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diff --git a/Source/WebKit/chromium/tests/CCAnimationTestCommon.cpp b/Source/WebKit/chromium/tests/CCAnimationTestCommon.cpp
new file mode 100644
index 000000000..c9240e31f
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+++ b/Source/WebKit/chromium/tests/CCAnimationTestCommon.cpp
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+/*
+ * Copyright (C) 2012 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "CCAnimationTestCommon.h"
+
+#include "GraphicsLayer.h"
+#include "LayerChromium.h"
+#include "cc/CCLayerAnimationController.h"
+
+using namespace WebCore;
+
+namespace {
+
+template <class Target>
+void addOpacityTransition(Target& target, double duration, float startOpacity, float endOpacity)
+{
+    WebCore::KeyframeValueList values(AnimatedPropertyOpacity);
+    if (duration > 0)
+        values.insert(new FloatAnimationValue(0, startOpacity));
+    values.insert(new FloatAnimationValue(duration, endOpacity));
+
+    RefPtr<Animation> animation = Animation::create();
+    animation->setDuration(duration);
+
+    IntSize boxSize;
+
+    target.addAnimation(values, boxSize, animation.get(), 0, 0, 0);
+}
+
+} // namespace
+
+namespace WebKitTests {
+
+FakeFloatAnimationCurve::FakeFloatAnimationCurve()
+{
+}
+
+FakeFloatAnimationCurve::~FakeFloatAnimationCurve()
+{
+}
+
+PassOwnPtr<WebCore::CCAnimationCurve> FakeFloatAnimationCurve::clone() const
+{
+    return adoptPtr(new FakeFloatAnimationCurve);
+}
+
+FakeTransformTransition::FakeTransformTransition(double duration)
+    : m_duration(duration)
+{
+}
+
+FakeTransformTransition::~FakeTransformTransition()
+{
+}
+
+WebCore::TransformationMatrix FakeTransformTransition::getValue(double time, const WebCore::IntSize& size) const
+{
+    return WebCore::TransformationMatrix();
+}
+
+PassOwnPtr<WebCore::CCAnimationCurve> FakeTransformTransition::clone() const
+{
+    return adoptPtr(new FakeTransformTransition(*this));
+}
+
+
+FakeFloatTransition::FakeFloatTransition(double duration, float from, float to)
+    : m_duration(duration)
+    , m_from(from)
+    , m_to(to)
+{
+}
+
+FakeFloatTransition::~FakeFloatTransition()
+{
+}
+
+float FakeFloatTransition::getValue(double time) const
+{
+    time /= m_duration;
+    if (time >= 1)
+        time = 1;
+    return (1 - time) * m_from + time * m_to;
+}
+
+FakeLayerAnimationControllerImplClient::FakeLayerAnimationControllerImplClient()
+    : m_opacity(0)
+{
+}
+
+FakeLayerAnimationControllerImplClient::~FakeLayerAnimationControllerImplClient()
+{
+}
+
+PassOwnPtr<WebCore::CCAnimationCurve> FakeFloatTransition::clone() const
+{
+    return adoptPtr(new FakeFloatTransition(*this));
+}
+
+void addOpacityTransitionToController(WebCore::CCLayerAnimationController& controller, double duration, float startOpacity, float endOpacity)
+{
+    addOpacityTransition(controller, duration, startOpacity, endOpacity);
+}
+
+void addOpacityTransitionToLayer(WebCore::LayerChromium& layer, double duration, float startOpacity, float endOpacity)
+{
+    addOpacityTransition(layer, duration, startOpacity, endOpacity);
+}
+
+} // namespace WebKitTests