Bug 261164 [CommonNavigator] Add dynamic tracing for DnD
The options were put in, but the tracing was never actually hooked up.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonDropAdapter.java
}
		for (int i = 0; i < event.dataTypes.length; i++) {
			if (FileTransfer.getInstance().isSupportedType(event.dataTypes[i])) {
				event.currentDataType = event.dataTypes[i];
				event.detail = DND.DROP_COPY; 
				return;
			}
		}
		for (int i = 0; i < event.dataTypes.length; i++) {
			if (PluginTransfer.getInstance()
					.isSupportedType(event.dataTypes[i])) {
				event.currentDataType = event.dataTypes[i]; 
				return;
			}
		}
		event.detail = DND.DROP_NONE; 
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.dnd.DropTargetAdapter#dragLeave(org.eclipse.swt.dnd.DropTargetEvent)
	 */
	public void dragLeave(DropTargetEvent event) {
		super.dragLeave(event);
		if (LocalSelectionTransfer.getTransfer().isSupportedType(
				event.currentDataType)) {
			event.data = NavigatorPluginDropAction
					.createTransferData(contentService);
		}
	}