Animation: Fix loss of type information when interpolating value of 0

Source/core/animation/LengthPoint3DStyleInterpolationTest.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/LengthPoint3DStyleInterpolation.h"
 
 #include "core/animation/LengthStyleInterpolation.h"
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/StylePropertySet.h"
@@ skipping 40 matching lines @@
     }
 };
 
 TEST_F(AnimationLengthPoint3DStyleInterpolationTest, ZeroPoint3D)
 {
     RefPtrWillBeRawPtr<CSSValueList> lengthPoint3D = CSSValueList::createCommaSeparated();
     lengthPoint3D->append(CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_PX));
     lengthPoint3D->append(CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_EMS));
     lengthPoint3D->append(CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_PERCENTAGE));
     RefPtrWillBeRawPtr<CSSValue> value = roundTrip(lengthPoint3D.release());
-    testPrimitiveValue(value, 0, 0, 0, CSSPrimitiveValue::CSS_PX, CSSPrimitiveValue::CSS_PX, CSSPrimitiveValue::CSS_PX);
+    testPrimitiveValue(value, 0, 0, 0, CSSPrimitiveValue::CSS_PX, CSSPrimitiveValue::CSS_EMS, CSSPrimitiveValue::CSS_PERCENTAGE);
 }
 
 TEST_F(AnimationLengthPoint3DStyleInterpolationTest, SingleUnitPoint3D)
 {
     RefPtrWillBeRawPtr<CSSValueList> lengthPoint3D = CSSValueList::createCommaSeparated();
     lengthPoint3D->append(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX));
     lengthPoint3D->append(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PERCENTAGE));
     lengthPoint3D->append(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_EMS));
     RefPtrWillBeRawPtr<CSSValue> value = roundTrip(lengthPoint3D.release());
     testPrimitiveValue(value, 10, 10, 10, CSSPrimitiveValue::CSS_PX, CSSPrimitiveValue::CSS_PERCENTAGE, CSSPrimitiveValue::CSS_EMS);
 }
 
 TEST_F(AnimationLengthPoint3DStyleInterpolationTest, MultipleValuePoint3D)
 {
     RefPtrWillBeRawPtr<CSSValueList> lengthPoint3DPx = CSSValueList::createCommaSeparated();
     lengthPoint3DPx->append(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX));
     lengthPoint3DPx->append(CSSPrimitiveValue::create(30, CSSPrimitiveValue::CSS_PERCENTAGE));
     lengthPoint3DPx->append(CSSPrimitiveValue::create(20, CSSPrimitiveValue::CSS_EMS));
     RefPtrWillBeRawPtr<CSSValue> value = roundTrip(lengthPoint3DPx.release());
     testPrimitiveValue(value, 10, 30, 20, CSSPrimitiveValue::CSS_PX, CSSPrimitiveValue::CSS_PERCENTAGE, CSSPrimitiveValue::CSS_EMS);
 }
 
 }