CSS Custom Properties (Variables)

Source/core/css/ComputedStyleCSSValueMapping.cpp

Index: Source/core/css/ComputedStyleCSSValueMapping.cpp
diff --git a/Source/core/css/ComputedStyleCSSValueMapping.cpp b/Source/core/css/ComputedStyleCSSValueMapping.cpp
index 4c8e0e406815643bab17c6902817f83b2cf36407..895fae6df02415c69d590bbced547a335051b9cb 100644
--- a/Source/core/css/ComputedStyleCSSValueMapping.cpp
+++ b/Source/core/css/ComputedStyleCSSValueMapping.cpp
@@ -2688,6 +2688,9 @@ PassRefPtrWillBeRawPtr<CSSValue> ComputedStyleCSSValueMapping::get(CSSPropertyID
             list->append(cssValuePool().createValue(style.scale()->z(), CSSPrimitiveValue::CSS_NUMBER));
         return list.release();
     }
+    case CSSPropertyVariable:

[alancutter (OOO until 2018), 2015/07/14 06:12:57]

Can't say I'm comfortable with this naming, I have to think a bit extra every
time to make sure you're referring to a custom property and not a var(). I think
it would be clearer if custom properties didn't share the "variable" word.
In the future custom properties have applications beyond being referenced in
var() (CSS property polyfills and Houdini) so I think it's appropriate to not
tie the two together conceptually.

+        ASSERT_NOT_REACHED();
+        return nullptr;
     case CSSPropertyAll:
         return nullptr;
     default: