Implement CSS3TextDecorations runtime flag in favor of CSS3_TEXT

Source/core/css/CSSParser.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 467 matching lines @@
     case CSSPropertyBorderTopColor:
     case CSSPropertyOutlineColor:
     case CSSPropertyTextLineThroughColor:
     case CSSPropertyTextOverlineColor:
     case CSSPropertyTextUnderlineColor:
     case CSSPropertyWebkitBorderAfterColor:
     case CSSPropertyWebkitBorderBeforeColor:
     case CSSPropertyWebkitBorderEndColor:
     case CSSPropertyWebkitBorderStartColor:
     case CSSPropertyWebkitColumnRuleColor:
-#if ENABLE(CSS3_TEXT)
     case CSSPropertyWebkitTextDecorationColor:
-#endif // CSS3_TEXT
     case CSSPropertyWebkitTextEmphasisColor:
     case CSSPropertyWebkitTextFillColor:
     case CSSPropertyWebkitTextStrokeColor:
         return true;
     default:
         return false;
     }
 }
 
 static bool parseColorValue(StylePropertySet* declaration, CSSPropertyID propertyId, const String& string, bool important, CSSParserMode cssParserMode)
@@ skipping 1376 matching lines @@
     case CSSPropertyBorderLeftColor:
     case CSSPropertyWebkitBorderStartColor:
     case CSSPropertyWebkitBorderEndColor:
     case CSSPropertyWebkitBorderBeforeColor:
     case CSSPropertyWebkitBorderAfterColor:
     case CSSPropertyColor: // <color> | inherit
     case CSSPropertyTextLineThroughColor: // CSS3 text decoration colors
     case CSSPropertyTextUnderlineColor:
     case CSSPropertyTextOverlineColor:
     case CSSPropertyWebkitColumnRuleColor:
-#if ENABLE(CSS3_TEXT)
     case CSSPropertyWebkitTextDecorationColor:
-#endif // CSS3_TEXT
     case CSSPropertyWebkitTextEmphasisColor:
     case CSSPropertyWebkitTextFillColor:
     case CSSPropertyWebkitTextStrokeColor:
+        if (propId == CSSPropertyWebkitTextDecorationColor
+            && !RuntimeEnabledFeatures::css3TextDecorationsEnabled())
+            return false;
+
         if (id == CSSValueWebkitText)
             validPrimitive = true; // Always allow this, even when strict parsing is on,
                                     // since we use this in our UA sheets.
         else if (id == CSSValueCurrentcolor)
             validPrimitive = true;
         else if ((id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu ||
              (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
             validPrimitive = true;
         } else {
             parsedValue = parseColor();
@@ skipping 272 matching lines @@
     {
         parsedValue = parseFontFamily();
         break;
     }
 
     case CSSPropertyTextDecoration:
     case CSSPropertyWebkitTextDecorationsInEffect:
         // none | [ underline || overline || line-through || blink ] | inherit
         return parseTextDecoration(propId, important);
 
-#if ENABLE(CSS3_TEXT)
     case CSSPropertyWebkitTextDecorationLine:
+        if (!RuntimeEnabledFeatures::css3TextDecorationsEnabled())
+            return false;
         // none | [ underline || overline || line-through ] | inherit
         return parseTextDecoration(propId, important);
 
     case CSSPropertyWebkitTextDecorationStyle:
+        if (!RuntimeEnabledFeatures::css3TextDecorationsEnabled())
+            return false;
         // solid | double | dotted | dashed | wavy
         if (id == CSSValueSolid || id == CSSValueDouble || id == CSSValueDotted || id == CSSValueDashed || id == CSSValueWavy)
             validPrimitive = true;
         break;
 
     case CSSPropertyWebkitTextUnderlinePosition:
+        if (!RuntimeEnabledFeatures::css3TextDecorationsEnabled())
+            return false;
         // auto | alphabetic | under
         return parseTextUnderlinePosition(important);
-#endif // CSS3_TEXT
 
     case CSSPropertyZoom:          // normal | reset | document | <number> | <percentage> | inherit
         if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument)
             validPrimitive = true;
         else
             validPrimitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg, CSSStrictMode));
         break;
 
     case CSSPropertySrc: // Only used within @font-face and @-webkit-filter, so cannot use inherit | initial or be !important. This is a list of urls or local references.
         if (m_inFilterRule)
@@ skipping 6598 matching lines @@
         default:
             ASSERT_NOT_REACHED();
             return false;
     }
 
     return value;
 }
 
 void CSSParser::addTextDecorationProperty(CSSPropertyID propId, PassRefPtr<CSSValue> value, bool important)
 {
-#if ENABLE(CSS3_TEXT)
     // The text-decoration-line property takes priority over text-decoration, unless the latter has important priority set.
     if (propId == CSSPropertyTextDecoration && !important && m_currentShorthand == CSSPropertyInvalid) {
         for (unsigned i = 0; i < m_parsedProperties.size(); ++i) {
             if (m_parsedProperties[i].id() == CSSPropertyWebkitTextDecorationLine)
                 return;
         }
     }
-#endif // CSS3_TEXT
     addProperty(propId, value, important);
 }
 
 bool CSSParser::parseTextDecoration(CSSPropertyID propId, bool important)
 {
     CSSParserValue* value = m_valueList->current();
     if (value->id == CSSValueNone) {
         addTextDecorationProperty(propId, cssValuePool().createIdentifierValue(CSSValueNone), important);
         m_valueList->next();
         return true;
     }
 
     RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     bool isValid = true;
     while (isValid && value) {
         switch (value->id) {
         case CSSValueBlink:
-#if ENABLE(CSS3_TEXT)
             // Blink value is not accepted by -webkit-text-decoration-line.
             isValid = propId != CSSPropertyWebkitTextDecorationLine;
             if (isValid)
                 list->append(cssValuePool().createIdentifierValue(value->id));
             break;
-#endif // CSS3_TEXT
         case CSSValueUnderline:
         case CSSValueOverline:
         case CSSValueLineThrough:
             list->append(cssValuePool().createIdentifierValue(value->id));
             break;
         default:
             isValid = false;
             break;
         }
         if (isValid)
             value = m_valueList->next();
     }
 
     if (list->length() && isValid) {
         addTextDecorationProperty(propId, list.release(), important);
         return true;
     }
 
     return false;
 }
 
-#if ENABLE(CSS3_TEXT)
 bool CSSParser::parseTextUnderlinePosition(bool important)
 {
     // The text-underline-position property has sintax "auto | alphabetic | [ under || [ left | right ] ]".
     // However, values 'left' and 'right' are not implemented yet, so we will parse sintax
     // "auto | alphabetic | under" for now.
     CSSParserValue* value = m_valueList->current();
     switch (value->id) {
     case CSSValueAuto:
     case CSSValueAlphabetic:
     case CSSValueUnder:
         if (m_valueList->next())
             return false;
 
         addProperty(CSSPropertyWebkitTextUnderlinePosition, cssValuePool().createIdentifierValue(value->id), important);
         return true;
     }
     return false;
 }
-#endif // CSS3_TEXT
 
 bool CSSParser::parseTextEmphasisStyle(bool important)
 {
     unsigned valueListSize = m_valueList->size();
 
     RefPtr<CSSPrimitiveValue> fill;
     RefPtr<CSSPrimitiveValue> shape;
 
     for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
         if (value->unit == CSSPrimitiveValue::CSS_STRING) {
@@ skipping 2775 matching lines @@
 {
     // The tokenizer checks for the construct of an+b.
     // However, since the {ident} rule precedes the {nth} rule, some of those
     // tokens are identified as string literal. Furthermore we need to accept
     // "odd" and "even" which does not match to an+b.
     return equalIgnoringCase(token, "odd") || equalIgnoringCase(token, "even")
         || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n");
 }
 
 }