Replace compile flag with runtime check for text-underline-position

Source/core/css/CSSPrimitiveValueMappings.h

 /*
  * Copyright (C) 2007 Alexey Proskuryakov <ap@nypop.com>.
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 2485 matching lines @@
     case CSSValueWavy:
         return TextDecorationStyleWavy;
     default:
         break;
     }
 
     ASSERT_NOT_REACHED();
     return TextDecorationStyleSolid;
 }
 
-#if ENABLE(CSS3_TEXT)
 template<> inline CSSPrimitiveValue::CSSPrimitiveValue(TextUnderlinePosition e)
     : CSSValue(PrimitiveClass)
 {
     m_primitiveUnitType = CSS_VALUE_ID;
     switch (e) {
     case TextUnderlinePositionAuto:
         m_value.valueID = CSSValueAuto;
         break;
     case TextUnderlinePositionAlphabetic:
         m_value.valueID = CSSValueAlphabetic;
@@ skipping 18 matching lines @@
         return TextUnderlinePositionUnder;
     default:
         break;
     }
 
     // FIXME: Implement support for 'under left' and 'under right' values.
 
     ASSERT_NOT_REACHED();
     return TextUnderlinePositionAuto;
 }
-#endif // CSS3_TEXT
 
 template<> inline CSSPrimitiveValue::CSSPrimitiveValue(ETextSecurity e)
     : CSSValue(PrimitiveClass)
 {
     m_primitiveUnitType = CSS_VALUE_ID;
     switch (e) {
     case TSNONE:
         m_value.valueID = CSSValueNone;
         break;
     case TSDISC:
@@ skipping 2410 matching lines @@
         break;
     }
 
     ASSERT_NOT_REACHED();
     return TouchActionDelayNone;
 }
 
 }
 
 #endif