Allow assertions to be enabled in Blink Release builds.

Source/platform/Timer.cpp

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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
@@ skipping 173 matching lines @@
 }
 
 // ----------------
 
 TimerBase::TimerBase()
     : m_nextFireTime(0)
     , m_unalignedNextFireTime(0)
     , m_repeatInterval(0)
     , m_heapIndex(-1)
     , m_cachedThreadGlobalTimerHeap(0)
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     , m_thread(currentThread())
 #endif
 {
 }
 
 TimerBase::~TimerBase()
 {
     stop();
     ASSERT(!inHeap());
 }
@@ skipping 136 matching lines @@
         return false;
     unsigned childIndex1 = 2 * m_heapIndex + 1;
     unsigned childIndex2 = childIndex1 + 1;
     return childHeapPropertyHolds(this, heap, childIndex1) && childHeapPropertyHolds(this, heap, childIndex2);
 }
 
 void TimerBase::updateHeapIfNeeded(double oldTime)
 {
     if (m_nextFireTime && hasValidHeapPosition())
         return;
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     int oldHeapIndex = m_heapIndex;
 #endif
     if (!oldTime)
         heapInsert();
     else if (!m_nextFireTime)
         heapDelete();
     else if (m_nextFireTime < oldTime)
         heapDecreaseKey();
     else
         heapIncreaseKey();
@@ skipping 45 matching lines @@
 }
 
 double TimerBase::nextUnalignedFireInterval() const
 {
     ASSERT(isActive());
     return max(m_unalignedNextFireTime - monotonicallyIncreasingTime(), 0.0);
 }
 
 } // namespace WebCore