Web Animations API: Deferred computation of interpolated values

Source/core/animation/InterpolationTest.cpp

Index: Source/core/animation/InterpolationTest.cpp
diff --git a/Source/core/animation/InterpolationTest.cpp b/Source/core/animation/InterpolationTest.cpp
index 9e01093b232f799b326ffb0d8ab54e8dca5fe9bd..26c23d92a66b97b917a8a6fef8a51deedc9944f7 100644
--- a/Source/core/animation/InterpolationTest.cpp
+++ b/Source/core/animation/InterpolationTest.cpp
@@ -53,16 +53,9 @@ protected:
         return list.release();
     }
 
-    void initLengthArray(CSSLengthArray& lengthArray)
-    {
-        lengthArray.resize(CSSPrimitiveValue::LengthUnitTypeCount);
-        for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; ++i)
-            lengthArray.at(i) = 0;
-    }
-
     CSSLengthArray& setLengthArray(CSSLengthArray& lengthArray, String text)
     {
-        initLengthArray(lengthArray);
+        CSSPrimitiveValue::zeroLengthArray(lengthArray);
         RefPtr<MutableStylePropertySet> propertySet = MutableStylePropertySet::create();
         propertySet->setProperty(CSSPropertyLeft, text);
         toCSSPrimitiveValue(propertySet->getPropertyCSSValue(CSSPropertyLeft).get())->accumulateLengthArray(lengthArray);
@@ -100,7 +93,7 @@ TEST_F(AnimationInterpolationTest, SingleUnit)
 TEST_F(AnimationInterpolationTest, MultipleUnits)
 {
     CSSLengthArray actual, expectation;
-    initLengthArray(expectation);
+    CSSPrimitiveValue::zeroLengthArray(expectation);
     OwnPtrWillBeRawPtr<InterpolableList> list = createInterpolableLength(0, 10, 0, 10, 0, 10, 0, 10, 0, 10);
     toCSSPrimitiveValue(interpolableValueToLength(list.get()).get())->accumulateLengthArray(expectation);
     EXPECT_TRUE(lengthArraysEqual(expectation, setLengthArray(actual, "calc(10%% + 10ex + 10ch + 10vh + 10vmax)")));