CSSValue Immediates: Make CSSPrimitiveValue a container

Source/core/animation/DoubleStyleInterpolationTest.cpp

Index: Source/core/animation/DoubleStyleInterpolationTest.cpp
diff --git a/Source/core/animation/DoubleStyleInterpolationTest.cpp b/Source/core/animation/DoubleStyleInterpolationTest.cpp
index 7eba8236a4487fd1de6e539a3eede65e9a1741f6..509e624d24e17db845167de871330befe34cfb11 100644
--- a/Source/core/animation/DoubleStyleInterpolationTest.cpp
+++ b/Source/core/animation/DoubleStyleInterpolationTest.cpp
@@ -62,15 +62,15 @@ protected:
             EXPECT_EQ(2U, list.length());
             item = list.item(0);
             EXPECT_TRUE(item->isPrimitiveValue());
-            EXPECT_EQ(CSSValueAuto, toCSSPrimitiveValue(item)->getValueID());
+            EXPECT_EQ(CSSValueAuto, toCSSPrimitiveValue(*item).getValueID());
             item = list.item(1);
         } else {
             EXPECT_EQ(1U, list.length());
             item = list.item(0);
         }
         EXPECT_TRUE(item->isPrimitiveValue());
-        EXPECT_EQ(doubleValue, toCSSPrimitiveValue(item)->getDoubleValue());
-        EXPECT_EQ(CSSPrimitiveValue::CSS_DEG, toCSSPrimitiveValue(item)->primitiveType());
+        EXPECT_EQ(doubleValue, toCSSPrimitiveValue(*item).getDoubleValue());
+        EXPECT_EQ(CSSPrimitiveValue::CSS_DEG, toCSSPrimitiveValue(*item).primitiveType());
     }
 
     static InterpolableValue* getCachedValue(Interpolation& interpolation)