Remove <marquee> leftovers

Source/core/css/CSSComputedStyleDeclaration.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.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 2731 matching lines @@
         case CSSPropertyWebkitTransformOriginZ:
             break;
 
         /* @viewport rule properties */
         case CSSPropertyMaxZoom:
         case CSSPropertyMinZoom:
         case CSSPropertyOrientation:
         case CSSPropertyUserZoom:
             break;
 
-        // Internal properties that shouldn't be exposed throught getComputedStyle.
-        case CSSPropertyInternalMarqueeDirection:
-        case CSSPropertyInternalMarqueeIncrement:
-        case CSSPropertyInternalMarqueeRepetition:
-        case CSSPropertyInternalMarqueeSpeed:
-        case CSSPropertyInternalMarqueeStyle:
-            ASSERT_NOT_REACHED();
-            return nullptr;
-
         case CSSPropertyBufferedRendering:
         case CSSPropertyClipPath:
         case CSSPropertyClipRule:
         case CSSPropertyMask:
         case CSSPropertyEnableBackground:
         case CSSPropertyFilter:
         case CSSPropertyFloodColor:
         case CSSPropertyFloodOpacity:
         case CSSPropertyLightingColor:
         case CSSPropertyStopColor:
@@ skipping 221 matching lines @@
     return list.release();
 }
 
 void CSSComputedStyleDeclaration::trace(Visitor* visitor)
 {
     visitor->trace(m_node);
     CSSStyleDeclaration::trace(visitor);
 }
 
 } // namespace blink