REGRESSION (268484@main): Dynamic Content Scaling is disabled

https://bugs.webkit.org/show_bug.cgi?id=264463
rdar://117906435

Reviewed by Brady Eidson.

* Source/WebKit/UIProcess/RemoteLayerTree/cocoa/RemoteLayerTreeLayers.mm:
(-[WKCompositingLayer _setWKContents:withDisplayList:replayForTesting:]):
I accidentally copy-pasteo'd WKDynamicContentScalingContentsKey into both
keys instead of WKDynamicContentScalingPortsKey in the second one.

Canonical link: https://commits.webkit.org/270420@main

Source/WebKit/UIProcess/RemoteLayerTree/cocoa/RemoteLayerTreeLayers.mm

@@ -74,7 +74,7 @@ - (void)_setWKContents:(id)contents withDisplayList:(WebKit::DynamicContentScali
     }
 
     [self setValue:bridge_cast(data.get()) forKeyPath:WKDynamicContentScalingContentsKey];
-    [self setValue:ports.get() forKeyPath:WKDynamicContentScalingContentsKey];
+    [self setValue:ports.get() forKeyPath:WKDynamicContentScalingPortsKey];
     [self setNeedsDisplay];
 }