Remove more scrolling code from Sky

sky/engine/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 2304 matching lines @@
             allowComma = false;
         } else {
             allowComma = true;
             switch (propId) {
                 case CSSPropertyBackgroundColor:
                     currValue = parseBackgroundColor();
                     if (currValue)
                         m_valueList->next();
                     break;
                 case CSSPropertyBackgroundAttachment:
-                    if (val->id == CSSValueScroll || val->id == CSSValueFixed || val->id == CSSValueLocal) {
+                    if (val->id == CSSValueFixed || val->id == CSSValueLocal) {
                         currValue = cssValuePool().createIdentifierValue(val->id);
                         m_valueList->next();
                     }
                     break;
                 case CSSPropertyBackgroundImage:
                 case CSSPropertyWebkitMaskImage:
                     if (parseFillImage(m_valueList, currValue))
                         m_valueList->next();
                     break;
                 case CSSPropertyWebkitBackgroundClip:
@@ skipping 3026 matching lines @@
         } else {
             switch (currentValue->id) {
             case CSSValueNone:
             case CSSValueAll:
             case CSSValueAuto:
             case CSSValueDefault:
             case CSSValueInitial:
             case CSSValueInherit:
                 return nullptr;
             case CSSValueContents:
-            case CSSValueScrollPosition:
                 values->append(cssValuePool().createIdentifierValue(currentValue->id));
                 break;
             default:
                 break;
             }
         }
 
         if (!m_valueList->next())
             break;
         if (!consumeComma(m_valueList))
@@ skipping 726 matching lines @@
         || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n");
 }
 
 bool CSSPropertyParser::isSystemColor(int id)
 {
     // FIXME(sky): remove
     return false;
 }
 
 } // namespace blink