CSS Custom Properties (Variables)

Source/core/css/ComputedStyleCSSValueMapping.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ skipping 2620 matching lines @@
     case CSSPropertyScrollSnapType:
         return cssValuePool().createValue(style.scrollSnapType());
     case CSSPropertyScrollSnapPointsX:
         return valueForScrollSnapPoints(style.scrollSnapPointsX(), style);
     case CSSPropertyScrollSnapPointsY:
         return valueForScrollSnapPoints(style.scrollSnapPointsY(), style);
     case CSSPropertyScrollSnapCoordinate:
         return valueForScrollSnapCoordinate(style.scrollSnapCoordinate(), style);
     case CSSPropertyScrollSnapDestination:
         return valueForScrollSnapDestination(style.scrollSnapDestination(), style);
-
+    case CSSPropertyVariable:
+        ASSERT_NOT_REACHED();
+        return nullptr;
     case CSSPropertyAll:
         return nullptr;
     default:
         break;
     }
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
 }