Bug 1624052 [wpt PR 22371] - wpt: change height of touch target, a=testonly

Bug 1624052 [wpt PR 22371] - wpt: change height of touch target, a=testonly

Automatic update from web-platform-tests
wpt: change height of touch target

weblayer shell has a slightly smaller height than chrome. The size is
such that this test ends up failing because the generated touch event
is outside the visible area. This patch shrinks the height slightly
so that it passes on weblayer. I don't believe shrinking the height of
this target impacts the overall test..

BUG=1049426
TEST=test only change

Change-Id: Ie0f2fadc4ec613d92c074b60eb87c97d70f78094
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2112984
Reviewed-by: Lan Wei <lanwei@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#752214}

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wpt-commits: b5634429feb8560f9edec1b4620d793c9e35442e
wpt-pr: 22371