CSSValue Immediates: Replace CSSPrimitiveValue usage with const references

Source/core/css/BasicShapeFunctions.cpp

Index: Source/core/css/BasicShapeFunctions.cpp
diff --git a/Source/core/css/BasicShapeFunctions.cpp b/Source/core/css/BasicShapeFunctions.cpp
index 5eb0551bca491aae11e08e580c8b8fe7ec4a278a..1c6f3be915397f79c267b8cccfa62b137fb87445 100644
--- a/Source/core/css/BasicShapeFunctions.cpp
+++ b/Source/core/css/BasicShapeFunctions.cpp
@@ -133,7 +133,7 @@ static Length convertToLength(const StyleResolverState& state, NullableCSSValue
 {
     if (!value)
         return Length(0, Fixed);
-    return toCSSPrimitiveValue(*value).convertToLength(state.cssToLengthConversionData());
+    return toCSSPrimitiveValue(value).convertToLength(state.cssToLengthConversionData());
 }
 
 static LengthSize convertToLengthSize(const StyleResolverState& state, NullableCSSValue value)
@@ -141,7 +141,7 @@ static LengthSize convertToLengthSize(const StyleResolverState& state, NullableC
     if (!value)
         return LengthSize(Length(0, Fixed), Length(0, Fixed));
 
-    Pair* pair = toCSSPrimitiveValue(*value).getPairValue();
+    Pair* pair = toCSSPrimitiveValue(value).getPairValue();
     return LengthSize(convertToLength(state, pair->first()), convertToLength(state, pair->second()));
 }
 
@@ -153,10 +153,10 @@ static BasicShapeCenterCoordinate convertToCenterCoordinate(const StyleResolverS
     CSSValueID keyword = CSSValueTop;
     if (!value) {
         keyword = CSSValueCenter;
-    } else if (toCSSPrimitiveValue(*value).isValueID()) {
-        keyword = toCSSPrimitiveValue(*value).getValueID();
-    } else if (Pair* pair = toCSSPrimitiveValue(*value).getPairValue()) {
-        keyword = toCSSPrimitiveValue(*pair->first()).getValueID();
+    } else if (toCSSPrimitiveValue(value).isValueID()) {
+        keyword = toCSSPrimitiveValue(value).getValueID();
+    } else if (Pair* pair = toCSSPrimitiveValue(value).getPairValue()) {
+        keyword = pair->first().getValueID();
         offset = convertToLength(state, pair->second());
     } else {
         offset = convertToLength(state, value);
@@ -189,8 +189,8 @@ static BasicShapeRadius cssValueToBasicShapeRadius(const StyleResolverState& sta
     if (!radius)
         return BasicShapeRadius(BasicShapeRadius::ClosestSide);
 
-    if (toCSSPrimitiveValue(*radius).isValueID()) {
-        switch (toCSSPrimitiveValue(*radius).getValueID()) {
+    if (toCSSPrimitiveValue(radius).isValueID()) {
+        switch (toCSSPrimitiveValue(radius).getValueID()) {
         case CSSValueClosestSide:
             return BasicShapeRadius(BasicShapeRadius::ClosestSide);
         case CSSValueFarthestSide: