8005997: [macosx] Printer Dialog opens an additional title bar

Reviewed-by: anthony, art
diff --git a/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java b/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java
index c20f0a9..54f15f6 100644
--- a/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java
+++ b/jdk/src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java
@@ -923,6 +923,10 @@
             return false;
         }
 
+        if (blocker instanceof CPrinterDialogPeer) {
+            return true;
+        }
+
         CPlatformWindow pWindow = (CPlatformWindow)blocker.getPlatformWindow();
 
         pWindow.orderAboveSiblings();