Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/core/frame/SuspendableTimer.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 22 matching lines @@
 namespace {
 // The lowest value returned by TimerBase::nextUnalignedFireInterval is 0.0
 const double kNextFireIntervalInvalid = -1.0;
 }
 
 SuspendableTimer::SuspendableTimer(ExecutionContext* context)
     : TimerBase(TaskRunnerHelper::get(TaskType::Timer, context)),
       SuspendableObject(context),
       m_nextFireInterval(kNextFireIntervalInvalid),
       m_repeatInterval(0)
-#if ENABLE(ASSERT)
-      ,
-      m_suspended(false)
-#endif
 {
   DCHECK(context);
 }
 
 SuspendableTimer::~SuspendableTimer() {}
 
 void SuspendableTimer::stop() {
   m_nextFireInterval = kNextFireIntervalInvalid;
   TimerBase::stop();
 }
 
 void SuspendableTimer::contextDestroyed(ExecutionContext*) {
   stop();
 }
 
 void SuspendableTimer::suspend() {
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   ASSERT(!m_suspended);
   m_suspended = true;
 #endif
   if (isActive()) {
     m_nextFireInterval = nextFireInterval();
     ASSERT(m_nextFireInterval >= 0.0);
     m_repeatInterval = repeatInterval();
     TimerBase::stop();
   }
 }
 
 void SuspendableTimer::resume() {
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   ASSERT(m_suspended);
   m_suspended = false;
 #endif
   if (m_nextFireInterval >= 0.0) {
     // start() was called before, therefore location() is already set.
     // m_nextFireInterval is only set in suspend() if the Timer was active.
     start(m_nextFireInterval, m_repeatInterval, location());
     m_nextFireInterval = kNextFireIntervalInvalid;
   }
 }
 
 }  // namespace blink