matching lines @@
   // host byte order (little endian) not network byte order (big endian).
   bool WriteUInt8(uint8_t value);
   bool WriteUInt16(uint16_t value);
   bool WriteUInt32(uint32_t value);
   bool WriteUInt48(uint64_t value);
   bool WriteUInt64(uint64_t value);
   // Write unsigned floating point corresponding to the value. Large values are
   // clamped to the maximum representable (kUFloat16MaxValue). Values that can
   // not be represented directly are rounded down.
   bool WriteUFloat16(uint64_t value);
-  bool WriteStringPiece16(base::StringPiece val);
+  bool WriteStringPiece16(QuicStringPiece val);
   bool WriteBytes(const void* data, size_t data_len);
   bool WriteRepeatedByte(uint8_t byte, size_t count);
   // Fills the remaining buffer with null characters.
   void WritePadding();
 
   size_t capacity() const { return capacity_; }
 
  private:
   // Returns the location that the data should be written at, or nullptr if
   // there is not enough room. Call EndWrite with the returned offset and the
   // given length to pad out for the next write.
   char* BeginWrite(size_t length);
 
   char* buffer_;
   size_t capacity_;  // Allocation size of payload (or -1 if buffer is const).
   size_t length_;    // Current length of the buffer.
 
   DISALLOW_COPY_AND_ASSIGN(QuicDataWriter);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_DATA_WRITER_H_