Partial implementation of CSSVariablesMap for CSS Variables CSSOM

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index c72643e50dc939b355312672aab8077f2b6b0d7e..6e0b0c2f34971629b3e82c4ca65c7969d0603bfb 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -2334,10 +2334,13 @@ void StyleResolver::resolveVariables(CSSPropertyID id, CSSValue* value, Vector<s
 
     for (unsigned i = 0; i < resultSet->propertyCount(); i++) {
         StylePropertySet::PropertyReference property = resultSet->propertyAt(i);
-        if (property.id() != CSSPropertyVariable && hasVariableReference(property.value()))
+        if (property.id() != CSSPropertyVariable && hasVariableReference(property.value())) {
             resolveVariables(property.id(), property.value(), knownExpressions);
-        else
+        } else {
             applyProperty(property.id(), property.value());
+            // All properties become dependent their parent style when they use variables.
+            m_state.style()->setHasExplicitlyInheritedProperties();

[esprehn, 2013/07/04 02:48:52]

This doesn't seem related to the patch?

[alancutter (OOO until 2018), 2013/07/04 06:18:14]

This fixes a bug which is only observable when CSSOM is introduced and  CSS
values are changed at runtime.
I could fix it in a separate patch but I would not be able to add test cases for
it. The tests that come with this patch test that the bug is fixed.

+        }
     }
 }