Allow assertions to be enabled in Blink Release builds.

Source/platform/fonts/GlyphPageTreeNode.cpp

 /*
  * Copyright (C) 2006, 2007, 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
@@ skipping 43 matching lines @@
         pageZeroRoot = new GlyphPageTreeNode;
     }
 
     if (!pageNumber)
         return pageZeroRoot;
 
     if (GlyphPageTreeNode* foundNode = roots->get(pageNumber))
         return foundNode;
 
     GlyphPageTreeNode* node = new GlyphPageTreeNode;
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     node->m_pageNumber = pageNumber;
 #endif
     roots->set(pageNumber, node);
     return node;
 }
 
 size_t GlyphPageTreeNode::treeGlyphPageCount()
 {
     size_t count = 0;
     if (roots) {
@@ skipping 240 matching lines @@
         return foundChild;
 
     GlyphPageTreeNode* child = new GlyphPageTreeNode;
     child->m_parent = this;
     child->m_level = m_level + 1;
     if (fontData && fontData->isCustomFont()) {
         for (GlyphPageTreeNode* curr = this; curr; curr = curr->m_parent)
             curr->m_customFontCount++;
     }
 
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     child->m_pageNumber = m_pageNumber;
 #endif
     if (fontData) {
         m_children.set(fontData, adoptPtr(child));
         fontData->setMaxGlyphPageTreeLevel(max(fontData->maxGlyphPageTreeLevel(), child->m_level));
     } else {
         m_systemFallbackChild = adoptPtr(child);
         child->m_isSystemFallback = true;
     }
     child->initializePage(fontData, pageNumber);
@@ skipping 78 matching lines @@
         printf("\nPage %d:\n", it->key);
         showGlyphPageTree(it->key);
     }
 }
 
 void showGlyphPageTree(unsigned pageNumber)
 {
     WebCore::GlyphPageTreeNode::getRoot(pageNumber)->showSubtree();
 }
 #endif