@Override
	protected void cancelCallback() {
		// note: this is called from the cancel button and when the dialog close button is pressed
		Swing.runLater(verifyCancel);
	}
Adds the panel that contains the activity panel (e.g., the eating bits animation) to the
dialog. This should only be called if the dialog has no need to display progress.
Ghidra/Framework/Docking/src/main/java/ghidra/util/task/TaskDialog.java