Move Animatable* hierarchy into new folder.

Source/core/animation/AnimatableLengthBox.cpp

Index: Source/core/animation/AnimatableLengthBox.cpp
diff --git a/Source/core/animation/AnimatableLengthBox.cpp b/Source/core/animation/AnimatableLengthBox.cpp
deleted file mode 100644
index 25896210c9ed255641b8e7541e7bea4207cba63a..0000000000000000000000000000000000000000
--- a/Source/core/animation/AnimatableLengthBox.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2013 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER OR 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 "core/animation/AnimatableLengthBox.h"
-
-namespace WebCore {
-
-PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableLengthBox::interpolateTo(const AnimatableValue* value, double fraction) const
-{
-    const AnimatableLengthBox* lengthBox = toAnimatableLengthBox(value);
-    return AnimatableLengthBox::create(
-        AnimatableValue::interpolate(this->left(), lengthBox->left(), fraction),
-        AnimatableValue::interpolate(this->right(), lengthBox->right(), fraction),
-        AnimatableValue::interpolate(this->top(), lengthBox->top(), fraction),
-        AnimatableValue::interpolate(this->bottom(), lengthBox->bottom(), fraction));
-}
-
-bool AnimatableLengthBox::equalTo(const AnimatableValue* value) const
-{
-    const AnimatableLengthBox* lengthBox = toAnimatableLengthBox(value);
-    return left()->equals(lengthBox->left())
-        && right()->equals(lengthBox->right())
-        && top()->equals(lengthBox->top())
-        && bottom()->equals(lengthBox->bottom());
-}
-
-void AnimatableLengthBox::trace(Visitor* visitor)
-{
-    visitor->trace(m_left);
-    visitor->trace(m_right);
-    visitor->trace(m_top);
-    visitor->trace(m_bottom);
-    AnimatableValue::trace(visitor);
-}
-
-}