Rename KeyframeEffect::isAnimation to KeyframeEffect::isKeyframeEffect

Source/core/animation/KeyframeEffect.h

Index: Source/core/animation/KeyframeEffect.h
diff --git a/Source/core/animation/KeyframeEffect.h b/Source/core/animation/KeyframeEffect.h
index ec93db5f13544126c07b18c54826df5e32d20147..67db902acf5a1f0377d034e2cfb5a6e5c55577ab 100644
--- a/Source/core/animation/KeyframeEffect.h
+++ b/Source/core/animation/KeyframeEffect.h
@@ -61,7 +61,7 @@ public:
 
     ~KeyframeEffect() override;
 
-    bool isAnimation() const override { return true; }
+    bool isKeyframeEffect() const override { return true; }
 
     bool affects(PropertyHandle) const;
     const EffectModel* model() const { return m_model.get(); }
@@ -118,7 +118,7 @@ private:
     friend class AnimationAnimationV8Test;
 };
 
-DEFINE_TYPE_CASTS(KeyframeEffect, AnimationEffect, animationNode, animationNode->isAnimation(), animationNode.isAnimation());
+DEFINE_TYPE_CASTS(KeyframeEffect, AnimationEffect, animationNode, animationNode->isKeyframeEffect(), animationNode.isKeyframeEffect());
 
 } // namespace blink