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-rw-r--r--browser/components/syncedtabs/EventEmitter.jsm45
1 files changed, 0 insertions, 45 deletions
diff --git a/browser/components/syncedtabs/EventEmitter.jsm b/browser/components/syncedtabs/EventEmitter.jsm
deleted file mode 100644
index ec3225f0f..000000000
--- a/browser/components/syncedtabs/EventEmitter.jsm
+++ /dev/null
@@ -1,45 +0,0 @@
-/* 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 http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-this.EXPORTED_SYMBOLS = [
- "EventEmitter"
-];
-
-// Simple event emitter abstraction for storage objects to use.
-function EventEmitter () {
- this._events = new Map();
-}
-
-EventEmitter.prototype = {
- on(event, listener) {
- if (this._events.has(event)) {
- this._events.get(event).add(listener);
- } else {
- this._events.set(event, new Set([listener]));
- }
- },
- off(event, listener) {
- if (!this._events.has(event)) {
- return;
- }
- this._events.get(event).delete(listener);
- },
- emit(event, ...args) {
- if (!this._events.has(event)) {
- return;
- }
- for (let listener of this._events.get(event).values()) {
- try {
- listener.apply(this, args);
- } catch (e) {
- Cu.reportError(e);
- }
- }
- },
-};
-