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// 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.
#include "chrome/browser/net/chrome_http_user_agent_settings.h"
#include "base/prefs/pref_service.h"
#include "chrome/common/chrome_content_client.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "net/http/http_util.h"
ChromeHttpUserAgentSettings::ChromeHttpUserAgentSettings(PrefService* prefs) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
pref_accept_language_.Init(prefs::kAcceptLanguages, prefs);
last_pref_accept_language_ = *pref_accept_language_;
last_http_accept_language_ =
net::HttpUtil::GenerateAcceptLanguageHeader(last_pref_accept_language_);
pref_accept_language_.MoveToThread(
content::BrowserThread::GetMessageLoopProxyForThread(
content::BrowserThread::IO));
}
ChromeHttpUserAgentSettings::~ChromeHttpUserAgentSettings() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
}
void ChromeHttpUserAgentSettings::CleanupOnUIThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
pref_accept_language_.Destroy();
}
std::string ChromeHttpUserAgentSettings::GetAcceptLanguage() const {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
std::string new_pref_accept_language = *pref_accept_language_;
if (new_pref_accept_language != last_pref_accept_language_) {
last_http_accept_language_ =
net::HttpUtil::GenerateAcceptLanguageHeader(new_pref_accept_language);
last_pref_accept_language_ = new_pref_accept_language;
}
return last_http_accept_language_;
}
std::string ChromeHttpUserAgentSettings::GetUserAgent() const {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
return ::GetUserAgent();
}
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