CSSStyleDeclaration::setProperty should override important style

Source/core/css/resolver/ViewportStyleResolver.cpp

Index: Source/core/css/resolver/ViewportStyleResolver.cpp
diff --git a/Source/core/css/resolver/ViewportStyleResolver.cpp b/Source/core/css/resolver/ViewportStyleResolver.cpp
index be412e3f1b13d80007d3f7ca58cdc2fbabcc5122..5d47d3a59ca32111d1fb2d7d19d27f2659950e8f 100644
--- a/Source/core/css/resolver/ViewportStyleResolver.cpp
+++ b/Source/core/css/resolver/ViewportStyleResolver.cpp
@@ -97,9 +97,9 @@ void ViewportStyleResolver::addViewportRule(StyleRuleViewport* viewportRule, Ori
     }
 
     // We cannot use mergeAndOverrideOnConflict() here because it doesn't
-    // respect the !important declaration (but addParsedProperty() does).
+    // respect the !important declaration (but addRespectingCascade() does).
     for (unsigned i = 0; i < propertyCount; ++i)
-        m_propertySet->addParsedProperty(propertySet.propertyAt(i).toCSSProperty());
+        m_propertySet->addRespectingCascade(propertySet.propertyAt(i).toCSSProperty());
 }
 
 void ViewportStyleResolver::resolve()