favor DCHECK_CURRENTLY_ON for better logs in extensions/

extensions/shell/browser/shell_speech_recognition_manager_delegate.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 "extensions/shell/browser/shell_speech_recognition_manager_delegate.h"
 
 #include "base/bind.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/speech_recognition_manager.h"
@@ skipping 54 matching lines @@
 }
 
 void ShellSpeechRecognitionManagerDelegate::GetDiagnosticInformation(
     bool* can_report_metrics,
     std::string* hardware_info) {
 }
 
 void ShellSpeechRecognitionManagerDelegate::CheckRecognitionIsAllowed(
     int session_id,
     base::Callback<void(bool ask_user, bool is_allowed)> callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   const content::SpeechRecognitionSessionContext& context =
       SpeechRecognitionManager::GetInstance()->GetSessionContext(session_id);
 
   // Make sure that initiators (extensions/web pages) properly set the
   // |render_process_id| field, which is needed later to retrieve the profile.
   DCHECK_NE(context.render_process_id, 0);
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(&CheckRenderViewType,
@@ skipping 11 matching lines @@
     int render_process_id) {
   // TODO(zork): Determine where this preference should come from.
   return true;
 }
 
 // static
 void ShellSpeechRecognitionManagerDelegate::CheckRenderViewType(
     base::Callback<void(bool ask_user, bool is_allowed)> callback,
     int render_process_id,
     int render_view_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   const content::RenderViewHost* render_view_host =
       content::RenderViewHost::FromID(render_process_id, render_view_id);
   bool allowed = false;
   bool check_permission = false;
 
   if (render_view_host) {
     WebContents* web_contents =
         WebContents::FromRenderViewHost(render_view_host);
     extensions::ViewType view_type = extensions::GetViewType(web_contents);
 
     if (view_type == extensions::VIEW_TYPE_APP_WINDOW ||
         view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
       allowed = true;
       check_permission = true;
     } else {
       LOG(WARNING) << "Speech recognition only supported in Apps.";
     }
   }
 
   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                           base::Bind(callback, check_permission, allowed));
 }
 
 }  // namespace speech
 }  // namespace extensions