Ensure that DLOG(FATAL) also asserts in release-with-asserts builds.

chrome/browser/lifetime/keep_alive_registry.cc

 // Copyright 2016 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/lifetime/keep_alive_registry.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/lifetime/keep_alive_state_observer.h"
 #include "chrome/browser/lifetime/keep_alive_types.h"
@@ skipping 95 matching lines @@
                     OnKeepAliveStateChanged(new_keeping_alive));
 }
 
 void KeepAliveRegistry::OnRestartAllowedChanged(bool new_restart_allowed) {
   DVLOG(1) << "Notifying KeepAliveStateObservers: Restart changed to: "
            << new_restart_allowed;
   FOR_EACH_OBSERVER(KeepAliveStateObserver, observers_,
                     OnKeepAliveRestartStateChanged(new_restart_allowed));
 }
 
-#ifndef NDEBUG
+#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
 std::ostream& operator<<(std::ostream& out, const KeepAliveRegistry& registry) {
   out << "{registered_count_=" << registry.registered_count_
       << ", restart_allowed_count_=" << registry.restart_allowed_count_
       << ", KeepAlives=[";
   for (auto counts_per_origin_it : registry.registered_keep_alives_) {
     if (counts_per_origin_it != *registry.registered_keep_alives_.begin())
       out << ", ";
     out << counts_per_origin_it.first << " (" << counts_per_origin_it.second
         << ")";
   }
   out << "]}";
   return out;
 }
-#endif  // ndef NDEBUG
+#endif