1 files changed, 48 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/animation/interpolation/LegacyStyleInterpolation.h b/chromium/third_party/WebKit/Source/core/animation/interpolation/LegacyStyleInterpolation.h
new file mode 100644
index 00000000000..d16bd994f4a
--- /dev/null
+++ b/chromium/third_party/WebKit/Source/core/animation/interpolation/LegacyStyleInterpolation.h
@@ -0,0 +1,48 @@
+// 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.
+
+#ifndef LegacyStyleInterpolation_h
+#define LegacyStyleInterpolation_h
+
+#include "core/animation/interpolation/StyleInterpolation.h"
+#include "core/css/resolver/AnimatedStyleBuilder.h"
+
+namespace WebCore {
+
+class LegacyStyleInterpolation : public StyleInterpolation {
+public:
+    static PassRefPtrWillBeRawPtr<LegacyStyleInterpolation> create(PassRefPtrWillBeRawPtr<AnimatableValue> start, PassRefPtrWillBeRawPtr<AnimatableValue> end, CSSPropertyID id)
+    {
+        return adoptRefWillBeNoop(new LegacyStyleInterpolation(InterpolableAnimatableValue::create(start), InterpolableAnimatableValue::create(end), id));
+    }
+
+    virtual void apply(StyleResolverState& state) const OVERRIDE
+    {
+        AnimatedStyleBuilder::applyProperty(m_id, state, currentValue().get());
+    }
+
+    virtual bool isLegacyStyleInterpolation() const OVERRIDE FINAL { return true; }
+    PassRefPtrWillBeRawPtr<AnimatableValue> currentValue() const
+    {
+        InterpolableAnimatableValue* value = static_cast<InterpolableAnimatableValue*>(m_cachedValue.get());
+        return value->value();
+    }
+
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        StyleInterpolation::trace(visitor);
+    }
+
+private:
+    LegacyStyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id)
+        : StyleInterpolation(start, end, id)
+    {
+    }
+};
+
+DEFINE_TYPE_CASTS(LegacyStyleInterpolation, Interpolation, value, value->isLegacyStyleInterpolation(), value.isLegacyStyleInterpolation());
+
+}
+
+#endif