Initialize nativeZoom from Shell via OS call

Shell can be created on secondary monitor but inheriting the zoom of
parent (which could be on primary monitor) means the DPI change will not
be triggered.

Author: ShahzaibIbrahim

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Shell.java

@@ -300,18 +300,9 @@ public Shell (Display display, int style) {
 	if (handle != 0 && !embedded) {
 		state |= FOREIGN_HANDLE;
 	}
-
-	int shellNativeZoom;
-	if (parent != null) {
-		shellNativeZoom = parent.nativeZoom;
-	} else {
-		int mappedDPIZoom = getMonitor().getZoom();
-		shellNativeZoom = mappedDPIZoom;
-	}
-	this.nativeZoom = shellNativeZoom;
-
 	reskinWidget();
 	createWidget ();
+	this.nativeZoom = DPIUtil.mapDPIToZoom(OS.GetDpiForWindow(this.handle));
 }
 
 /**