Modernize ref_counted.h

base/memory/ref_counted.cc

 // Copyright (c) 2011 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 "base/memory/ref_counted.h"
 #include "base/threading/thread_collision_warner.h"
 
 namespace base {
 
 namespace subtle {
 
 bool RefCountedThreadSafeBase::HasOneRef() const {
   return AtomicRefCountIsOne(
       &const_cast<RefCountedThreadSafeBase*>(this)->ref_count_);
 }
 
 RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) {
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
   in_dtor_ = false;
 #endif
 }
 
 RefCountedThreadSafeBase::~RefCountedThreadSafeBase() {
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
   DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without "
                       "calling Release()";
 #endif
 }
 
 void RefCountedThreadSafeBase::AddRef() const {
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
   DCHECK(!in_dtor_);
 #endif
   AtomicRefCountInc(&ref_count_);
 }
 
 bool RefCountedThreadSafeBase::Release() const {
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
   DCHECK(!in_dtor_);
   DCHECK(!AtomicRefCountIsZero(&ref_count_));
 #endif
   if (!AtomicRefCountDec(&ref_count_)) {
-#ifndef NDEBUG
+#if DCHECK_IS_ON()
     in_dtor_ = true;
 #endif
     return true;
   }
   return false;
 }
 
 }  // namespace subtle
 
 }  // namespace base