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

chrome/browser/lifetime/keep_alive_registry.h

 // 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.
 
 #ifndef CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_
 #define CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 22 matching lines @@
   bool IsRestartAllowed() const;
   bool IsOriginRegistered(KeepAliveOrigin origin) const;
 
   void AddObserver(KeepAliveStateObserver* observer);
   void RemoveObserver(KeepAliveStateObserver* observer);
 
  private:
   friend struct base::DefaultSingletonTraits<KeepAliveRegistry>;
   // Friend to be able to use Register/Unregister
   friend class ScopedKeepAlive;
-#ifndef NDEBUG
+#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
   friend std::ostream& operator<<(std::ostream& out,
                                   const KeepAliveRegistry& registry);
-#endif  // NDEBUG
+#endif
 
   KeepAliveRegistry();
   ~KeepAliveRegistry();
 
   // Add/Remove entries. Do not use directly, use ScopedKeepAlive instead.
   void Register(KeepAliveOrigin origin, KeepAliveRestartOption restart);
   void Unregister(KeepAliveOrigin origin, KeepAliveRestartOption restart);
 
   // Methods called when a specific aspect of the state of the registry changes.
   void OnKeepAliveStateChanged(bool new_keeping_alive);
   void OnRestartAllowedChanged(bool new_restart_allowed);
 
   // Tracks the registered KeepAlives, storing the origin and the number of
   // registered KeepAlives for each.
   std::map<KeepAliveOrigin, int> registered_keep_alives_;
 
   // Total number of registered KeepAlives
   int registered_count_;
 
   // Number of registered keep alives that have KeepAliveRestartOption::ENABLED.
   int restart_allowed_count_;
 
   base::ObserverList<KeepAliveStateObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(KeepAliveRegistry);
 };
 
-#ifndef NDEBUG
+#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
 std::ostream& operator<<(std::ostream& out, const KeepAliveRegistry& registry);
-#endif  // ndef NDEBUG
+#endif
 
 #endif  // CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_