Remove left-overs from -webkit-marquee-speed removal.

Source/core/css/parser/CSSPropertyParser.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
@@ skipping 1106 matching lines @@
     case CSSPropertyInternalMarqueeIncrement:
         validPrimitive = validUnit(value, FLength | FPercent);
         break;
     case CSSPropertyInternalMarqueeRepetition:
         if (id == CSSValueInfinite)
             validPrimitive = true;
         else
             validPrimitive = validUnit(value, FInteger | FNonNeg);
         break;
     case CSSPropertyInternalMarqueeSpeed:
-        if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast)
-            validPrimitive = true;
-        else
-            validPrimitive = validUnit(value, FTime | FInteger | FNonNeg);
+        validPrimitive = validUnit(value, FInteger | FNonNeg);
         break;
     case CSSPropertyTransform:
     case CSSPropertyWebkitTransform:
         if (id == CSSValueNone)
             validPrimitive = true;
         else {
             RefPtrWillBeRawPtr<CSSValue> transformValue = parseTransform(propId);
             if (transformValue) {
                 addProperty(propId, transformValue.release(), important);
                 return true;
@@ skipping 7395 matching lines @@
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill));
     if (!seenStroke)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke));
     if (!seenMarkers)
         parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers));
 
     return parsedValues.release();
 }
 
 } // namespace blink