1 // Copyright (c) 2012 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 #include "chrome/browser/net/chrome_http_user_agent_settings.h" 6 7 #include "base/prefs/pref_service.h" 8 #include "chrome/common/chrome_content_client.h" 9 #include "chrome/common/pref_names.h" 10 #include "content/public/browser/browser_thread.h" 11 #include "net/http/http_util.h" 12 13 ChromeHttpUserAgentSettings::ChromeHttpUserAgentSettings(PrefService* prefs) { 14 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 15 pref_accept_language_.Init(prefs::kAcceptLanguages, prefs); 16 last_pref_accept_language_ = *pref_accept_language_; 17 last_http_accept_language_ = 18 net::HttpUtil::GenerateAcceptLanguageHeader(last_pref_accept_language_); 19 pref_accept_language_.MoveToThread( 20 content::BrowserThread::GetMessageLoopProxyForThread( 21 content::BrowserThread::IO)); 22 } 23 24 ChromeHttpUserAgentSettings::~ChromeHttpUserAgentSettings() { 25 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 26 } 27 28 void ChromeHttpUserAgentSettings::CleanupOnUIThread() { 29 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 30 pref_accept_language_.Destroy(); 31 } 32 33 std::string ChromeHttpUserAgentSettings::GetAcceptLanguage() const { 34 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 35 std::string new_pref_accept_language = *pref_accept_language_; 36 if (new_pref_accept_language != last_pref_accept_language_) { 37 last_http_accept_language_ = 38 net::HttpUtil::GenerateAcceptLanguageHeader(new_pref_accept_language); 39 last_pref_accept_language_ = new_pref_accept_language; 40 } 41 return last_http_accept_language_; 42 } 43 44 std::string ChromeHttpUserAgentSettings::GetUserAgent() const { 45 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 46 return ::GetUserAgent(); 47 } 48 49
