| // Copyright (c) 2012 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 CHROME_BROWSER_NET_CHROME_HTTP_USER_AGENT_SETTINGS_H_ |
| #define CHROME_BROWSER_NET_CHROME_HTTP_USER_AGENT_SETTINGS_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/prefs/pref_member.h" |
| #include "net/url_request/http_user_agent_settings.h" |
| |
| class PrefService; |
| |
| // An implementation of |HttpUserAgentSettings| that provides HTTP header |
| // Accept-Language value that tracks Pref settings. |
| class ChromeHttpUserAgentSettings : public net::HttpUserAgentSettings { |
| public: |
| // Must be called on the UI thread. |
| explicit ChromeHttpUserAgentSettings(PrefService* prefs); |
| // Must be called on the IO thread. |
| virtual ~ChromeHttpUserAgentSettings(); |
| |
| void CleanupOnUIThread(); |
| |
| // net::HttpUserAgentSettings implementation |
| virtual std::string GetAcceptLanguage() const OVERRIDE; |
| virtual std::string GetUserAgent() const OVERRIDE; |
| |
| private: |
| StringPrefMember pref_accept_language_; |
| |
| // Avoid re-processing by caching the last value from the preferences and the |
| // last result of processing via net::HttpUtil::GenerateAccept*Header(). |
| mutable std::string last_pref_accept_language_; |
| mutable std::string last_http_accept_language_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ChromeHttpUserAgentSettings); |
| }; |
| |
| #endif // CHROME_BROWSER_NET_CHROME_HTTP_USER_AGENT_SETTINGS_H_ |
| |