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

chrome/browser/renderer_context_menu/spellchecker_submenu_observer_hunspell.cc

 // Copyright 2014 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/renderer_context_menu/spellchecker_submenu_observer.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_member.h"
 #include "base/prefs/pref_service.h"
@@ skipping 22 matching lines @@
       language_group_(group),
       language_selected_(0) {
   DCHECK(proxy_);
 }
 
 SpellCheckerSubMenuObserver::~SpellCheckerSubMenuObserver() {
 }
 
 void SpellCheckerSubMenuObserver::InitMenu(
     const content::ContextMenuParams& params) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   // Add available spell-checker languages to the sub menu.
   content::BrowserContext* browser_context = proxy_->GetBrowserContext();
   DCHECK(browser_context);
   language_selected_ =
       SpellcheckService::GetSpellCheckLanguages(browser_context, &languages_);
   DCHECK(languages_.size() <
          IDC_SPELLCHECK_LANGUAGES_LAST - IDC_SPELLCHECK_LANGUAGES_FIRST);
   const std::string app_locale = g_browser_process->GetApplicationLocale();
   for (size_t i = 0; i < languages_.size(); ++i) {
@@ skipping 116 matching lines @@
   }
 
   switch (command_id) {
     case IDC_CHECK_SPELLING_WHILE_TYPING:
       profile->GetPrefs()->SetBoolean(
           prefs::kEnableContinuousSpellcheck,
           !profile->GetPrefs()->GetBoolean(prefs::kEnableContinuousSpellcheck));
     break;
   }
 }