Remove value packing and custom style building for text-underline-position.

Source/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 1038 matching lines @@
 
     if (primitiveValue->getValueID() == CSSValueFilled || primitiveValue->getValueID() == CSSValueOpen) {
         state.style()->setTextEmphasisFill(*primitiveValue);
         state.style()->setTextEmphasisMark(TextEmphasisMarkAuto);
     } else {
         state.style()->setTextEmphasisFill(TextEmphasisFillFilled);
         state.style()->setTextEmphasisMark(*primitiveValue);
     }
 }
 
-void StyleBuilderFunctions::applyValueCSSPropertyTextUnderlinePosition(StyleResolverState& state, CSSValue* value)
-{
-    // This is true if value is 'auto' or 'alphabetic'.
-    if (value->isPrimitiveValue()) {
-        TextUnderlinePosition t = *toCSSPrimitiveValue(value);
-        state.style()->setTextUnderlinePosition(t);
-        return;
-    }
-
-    unsigned t = 0;
-    for (CSSValueListIterator i(value); i.hasMore(); i.advance()) {
-        CSSValue* item = i.value();
-        TextUnderlinePosition t2 = *toCSSPrimitiveValue(item);
-        t |= t2;
-    }
-    state.style()->setTextUnderlinePosition(static_cast<TextUnderlinePosition>(t));
-}
-
 void StyleBuilderFunctions::applyInitialCSSPropertyWillChange(StyleResolverState& state)
 {
     state.style()->setWillChangeContents(false);
     state.style()->setWillChangeScrollPosition(false);
     state.style()->setWillChangeProperties(Vector<CSSPropertyID>());
     state.style()->setSubtreeWillChangeContents(state.parentStyle()->subtreeWillChangeContents());
 }
 
 void StyleBuilderFunctions::applyInheritCSSPropertyWillChange(StyleResolverState& state)
 {
@@ skipping 353 matching lines @@
         break;
     default:
         ASSERT_NOT_REACHED();
         break;
     }
 
     state.style()->setGridAutoFlow(autoFlow);
 }
 
 } // namespace blink