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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