| // Copyright 2014 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_HPACK_STRING_UTIL_H_ | 
 | #define NET_SPDY_HPACK_STRING_UTIL_H_ | 
 |  | 
 | #include "base/strings/string_piece.h" | 
 | #include "net/base/net_export.h" | 
 |  | 
 | namespace net { | 
 |  | 
 | // All section references below are to | 
 | // http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-08 | 
 |  | 
 | // A constant-time StringPiece comparison function. | 
 | bool NET_EXPORT_PRIVATE StringPiecesEqualConstantTime( | 
 |     base::StringPiece str1, | 
 |     base::StringPiece str2); | 
 |  | 
 | }  // namespace net | 
 |  | 
 | #endif  // NET_SPDY_HPACK_STRING_UTIL_H_ |