Delete unused AnimatableValue code

third_party/WebKit/Source/core/animation/animatable/AnimatableColor.cpp

 /*
  * 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
@@ skipping 12 matching lines @@
  * 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 "core/animation/animatable/AnimatableColor.h"
 
-#include "platform/animation/AnimationUtilities.h"
 
 namespace blink {
 
 AnimatableColorImpl::AnimatableColorImpl(float red,
                                          float green,
                                          float blue,
                                          float alpha)
     : m_alpha(clampTo(alpha, 0.0f, 1.0f)),
       m_red(clampTo(red, 0.0f, 1.0f)),
       m_green(clampTo(green, 0.0f, 1.0f)),
       m_blue(clampTo(blue, 0.0f, 1.0f)) {}
 
 AnimatableColorImpl::AnimatableColorImpl(Color color)
     : m_alpha(color.alpha() / 255.0f),
       m_red(color.red() / 255.0f * m_alpha),
       m_green(color.green() / 255.0f * m_alpha),
       m_blue(color.blue() / 255.0f * m_alpha) {}
 
-Color AnimatableColorImpl::toColor() const {
-  if (!m_alpha)
-    return Color::transparent;
-  return Color(m_red / m_alpha, m_green / m_alpha, m_blue / m_alpha, m_alpha);
-}
-
-AnimatableColorImpl AnimatableColorImpl::interpolateTo(
-    const AnimatableColorImpl& to,
-    double fraction) const {
-  return AnimatableColorImpl(
-      blend(m_red, to.m_red, fraction), blend(m_green, to.m_green, fraction),
-      blend(m_blue, to.m_blue, fraction), blend(m_alpha, to.m_alpha, fraction));
-}
-
 bool AnimatableColorImpl::operator==(const AnimatableColorImpl& other) const {
   return m_red == other.m_red && m_green == other.m_green &&
          m_blue == other.m_blue && m_alpha == other.m_alpha;
 }
 
 PassRefPtr<AnimatableColor> AnimatableColor::create(
     const AnimatableColorImpl& color,
     const AnimatableColorImpl& visitedLinkColor) {
   return adoptRef(new AnimatableColor(color, visitedLinkColor));
 }
 
-PassRefPtr<AnimatableValue> AnimatableColor::interpolateTo(
-    const AnimatableValue* value,
-    double fraction) const {
-  const AnimatableColor* color = toAnimatableColor(value);
-  return create(
-      m_color.interpolateTo(color->m_color, fraction),
-      m_visitedLinkColor.interpolateTo(color->m_visitedLinkColor, fraction));
-}
-
 bool AnimatableColor::equalTo(const AnimatableValue* value) const {
   const AnimatableColor* color = toAnimatableColor(value);
   return m_color == color->m_color &&
          m_visitedLinkColor == color->m_visitedLinkColor;
 }
 
 }  // namespace blink