favor DCHECK_CURRENTLY_ON for better logs in content/{public,shell,test}/

content/public/test/fake_speech_recognition_manager.cc

Index: content/public/test/fake_speech_recognition_manager.cc
diff --git a/content/public/test/fake_speech_recognition_manager.cc b/content/public/test/fake_speech_recognition_manager.cc
index 91e94dd1a66c311e46fa943d0ba78d4e7f6ad0f7..d5b81160203bea2549f797337923eca2e968cbd4 100644
--- a/content/public/test/fake_speech_recognition_manager.cc
+++ b/content/public/test/fake_speech_recognition_manager.cc
@@ -34,7 +34,7 @@ FakeSpeechRecognitionManager::~FakeSpeechRecognitionManager() {
 }
 
 void FakeSpeechRecognitionManager::WaitForRecognitionStarted() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   scoped_refptr<MessageLoopRunner> runner = new MessageLoopRunner;
   recognition_started_closure_ = runner->QuitClosure();
   runner->Run();