CSSValue Immediates: Replace CSSPrimitiveValue usage with const references

Source/core/animation/DoubleStyleInterpolationTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/animation/DoubleStyleInterpolation.h"
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSValueList.h"
 #include "core/css/StylePropertySet.h"
@@ skipping 44 matching lines @@
 
     static void testValueListMotionRotation(CSSValue value, double doubleValue, bool flag)
     {
         EXPECT_TRUE(value.isValueList());
         const CSSValueList& list = toCSSValueList(value);
         NullableCSSValue item;
         if (flag) {
             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)
     {
         return interpolation.getCachedValueForTesting();
     }
 };
 
 TEST_F(AnimationDoubleStyleInterpolationTest, ZeroValue)
 {
@@ skipping 54 matching lines @@
 TEST_F(AnimationDoubleStyleInterpolationTest, ValueAutoMotionRotation)
 {
     RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     list->append(CSSPrimitiveValue::createIdentifier(CSSValueAuto));
     list->append(CSSPrimitiveValue::create(90, CSSPrimitiveValue::CSS_DEG));
     CSSValue value = roundTripMotionRotation(list.release(), true);
     testValueListMotionRotation(value, 90, true);
 }
 
 }