Bug 1616610 [wpt PR 21881] - Split html/.../query-encoding/ tests, a=…

…testonly

Automatic update from web-platform-tests
Split html/.../query-encoding/ tests (#21881)

These tests cover 5 encodings (UTF-8, UTF-16LE/BE, Windows-1251/1252)
and exercise many features (HTML, CSS, SVG, Workers, ...). They're
currently all skipped in Chrome (and other browser CI systems), since
something in that huge matrix fails or times out for everyone.

web-platform-tests/wpt#4934 suggests
splitting these into separate files. As a stopgap, split them out
using the WPT "variant" mechanism and provide expected failure files
for subsets, which should make fixing the tests and/or browsers more
actionable, and let us catch new regressions.

Bug: 930297
Change-Id: I4813281f547216b2b5f377118a58a419f62cfbc7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2063808
Commit-Queue: Philip Jägenstedt <foolipchromium.org>
Reviewed-by: Philip Jägenstedt <foolipchromium.org>
Cr-Commit-Position: refs/heads/master{#743019}

Co-authored-by: Joshua Bell <inexorabletashgmail.com>

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wpt-commits: d40812425800cccad65582ad1132d97303f1f1b9
wpt-pr: 21881

UltraBlame original commit: cc3538c8a2d458466b5528342be6f3249f183259