Transitions: Downgrade transition to animation after it has finished

Source/core/animation/AnimationPlayer.cpp

Index: Source/core/animation/AnimationPlayer.cpp
diff --git a/Source/core/animation/AnimationPlayer.cpp b/Source/core/animation/AnimationPlayer.cpp
index 50a57d2ce6acb01982f135bdb527fd352c6751b9..b920dbe3b76415182a3084f25d1cef5f20e600dc 100644
--- a/Source/core/animation/AnimationPlayer.cpp
+++ b/Source/core/animation/AnimationPlayer.cpp
@@ -803,12 +803,6 @@ void AnimationPlayer::cancel()
     m_startTime = nullValue();
     m_currentTimePending = false;
 
-    // after cancelation, transitions must be downgraded or they'll fail
-    // to be considered when retriggering themselves. This can happen if
-    // the transition is captured through getAnimationPlayers then played.
-    if (m_content && m_content->isAnimation())
-        toAnimation(m_content.get())->downgradeToNormalAnimation();
-
     InspectorInstrumentation::didCancelAnimationPlayer(timeline()->document(), this);
 }