Index: net/http/http_util_icu.h |
diff --git a/net/http/http_util_icu.h b/net/http/http_util_icu.h |
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+// Copyright (c) 2016 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_HTTP_HTTP_UTIL_ICU_H_ |
+#define NET_HTTP_HTTP_UTIL_ICU_H_ |
+ |
+#include <string> |
+ |
+#include "net/base/net_export.h" |
+ |
+namespace net { |
+ |
+class NET_EXPORT HttpUtilIcu { |
+ public: |
+ // Given a comma separated ordered list of language codes, return the list |
+ // with a q-value appended to each language. The way q-values are assigned is |
+ // rather simple. The q-value starts with 1.0 and is decremented by 0.2 for |
+ // each successive entry in the list until it reaches 0.2. All the entries |
+ // after that are assigned the same q-value of 0.2. Also, note that 1st |
+ // language will not have a q-value added because the absence of a q-value |
+ // implicitly means q=1.0. |
+ // |
+ // When making a http request, this should be used to determine what to put in |
+ // Accept-Language header. If a comma separated list of language codes |
+ // *without* q-value is sent, web servers regard all of them as having q=1.0 |
+ // and pick one of them even though it may not be at the beginning of the list |
+ // (see http://crbug.com/5899). |
+ static std::string GenerateAcceptLanguageHeader( |
+ const std::string& raw_language_list); |
+}; |
+} // namespace net |
+ |
+#endif // NET_HTTP_HTTP_UTIL_ICU_H_ |