[chrome/browser/net] favor DCHECK_CURRENTLY_ON for better logs

chrome/browser/net/chrome_http_user_agent_settings.cc

 // 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));
+  DCHECK_CURRENTLY_ON(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));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
 }
 
 void ChromeHttpUserAgentSettings::CleanupOnUIThread() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   pref_accept_language_.Destroy();
 }
 
 std::string ChromeHttpUserAgentSettings::GetAcceptLanguage() const {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(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));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   return ::GetUserAgent();
 }