Avoid trigger compositing update on media player finalization.

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
diff --git a/Source/core/html/HTMLMediaElement.cpp b/Source/core/html/HTMLMediaElement.cpp
index 3ffd916606a5ea6f02b9c26b6234b3f2abb35e44..7e37c49b948678a82aae9cfb722e751b8f3106b8 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -3947,15 +3947,18 @@ void HTMLMediaElement::mediaPlayerSetWebLayer(blink::WebLayer* webLayer)
         return;
 
     // If either of the layers is null we need to enable or disable compositing. This is done by triggering a style recalc.
-    if (!m_webLayer || !webLayer)
+    if ((!m_webLayer || !webLayer)
+#if ENABLE(OILPAN)
+        && !isFinalizing()
+#endif
+        )
         setNeedsCompositingUpdate();
 
     if (m_webLayer)
         GraphicsLayer::unregisterContentsLayer(m_webLayer);
     m_webLayer = webLayer;
-    if (m_webLayer) {
+    if (m_webLayer)
         GraphicsLayer::registerContentsLayer(m_webLayer);
-    }
 }
 
 void HTMLMediaElement::mediaPlayerMediaSourceOpened(blink::WebMediaSource* webMediaSource)