Make UseCounters work on aliased properties

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 942 matching lines @@
 
 static PassRefPtrWillBeRawPtr<CSSValue> createTransitionPropertyValue(const CSSTransitionData::TransitionProperty& property)
 {
     if (property.propertyType == CSSTransitionData::TransitionNone)
         return cssValuePool().createIdentifierValue(CSSValueNone);
     if (property.propertyType == CSSTransitionData::TransitionAll)
         return cssValuePool().createIdentifierValue(CSSValueAll);
     if (property.propertyType == CSSTransitionData::TransitionUnknown)
         return cssValuePool().createValue(property.propertyString, CSSPrimitiveValue::CSS_CUSTOM_IDENT);
     ASSERT(property.propertyType == CSSTransitionData::TransitionSingleProperty);
-    return cssValuePool().createValue(getPropertyNameString(property.propertyId), CSSPrimitiveValue::CSS_CUSTOM_IDENT);
+    return cssValuePool().createValue(getPropertyNameString(property.unresolvedProperty), CSSPrimitiveValue::CSS_CUSTOM_IDENT);
 }
 
 static PassRefPtrWillBeRawPtr<CSSValue> valueForTransitionProperty(const CSSTransitionData* transitionData)
 {
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
     if (transitionData) {
         for (size_t i = 0; i < transitionData->propertyList().size(); ++i)
             list->append(createTransitionPropertyValue(transitionData->propertyList()[i]));
     } else {
         list->append(cssValuePool().createIdentifierValue(CSSValueAll));
@@ skipping 1592 matching lines @@
         return zoomAdjustedPixelValueForLength(svgStyle.y(), style);
     case CSSPropertyR:
         return zoomAdjustedPixelValueForLength(svgStyle.r(), style);
     case CSSPropertyRx:
         return zoomAdjustedPixelValueForLength(svgStyle.rx(), style);
     case CSSPropertyRy:
         return zoomAdjustedPixelValueForLength(svgStyle.ry(), style);
 
     case CSSPropertyAll:
         return nullptr;
+    default:
+        break;
     }
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
 }