Remove default case from CSSValue::equals

Source/core/css/CSSValue.cpp

Index: Source/core/css/CSSValue.cpp
diff --git a/Source/core/css/CSSValue.cpp b/Source/core/css/CSSValue.cpp
index cae937c0faa8c7177c5b8d4b6ed4faadcb6cc67f..4f9805848f9867caff5fa16af3943f92b8d4b4b2 100644
--- a/Source/core/css/CSSValue.cpp
+++ b/Source/core/css/CSSValue.cpp
@@ -92,7 +92,7 @@ inline static bool compareCSSValues(const CSSValue& first, const CSSValue& secon
 bool CSSValue::equals(const CSSValue& other) const
 {
     if (m_classType == other.m_classType) {
-        switch (m_classType) {
+        switch (classType()) {
         case BorderImageSliceClass:
             return compareCSSValues<CSSBorderImageSliceValue>(*this, other);
         case CanvasClass:
@@ -149,10 +149,9 @@ bool CSSValue::equals(const CSSValue& other) const
             return compareCSSValues<CSSSVGDocumentValue>(*this, other);
         case CSSContentDistributionClass:
             return compareCSSValues<CSSContentDistributionValue>(*this, other);
-        default:
-            ASSERT_NOT_REACHED();
-            return false;
         }
+        ASSERT_NOT_REACHED();
+        return false;
     }
     return false;
 }