Bug 1504082 [wpt PR 13845] - Add extra utilities to content::media_constraints, a=testonly

Automatic update from web-platform-testsAdd extra utilities to content::media_constraints

This CL adds:
* NumericRangeSet::Contains().
* NumericRangeSet::EmptySet().
* ResolutionSet::FromNativeResolution().

These utilities are in preparation for supporting the resizeMode
constrainable property in getUserMedia() and applyConstraints().

Drive-by: minor fixes/improvements.

Bug: 854980
Change-Id: I858f406308aa9bba40521d5e740219b72e2c8a48
Reviewed-on: https://chromium-review.googlesource.com/c/1308133
Reviewed-by: Henrik Boström <hbos@chromium.org>
Commit-Queue: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604574}

--

wpt-commits: 5b699ddb3200ce3abc8a2a5059c52235076bde4f
wpt-pr: 13845

testing/web-platform/tests/mediacapture-streams/MediaStreamTrack-getSettings.https.html

@@ -170,7 +170,7 @@
     assert_equals(typeof(settings.width), "number",
                   "width should exist and it should be a number.");
     assert_true(Number.isInteger(settings.width), "width should be an integer.");
-    assert_greater_than_equal(settings.width, 0);
+    assert_greater_than_equal(settings.width, 0);;
   }, 'width is reported by getSettings() for getUserMedia() video tracks');
 
   promise_test(async t => {