1 files changed, 46 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/animation/interpolation/DefaultStyleInterpolation.h b/chromium/third_party/WebKit/Source/core/animation/interpolation/DefaultStyleInterpolation.h
new file mode 100644
index 00000000000..174c12b9fdd
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+++ b/chromium/third_party/WebKit/Source/core/animation/interpolation/DefaultStyleInterpolation.h
@@ -0,0 +1,46 @@
+// 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 DefaultStyleInterpolation_h
+#define DefaultStyleInterpolation_h
+
+#include "core/animation/interpolation/StyleInterpolation.h"
+#include "core/css/resolver/StyleBuilder.h"
+
+namespace WebCore {
+
+class DefaultStyleInterpolation : public StyleInterpolation {
+public:
+    static PassRefPtrWillBeRawPtr<DefaultStyleInterpolation> create(CSSValue* start, CSSValue* end, CSSPropertyID id)
+    {
+        return adoptRefWillBeNoop(new DefaultStyleInterpolation(start, end, id));
+    }
+
+    virtual void apply(StyleResolverState& state) const
+    {
+        StyleBuilder::applyProperty(m_id, state, toInterpolableBool(m_cachedValue.get())->value() ? m_endCSSValue.get() : m_startCSSValue.get());
+    }
+
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        StyleInterpolation::trace(visitor);
+        visitor->trace(m_startCSSValue);
+        visitor->trace(m_endCSSValue);
+    }
+
+private:
+    DefaultStyleInterpolation(CSSValue* start, CSSValue* end, CSSPropertyID id)
+        : StyleInterpolation(InterpolableBool::create(false), InterpolableBool::create(true), id)
+        , m_startCSSValue(start)
+        , m_endCSSValue(end)
+    {
+    }
+
+    RefPtrWillBeMember<CSSValue> m_startCSSValue;
+    RefPtrWillBeMember<CSSValue> m_endCSSValue;
+};
+
+}
+
+#endif