Bug 1763396 - Use the content pref, as the test is loaded in the content area.

Differential Revision: https://phabricator.services.mozilla.com/D143244
2022-04-07 23:52:41 +00:00 · 2022-04-07 23:52:41 +00:00 · 1d7a0d3629
--- a/layout/base/tests/chrome/test_color_scheme_browser.xhtml
+++ b/layout/base/tests/chrome/test_color_scheme_browser.xhtml
@ -1,9 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml"
-      xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-      windowtype="Toolkit:PictureInPicture"
-      chromemargin="0,0,0,0">
+      xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <head>
    <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
    <script src="chrome://mochikit/content/chrome-harness.js"></script>
@ -92,7 +90,7 @@
        for (let dark of [true, false]) {
          await SpecialPowers.pushPrefEnv({
            set: [
-              ["browser.theme.toolbar-theme", 2],
+              ["layout.css.prefers-color-scheme.content-override", 2],
              ["ui.systemUsesDarkTheme", dark ? 1 : 0],
            ]
          });