Web animations: Supply CSS transition easing

Source/core/animation/Animation.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 109 matching lines @@
         return;
 
     if (player() && !previouslyInEffect) {
         ensureAnimationStack(m_target.get()).add(this);
         m_activeInAnimationStack = true;
     }
 
     double iteration = currentIteration();
     ASSERT(iteration >= 0);
     // FIXME: Handle iteration values which overflow int.
-    m_activeInterpolations = m_effect->sample(static_cast<int>(iteration), timeFraction());
+    m_activeInterpolations = m_effect->sample(static_cast<int>(iteration), timeFraction(), duration());
     if (player())
         m_target->setNeedsAnimationStyleRecalc();
 }
 
 void Animation::clearEffects()
 {
     ASSERT(player());
     ASSERT(m_activeInAnimationStack);
     ensureAnimationStack(m_target.get()).remove(this);
 
@@ skipping 105 matching lines @@
 void Animation::pauseAnimationForTestingOnCompositor(double pauseTime)
 {
     ASSERT(hasActiveAnimationsOnCompositor());
     if (!m_target || !m_target->renderer())
         return;
     for (size_t i = 0; i < m_compositorAnimationIds.size(); ++i)
         CompositorAnimations::instance()->pauseAnimationForTestingOnCompositor(*m_target.get(), m_compositorAnimationIds[i], pauseTime);
 }
 
 } // namespace WebCore