Implement CSS3TextDecorations runtime flag in favor of CSS3_TEXT

Source/core/css/CSSComputedStyleDeclaration.cpp

Index: Source/core/css/CSSComputedStyleDeclaration.cpp
diff --git a/Source/core/css/CSSComputedStyleDeclaration.cpp b/Source/core/css/CSSComputedStyleDeclaration.cpp
index c13bfc1b8ef18db4426959a414d9ba7affa7d958..1cbd0a6eeeae96b1de153d10773d277f2d71c59d 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.cpp
+++ b/Source/core/css/CSSComputedStyleDeclaration.cpp
@@ -175,18 +175,18 @@ static const CSSPropertyID staticComputableProperties[] = {
     CSSPropertyTabSize,
     CSSPropertyTextAlign,
     CSSPropertyTextDecoration,
+    CSSPropertyTextDecorationLine,
+    CSSPropertyTextDecorationStyle,
+    CSSPropertyTextDecorationColor,
 #if ENABLE(CSS3_TEXT)
-    CSSPropertyWebkitTextDecorationLine,
-    CSSPropertyWebkitTextDecorationStyle,
-    CSSPropertyWebkitTextDecorationColor,
     CSSPropertyWebkitTextAlignLast,
-    CSSPropertyWebkitTextUnderlinePosition,
 #endif // CSS3_TEXT
     CSSPropertyTextIndent,
     CSSPropertyTextRendering,
     CSSPropertyTextShadow,
     CSSPropertyTextOverflow,
     CSSPropertyTextTransform,
+    CSSPropertyTextUnderlinePosition,
     CSSPropertyTop,
     CSSPropertyTransitionDelay,
     CSSPropertyTransitionDuration,
@@ -1322,7 +1322,6 @@ static PassRefPtr<CSSValue> renderTextDecorationFlagsToCSSValue(int textDecorati
     return list;
 }
 
-#if ENABLE(CSS3_TEXT)
 static PassRefPtr<CSSValue> renderTextDecorationStyleFlagsToCSSValue(TextDecorationStyle textDecorationStyle)
 {
     switch (textDecorationStyle) {
@@ -1341,7 +1340,6 @@ static PassRefPtr<CSSValue> renderTextDecorationStyleFlagsToCSSValue(TextDecorat
     ASSERT_NOT_REACHED();
     return cssValuePool().createExplicitInitialValue();
 }
-#endif // CSS3_TEXT
 
 static PassRefPtr<CSSValue> fillRepeatToCSSValue(EFillRepeat xRepeat, EFillRepeat yRepeat)
 {
@@ -2133,17 +2131,17 @@ PassRefPtr<CSSValue> CSSComputedStyleDeclaration::getPropertyCSSValue(CSSPropert
         case CSSPropertyTextDecoration:
             return renderTextDecorationFlagsToCSSValue(style->textDecoration());
 #if ENABLE(CSS3_TEXT)
-        case CSSPropertyWebkitTextDecorationLine:
+        case CSSPropertyWebkitTextAlignLast:
+            return cssValuePool().createValue(style->textAlignLast());
+#endif // CSS3_TEXT
+        case CSSPropertyTextDecorationLine:
             return renderTextDecorationFlagsToCSSValue(style->textDecoration());
-        case CSSPropertyWebkitTextDecorationStyle:
+        case CSSPropertyTextDecorationStyle:
             return renderTextDecorationStyleFlagsToCSSValue(style->textDecorationStyle());
-        case CSSPropertyWebkitTextDecorationColor:
+        case CSSPropertyTextDecorationColor:
             return currentColorOrValidColor(style.get(), style->textDecorationColor());
-        case CSSPropertyWebkitTextAlignLast:
-            return cssValuePool().createValue(style->textAlignLast());
-        case CSSPropertyWebkitTextUnderlinePosition:
+        case CSSPropertyTextUnderlinePosition:
             return cssValuePool().createValue(style->textUnderlinePosition());
-#endif // CSS3_TEXT
         case CSSPropertyWebkitTextDecorationsInEffect:
             return renderTextDecorationFlagsToCSSValue(style->textDecorationsInEffect());
         case CSSPropertyWebkitTextFillColor: