Use DCHECKs when observing only a single notification.

chrome/browser/ssl/ssl_client_auth_observer.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/ssl/ssl_client_auth_observer.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 49 matching lines @@
   StopObserving();
   delegate_.reset();
 }
 
 void SSLClientAuthObserver::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DVLOG(1) << "SSLClientAuthObserver::Observe " << this;
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  DCHECK(type == chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED);
+  DCHECK_EQ(chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED, type);
 
   CertDetails* cert_details = content::Details<CertDetails>(details).ptr();
   if (!cert_details->first->host_and_port.Equals(
            cert_request_info_->host_and_port))
     return;
 
   DVLOG(1) << this << " got matching notification and selecting cert "
            << cert_details->second;
   StopObserving();
   delegate_->ContinueWithCertificate(cert_details->second);
   delegate_.reset();
   OnCertSelectedByNotification();
 }
 
 void SSLClientAuthObserver::StartObserving() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   notification_registrar_.Add(
       this, chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED,
       content::Source<content::BrowserContext>(browser_context_));
 }
 
 void SSLClientAuthObserver::StopObserving() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   notification_registrar_.RemoveAll();
 }