| // 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 COMPONENTS_METRICS_COMPRESSION_UTILS_H_ | 
 | #define COMPONENTS_METRICS_COMPRESSION_UTILS_H_ | 
 |  | 
 | #include <string> | 
 |  | 
 | namespace metrics { | 
 |  | 
 | // Compresses the data in |input| using gzip, storing the result in |output|. | 
 | // |input| and |output| are allowed to be the same string (in-place operation). | 
 | bool GzipCompress(const std::string& input, std::string* output); | 
 |  | 
 | // Uncompresses the data in |input| using gzip, storing the result in |output|. | 
 | // |input| and |output| are allowed to be the same string (in-place operation). | 
 | bool GzipUncompress(const std::string& input, std::string* output); | 
 |  | 
 | }  // namespace metrics | 
 |  | 
 | #endif  // COMPONENTS_METRICS_COMPRESSION_UTILS_H_ |