Move static methods out of CSSLengthInterpolationType to LengthInterpolationFunctions

third_party/WebKit/Source/core/animation/LengthInterpolationFunctions.h

+// Copyright 2016 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.
+
+#ifndef LengthInterpolationFunctions_h
+#define LengthInterpolationFunctions_h
+
+#include "core/animation/InterpolationValue.h"
+#include "core/animation/PairwiseInterpolationValue.h"
+#include "platform/Length.h"
+#include <memory>
+
+namespace blink {
+
+class CSSToLengthConversionData;
+
+class LengthInterpolationFunctions {
+    STATIC_ONLY(LengthInterpolationFunctions);
+public:
+    static std::unique_ptr<InterpolableValue> createInterpolablePixels(double pixels);
+    static InterpolationValue createInterpolablePercent(double percent);
+    static std::unique_ptr<InterpolableList> createNeutralInterpolableValue();
+
+    static InterpolationValue maybeConvertCSSValue(const CSSValue&);
+    static InterpolationValue maybeConvertLength(const Length&, float zoom);
+    static PairwiseInterpolationValue mergeSingles(InterpolationValue&& start, InterpolationValue&& end);
+    static bool nonInterpolableValuesAreCompatible(const NonInterpolableValue*, const NonInterpolableValue*);
+    static void composite(std::unique_ptr<InterpolableValue>&, RefPtr<NonInterpolableValue>&, double underlyingFraction, const InterpolableValue&, const NonInterpolableValue*);
+    static Length createLength(const InterpolableValue&, const NonInterpolableValue*, const CSSToLengthConversionData&, ValueRange);
+
+    static void subtractFromOneHundredPercent(InterpolationValue& result);
+};
+
+} // namespace blink
+
+#endif // LengthInterpolationFunctions_h