1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef GOOGLE_APIS_DRIVE_REQUEST_UTIL_H_ 6 #define GOOGLE_APIS_DRIVE_REQUEST_UTIL_H_ 7 8 #include <string> 9 10 namespace google_apis { 11 namespace util { 12 13 // If-Match header which matches to all etags. 14 extern const char kIfMatchAllHeader[]; 15 16 // Returns If-Match header string for |etag|. 17 // If |etag| is empty, the returned header should match any etag. 18 std::string GenerateIfMatchHeader(const std::string& etag); 19 20 } // namespace util 21 } // namespace google_apis 22 23 #endif // GOOGLE_APIS_DRIVE_REQUEST_UTIL_H_ 24