| // Copyright 2015 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_VARIATIONS_NET_VARIATIONS_HTTP_HEADERS_H_ |
| #define COMPONENTS_VARIATIONS_NET_VARIATIONS_HTTP_HEADERS_H_ |
| |
| #include <set> |
| #include <string> |
| |
| namespace net { |
| class HttpRequestHeaders; |
| } |
| |
| class GURL; |
| |
| namespace variations { |
| |
| // Adds Chrome experiment and metrics state as custom headers to |headers|. |
| // The content of the headers will depend on |incognito|, |uma_enabled| and |
| // |is_signed_in| parameters. It is fine to pass false for |is_signed_in| if the |
| // state is not known to the caller. This will prevent addition of ids of type |
| // GOOGLE_WEB_PROPERTIES_SIGNED_IN, which is not the case for any ids that come |
| // from the variations server. These headers are never transmitted to non-Google |
| // web sites, which is checked based on the destination |url|. |
| void AppendVariationHeaders(const GURL& url, |
| bool incognito, |
| bool uma_enabled, |
| bool is_signed_in, |
| net::HttpRequestHeaders* headers); |
| |
| // Returns the HTTP header names which are added by AppendVariationHeaders(). |
| std::set<std::string> GetVariationHeaderNames(); |
| |
| namespace internal { |
| |
| // Checks whether variation headers should be appended to requests to the |
| // specified |url|. Returns true for google.<TLD> and youtube.<TLD> URLs with |
| // the https scheme. |
| bool ShouldAppendVariationHeaders(const GURL& url); |
| |
| } // namespace internal |
| |
| } // namespace variations |
| |
| #endif // COMPONENTS_VARIATIONS_NET_VARIATIONS_HTTP_HEADERS_H_ |