Allow assertions to be enabled in Blink Release builds.

Source/platform/graphics/ImageDecodingStore.cpp

 /*
  * Copyright (C) 2012 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 33 matching lines @@
 
 ImageDecodingStore::ImageDecodingStore()
     : m_heapLimitInBytes(defaultMaxTotalSizeOfHeapEntries)
     , m_heapMemoryUsageInBytes(0)
     , m_discardableMemoryUsageInBytes(0)
 {
 }
 
 ImageDecodingStore::~ImageDecodingStore()
 {
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     setCacheLimitInBytes(0);
     ASSERT(!m_imageCacheMap.size());
     ASSERT(!m_decoderCacheMap.size());
     ASSERT(!m_orderedCacheList.size());
     ASSERT(!m_imageCacheKeyMap.size());
     ASSERT(!m_decoderCacheKeyMap.size());
 #endif
 }
 
 ImageDecodingStore* ImageDecodingStore::instance()
@@ skipping 356 matching lines @@
     }
 }
 
 void ImageDecodingStore::removeFromCacheListInternal(const Vector<OwnPtr<CacheEntry> >& deletionList)
 {
     for (size_t i = 0; i < deletionList.size(); ++i)
         m_orderedCacheList.remove(deletionList[i].get());
 }
 
 } // namespace WebCore