Revert of Move most of the [Pass]RefPtr's of CSSPrimitiveValue to our transition types.

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 5bd3a01f058e4e19714636f36e4f64e25cb44e16..015a0c080006b51cf2bb752c523219d1bfe531ec 100644
--- a/Source/core/css/BasicShapeFunctions.cpp
+++ b/Source/core/css/BasicShapeFunctions.cpp
@@ -40,7 +40,7 @@
 
 namespace WebCore {
 
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueForCenterCoordinate(CSSValuePool& pool, const RenderStyle& style, const BasicShapeCenterCoordinate& center)
+static PassRefPtr<CSSPrimitiveValue> valueForCenterCoordinate(CSSValuePool& pool, const RenderStyle& style, const BasicShapeCenterCoordinate& center)
 {
     CSSValueID keyword = CSSValueInvalid;
     switch (center.keyword()) {
@@ -63,7 +63,7 @@
     return pool.createValue(Pair::create(pool.createIdentifierValue(keyword), pool.createValue(center.length(), style), Pair::DropIdenticalValues));
 }
 
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> basicShapeRadiusToCSSValue(CSSValuePool& pool, const RenderStyle& style, const BasicShapeRadius& radius)
+static PassRefPtr<CSSPrimitiveValue> basicShapeRadiusToCSSValue(CSSValuePool& pool, const RenderStyle& style, const BasicShapeRadius& radius)
 {
     switch (radius.type()) {
     case BasicShapeRadius::Value:
@@ -238,7 +238,7 @@
     return BasicShapeCenterCoordinate(convertToLength(state, value));
 }
 
-static BasicShapeRadius cssValueToBasicShapeRadius(const StyleResolverState& state, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> radius)
+static BasicShapeRadius cssValueToBasicShapeRadius(const StyleResolverState& state, PassRefPtr<CSSPrimitiveValue> radius)
 {
     if (!radius)
         return BasicShapeRadius(BasicShapeRadius::ClosestSide);