From d8bbc7858622b6d9c278469aab701ca0b609cddf Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 15 May 2024 05:35:49 +0200
Subject: Merging upstream version 126.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../newtab/content-src/lib/perf-service.js         | 104 ---------------------
 1 file changed, 104 deletions(-)
 delete mode 100644 browser/components/newtab/content-src/lib/perf-service.js

(limited to 'browser/components/newtab/content-src/lib/perf-service.js')

diff --git a/browser/components/newtab/content-src/lib/perf-service.js b/browser/components/newtab/content-src/lib/perf-service.js
deleted file mode 100644
index 6ea99ce877..0000000000
--- a/browser/components/newtab/content-src/lib/perf-service.js
+++ /dev/null
@@ -1,104 +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";
-
-let usablePerfObj = window.performance;
-
-export function _PerfService(options) {
-  // For testing, so that we can use a fake Window.performance object with
-  // known state.
-  if (options && options.performanceObj) {
-    this._perf = options.performanceObj;
-  } else {
-    this._perf = usablePerfObj;
-  }
-}
-
-_PerfService.prototype = {
-  /**
-   * Calls the underlying mark() method on the appropriate Window.performance
-   * object to add a mark with the given name to the appropriate performance
-   * timeline.
-   *
-   * @param  {String} name  the name to give the current mark
-   * @return {void}
-   */
-  mark: function mark(str) {
-    this._perf.mark(str);
-  },
-
-  /**
-   * Calls the underlying getEntriesByName on the appropriate Window.performance
-   * object.
-   *
-   * @param  {String} name
-   * @param  {String} type eg "mark"
-   * @return {Array}       Performance* objects
-   */
-  getEntriesByName: function getEntriesByName(name, type) {
-    return this._perf.getEntriesByName(name, type);
-  },
-
-  /**
-   * The timeOrigin property from the appropriate performance object.
-   * Used to ensure that timestamps from the add-on code and the content code
-   * are comparable.
-   *
-   * @note If this is called from a context without a window
-   * (eg a JSM in chrome), it will return the timeOrigin of the XUL hidden
-   * window, which appears to be the first created window (and thus
-   * timeOrigin) in the browser.  Note also, however, there is also a private
-   * hidden window, presumably for private browsing, which appears to be
-   * created dynamically later.  Exactly how/when that shows up needs to be
-   * investigated.
-   *
-   * @return {Number} A double of milliseconds with a precision of 0.5us.
-   */
-  get timeOrigin() {
-    return this._perf.timeOrigin;
-  },
-
-  /**
-   * Returns the "absolute" version of performance.now(), i.e. one that
-   * should ([bug 1401406](https://bugzilla.mozilla.org/show_bug.cgi?id=1401406)
-   * be comparable across both chrome and content.
-   *
-   * @return {Number}
-   */
-  absNow: function absNow() {
-    return this.timeOrigin + this._perf.now();
-  },
-
-  /**
-   * This returns the absolute startTime from the most recent performance.mark()
-   * with the given name.
-   *
-   * @param  {String} name  the name to lookup the start time for
-   *
-   * @return {Number}       the returned start time, as a DOMHighResTimeStamp
-   *
-   * @throws {Error}        "No Marks with the name ..." if none are available
-   *
-   * @note Always surround calls to this by try/catch.  Otherwise your code
-   * may fail when the `privacy.resistFingerprinting` pref is true.  When
-   * this pref is set, all attempts to get marks will likely fail, which will
-   * cause this method to throw.
-   *
-   * See [bug 1369303](https://bugzilla.mozilla.org/show_bug.cgi?id=1369303)
-   * for more info.
-   */
-  getMostRecentAbsMarkStartByName(name) {
-    let entries = this.getEntriesByName(name, "mark");
-
-    if (!entries.length) {
-      throw new Error(`No marks with the name ${name}`);
-    }
-
-    let mostRecentEntry = entries[entries.length - 1];
-    return this._perf.timeOrigin + mostRecentEntry.startTime;
-  },
-};
-
-export const perfService = new _PerfService();
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