Allow assertions to be enabled in Blink Release builds.

Source/core/page/FocusController.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * 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 156 matching lines @@
                 document->focusedElement()->dispatchFocusInEvent(EventTypeNames::DOMFocusIn, 0);
         }
     }
 }
 
 static inline bool hasCustomFocusLogic(Element* element)
 {
     return element->isHTMLElement() && toHTMLElement(element)->hasCustomFocusLogic();
 }
 
-#if ASSERT_ENABLED
+#if ENABLE(ASSERT)
 static inline bool isNonFocusableShadowHost(Node* node)
 {
     ASSERT(node);
     if (!node->isElementNode())
         return false;
     Element* element = toElement(node);
     return !element->isFocusable() && isShadowHost(element) && !hasCustomFocusLogic(element);
 }
 #endif
 
@@ skipping 732 matching lines @@
         startingRect = nodeRectInAbsoluteCoordinates(container, true /* ignore border */);
         container = scrollableEnclosingBoxOrParentFrameForNodeInDirection(type, container);
         if (container && container->isDocumentNode())
             toDocument(container)->updateLayoutIgnorePendingStylesheets();
     } while (!consumed && container);
 
     return consumed;
 }
 
 } // namespace WebCore