1 files changed, 0 insertions, 53 deletions
diff --git a/addon-sdk/source/lib/sdk/windows/observer.js b/addon-sdk/source/lib/sdk/windows/observer.js
deleted file mode 100644
index 5ba2535f1..000000000
--- a/addon-sdk/source/lib/sdk/windows/observer.js
+++ /dev/null
@@ -1,53 +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";
-
-module.metadata = {
-  "stability": "unstable"
-};
-
-const { EventTarget } = require("../event/target");
-const { emit } = require("../event/core");
-const { WindowTracker, windowIterator } = require("../deprecated/window-utils");
-const { DOMEventAssembler } = require("../deprecated/events/assembler");
-const { Class } = require("../core/heritage");
-const { Cu } = require("chrome");
-
-// Event emitter objects used to register listeners and emit events on them
-// when they occur.
-const Observer = Class({
-  initialize() {
-    // Using `WindowTracker` to track window events.
-    WindowTracker({
-      onTrack: chromeWindow => {
-        emit(this, "open", chromeWindow);
-        this.observe(chromeWindow);
-      },
-      onUntrack: chromeWindow => {
-        emit(this, "close", chromeWindow);
-        this.ignore(chromeWindow);
-      }
-    });
-  },
-  implements: [EventTarget, DOMEventAssembler],
-  /**
-   * Events that are supported and emitted by the module.
-   */
-  supportedEventsTypes: [ "activate", "deactivate" ],
-  /**
-   * Function handles all the supported events on all the windows that are
-   * observed. Method is used to proxy events to the listeners registered on
-   * this event emitter.
-   * @param {Event} event
-   *    Keyboard event being emitted.
-   */
-  handleEvent(event) {
-    // Ignore events from windows in the child process as they can't be top-level
-    if (Cu.isCrossProcessWrapper(event.target))
-      return;
-    emit(this, event.type, event.target, event);
-  }
-});
-
-exports.observer = new Observer();