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

chrome/browser/renderer_context_menu/spelling_menu_observer.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/spelling_menu_observer.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/i18n/case_conversion.h"
 #include "base/prefs/pref_service.h"
@@ skipping 34 matching lines @@
                                      profile->GetPrefs());
     autocorrect_spelling_.Init(prefs::kEnableAutoSpellCorrect,
                                profile->GetPrefs());
   }
 }
 
 SpellingMenuObserver::~SpellingMenuObserver() {
 }
 
 void SpellingMenuObserver::InitMenu(const content::ContextMenuParams& params) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(!params.misspelled_word.empty() ||
       params.dictionary_suggestions.empty());
 
   // Exit if we are not in an editable element because we add a menu item only
   // for editable elements.
   content::BrowserContext* browser_context = proxy_->GetBrowserContext();
   if (!params.is_editable || !browser_context)
     return;
 
   // Exit if there is no misspelled word.
@@ skipping 338 matching lines @@
   // Append '.' characters to the end of "Checking".
   loading_frame_ = (loading_frame_ + 1) & 3;
   base::string16 loading_message =
       loading_message_ + base::string16(loading_frame_,'.');
 
   // Update the menu item with the text. We disable this item to prevent users
   // from selecting it.
   proxy_->UpdateMenuItem(IDC_CONTENT_CONTEXT_SPELLING_SUGGESTION, false, false,
                          loading_message);
 }