Build Fix attempt #3 for note: forward declaration of 'WebCore::Settings'

rdar://151332172

Unreviewed build fix.

* Source/WebKit/WebProcess/Model/ModelProcessModelPlayer.cpp:

Canonical link: https://commits.webkit.org/294933@main

Author: JonWBedard

Source/WebKit/WebProcess/Model/ModelProcessModelPlayer.cpp

@@ -40,6 +40,7 @@
 #include <WebCore/ModelPlayerAnimationState.h>
 #include <WebCore/Page.h>
 #include <WebCore/ResourceError.h>
+#include <WebCore/Settings.h>
 #include <WebCore/TransformationMatrix.h>
 
 namespace WebKit {