CSS Custom Properties (Variables)

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 d8a94be96cb0712b2e146f95e0c2bab34ab8f683..dfead28e44edf0fd8d0c032c3e4c4ad43c4e9106 100644
--- a/Source/core/css/CSSValue.cpp
+++ b/Source/core/css/CSSValue.cpp
@@ -33,6 +33,7 @@
 #include "core/css/CSSContentDistributionValue.h"
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSCursorImageValue.h"
+#include "core/css/CSSCustomVariableValue.h"
 #include "core/css/CSSFontFaceSrcValue.h"
 #include "core/css/CSSFontFeatureValue.h"
 #include "core/css/CSSFunctionValue.h"
@@ -150,6 +151,8 @@ bool CSSValue::equals(const CSSValue& other) const
             return compareCSSValues<CSSSVGDocumentValue>(*this, other);
         case CSSContentDistributionClass:
             return compareCSSValues<CSSContentDistributionValue>(*this, other);
+        case VariableClass:
+            return compareCSSValues<CSSCustomVariableValue>(*this, other);
         default:
             ASSERT_NOT_REACHED();
             return false;
@@ -217,6 +220,8 @@ String CSSValue::cssText() const
         return toCSSSVGDocumentValue(this)->customCSSText();
     case CSSContentDistributionClass:
         return toCSSContentDistributionValue(this)->customCSSText();
+    case VariableClass:
+        return String();
     }
     ASSERT_NOT_REACHED();
     return String();
@@ -309,6 +314,9 @@ void CSSValue::destroy()
     case CSSContentDistributionClass:
         delete toCSSContentDistributionValue(this);
         return;
+    case VariableClass:
+        delete toCSSCustomVariableValue(this);
+        return;
     }
     ASSERT_NOT_REACHED();
 }
@@ -400,6 +408,8 @@ void CSSValue::finalizeGarbageCollectedObject()
     case CSSContentDistributionClass:
         toCSSContentDistributionValue(this)->~CSSContentDistributionValue();
         return;
+    case VariableClass:
+        return;
     }
     ASSERT_NOT_REACHED();
 }
@@ -491,6 +501,8 @@ DEFINE_TRACE(CSSValue)
     case CSSContentDistributionClass:
         toCSSContentDistributionValue(this)->traceAfterDispatch(visitor);
         return;
+    case VariableClass:
+        return;
     }
     ASSERT_NOT_REACHED();
 }