Construct KeyframeEffectReadOnly objects

third_party/WebKit/Source/core/animation/ElementAnimations.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 23 matching lines @@
 
 ElementAnimations::ElementAnimations() : m_animationStyleChange(false) {}
 
 ElementAnimations::~ElementAnimations() {}
 
 void ElementAnimations::updateAnimationFlags(ComputedStyle& style) {
   for (const auto& entry : m_animations) {
     const Animation& animation = *entry.key;
     DCHECK(animation.effect());
     // FIXME: Needs to consider AnimationGroup once added.
-    DCHECK(animation.effect()->isKeyframeEffect());
-    const KeyframeEffect& effect = *toKeyframeEffect(animation.effect());
+    DCHECK(animation.effect()->isKeyframeEffectReadOnly());
+    const KeyframeEffectReadOnly& effect =
+        *toKeyframeEffectReadOnly(animation.effect());
     if (effect.isCurrent()) {
       if (effect.affects(PropertyHandle(CSSPropertyOpacity)))
         style.setHasCurrentOpacityAnimation(true);
       if (effect.affects(PropertyHandle(CSSPropertyTransform)) ||
           effect.affects(PropertyHandle(CSSPropertyRotate)) ||
           effect.affects(PropertyHandle(CSSPropertyScale)) ||
           effect.affects(PropertyHandle(CSSPropertyTranslate)))
         style.setHasCurrentTransformAnimation(true);
       if (effect.affects(PropertyHandle(CSSPropertyFilter)))
         style.setHasCurrentFilterAnimation(true);
@@ skipping 61 matching lines @@
   // as Font::operator== will compare versions, hence ComputedStyle::operator==
   // will return false. We avoid using baseComputedStyle (the check for
   // isFallbackValid()) in that case to avoid triggering the ComputedStyle
   // comparison ASSERT in updateBaseComputedStyle.
   return m_animationStyleChange &&
          (!m_baseComputedStyle ||
           m_baseComputedStyle->font().isFallbackValid());
 }
 
 }  // namespace blink