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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at */
"use strict";
this.EXPORTED_SYMBOLS = ["TransientPrefs"];
var prefVisibility = new Map;
/* Use for preferences that should only be visible when they've been modified.
When reset to their default state, they remain visible until restarting the
application. */
this.TransientPrefs = {
prefShouldBeVisible: function (prefName) {
if (Preferences.isSet(prefName))
prefVisibility.set(prefName, true);
return !!prefVisibility.get(prefName);