Dismissing search and other overlays when the menu button is pressed. (Bug 12524591)

    @Override

    public boolean onPrepareOptionsMenu(Menu menu) {

        super.onPrepareOptionsMenu(menu);

        // Close any open folders

        closeFolder();

        // Stop resizing any widgets

        mWorkspace.exitWidgetResizeMode();

        if (!mWorkspace.isInOverviewMode()) {

            // Show the overview mode

            showOverviewMode(true);

        } else {

            showWorkspace(true);

        }

        return false;

    }