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diff --git a/layout/style/test/test_mq_hover_and_pointer.html b/layout/style/test/test_mq_hover_and_pointer.html
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+++ b/layout/style/test/test_mq_hover_and_pointer.html
@@ -0,0 +1,127 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1035774
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 1035774</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1035774">Mozilla Bug 1035774</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+<script>
+
+const NO_POINTER = 0x00;
+const COARSE_POINTER = 0x01;
+const FINE_POINTER = 0x02;
+const HOVER_CAPABLE_POINTER = 0x04;
+
+var isAndroid = navigator.appVersion.includes("Android");
+
+add_task(async () => {
+ await SpecialPowers.pushPrefEnv({
+ set: [ ['privacy.resistFingerprinting', true] ]
+ });
+
+ // When resistFingerprinting is enabled, we pretend that the system has a
+ // mouse pointer (or finger on mobile).
+ let invertIfAndroid = function(b) { return isAndroid ? !b : b; };
+
+ ok(!matchMedia("(pointer: none)").matches,
+ "Doesn't match (pointer: none)");
+
+ ok(matchMedia("(pointer)").matches, "Matches (pointer)");
+
+ ok(invertIfAndroid(!matchMedia("(pointer: coarse)").matches),
+ "Doesn't match (pointer: coarse)");
+ ok(invertIfAndroid(matchMedia("(pointer: fine)").matches), "Matches (pointer: fine)");
+
+ ok(invertIfAndroid(!matchMedia("(hover: none)").matches), "Doesn't match (hover: none)");
+ ok(invertIfAndroid(matchMedia("(hover: hover)").matches), "Matches (hover: hover)");
+ ok(invertIfAndroid(matchMedia("(hover)").matches), "Matches (hover)");
+
+ await SpecialPowers.flushPrefEnv();
+});
+
+add_task(async () => {
+ // No pointer.
+ await SpecialPowers.pushPrefEnv({
+ set: [ ['ui.primaryPointerCapabilities', NO_POINTER] ]
+ });
+
+ ok(matchMedia("(pointer: none)").matches, "Matches (pointer: none)");
+ ok(!matchMedia("(pointer: coarse)").matches,
+ "Doesn't match (pointer: coarse)");
+ ok(!matchMedia("(pointer: fine)").matches, "Doesn't match (pointer: fine)");
+ ok(!matchMedia("(pointer)").matches, "Matches (pointer)");
+
+ ok(matchMedia("(hover: none)").matches, "Matches (hover: none)");
+ ok(!matchMedia("(hover: hover)").matches, "Doesn't match (hover: hover)");
+ ok(!matchMedia("(hover)").matches, "Doesn't match (hover)");
+});
+
+add_task(async () => {
+ // Mouse type pointer.
+ await SpecialPowers.pushPrefEnv({
+ set: [ ['ui.primaryPointerCapabilities', FINE_POINTER | HOVER_CAPABLE_POINTER] ]
+ });
+
+ ok(!matchMedia("(pointer: none)").matches,
+ "Doesn't match (pointer: none)");
+ ok(!matchMedia("(pointer: coarse)").matches,
+ "Doesn't match (pointer: coarse)");
+ ok(matchMedia("(pointer: fine)").matches, "Matches (pointer: fine)");
+ ok(matchMedia("(pointer)").matches, "Matches (pointer)");
+
+ ok(!matchMedia("(hover: none)").matches, "Doesn't match (hover: none)");
+ ok(matchMedia("(hover: hover)").matches, "Matches (hover: hover)");
+ ok(matchMedia("(hover)").matches, "Matches (hover)");
+});
+
+add_task(async () => {
+ // Mouse type pointer.
+ await SpecialPowers.pushPrefEnv({
+ set: [ ['ui.primaryPointerCapabilities',
+ FINE_POINTER |
+ HOVER_CAPABLE_POINTER] ]
+ });
+
+ ok(!matchMedia("(pointer: none)").matches,
+ "Doesn't match (pointer: none)");
+ ok(!matchMedia("(pointer: coarse)").matches,
+ "Doesn't match (pointer: coarse)");
+ ok(matchMedia("(pointer: fine)").matches, "Matches (pointer: fine)");
+ ok(matchMedia("(pointer)").matches, "Matches (pointer)");
+
+ ok(!matchMedia("(hover: none)").matches, "Doesn't match (hover: none)");
+ ok(matchMedia("(hover: hover)").matches, "Matches (hover: hover)");
+ ok(matchMedia("(hover)").matches, "Matches (hover)");
+});
+
+add_task(async () => {
+ // Touch screen.
+ await SpecialPowers.pushPrefEnv({
+ set: [ ['ui.primaryPointerCapabilities', COARSE_POINTER] ]
+ });
+
+ ok(!matchMedia("(pointer: none)").matches, "Doesn't match (pointer: none)");
+ ok(matchMedia("(pointer: coarse)").matches, "Matches (pointer: coarse)");
+ ok(!matchMedia("(pointer: fine)").matches, "Doesn't match (pointer: fine)");
+ ok(matchMedia("(pointer)").matches, "Matches (pointer)");
+
+ ok(matchMedia("(hover: none)").matches, "Match (hover: none)");
+ ok(!matchMedia("(hover: hover)").matches, "Doesn't match (hover: hover)");
+ ok(!matchMedia("(hover)").matches, "Doesn't match (hover)");
+});
+
+</script>
+</body>
+</html>