Switch to standard integer types in net/.

net/spdy/spdy_headers_handler_interface.h

 // Copyright 2015 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_SPDY_SPDY_HEADERS_HANDLER_INTERFACE_H_
 #define NET_SPDY_SPDY_HEADERS_HANDLER_INTERFACE_H_
 
+#include <stddef.h>
+
 #include "base/strings/string_piece.h"
 
 namespace net {
 
 // This interface defines how an object that accepts header data should behave.
 // It is used by both SpdyHeadersBlockParser and HpackDecoder.
 class SpdyHeadersHandlerInterface {
  public:
   virtual ~SpdyHeadersHandlerInterface() {}
 
   // A callback method which notifies when the parser starts handling a new
   // header block fragment.
   virtual void OnHeaderBlockStart() = 0;
 
   // A callback method which notifies on a header key value pair. Multiple
   // values for a given key will be emitted as multiple calls to OnHeader.
   virtual void OnHeader(base::StringPiece key, base::StringPiece value) = 0;
 
   // A callback method which notifies when the parser finishes handling a
   // header block fragment. Also indicates the total number of bytes in this
   // block.
   virtual void OnHeaderBlockEnd(size_t header_bytes_parsed) = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_HEADERS_HANDLER_INTERFACE_H_