Auto merge of #13453 - metajack:media-query-list, r=jdm

Implement matchMedia and MediaQueryList

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #13376 (github issue number if applicable).

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- [x] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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Fixes #13376.

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tests/wpt/mozilla/meta/css/matchMedia.html.ini

@@ -0,0 +1,15 @@
+[matchMedia.html]
+  type: testharness
+  expected: OK
+
+  [window.matchMedia exists]
+    expected: FAIL
+
+  [MediaQueryList.matches for "(min-aspect-ratio: 1/1)"]
+    expected: FAIL
+
+  [MediaQueryList.matches for "(width: 200px)"]
+    expected: FAIL
+
+  [Resize iframe from 200x100 to 200x50, then to 100x50]
+    expected: FAIL