Triage test for ::file-chooser-button.

Bug: 1086855
Change-Id: I47f4d3891172721c3c12e3985172be9156592f08
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2218091
Auto-Submit: Rune Lillesveen <futhark@chromium.org>
Reviewed-by: Stephen Chenney <schenney@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772322}

third_party/blink/web_tests/TestExpectations

@@ -2644,10 +2644,9 @@ crbug.com/1078474 external/wpt/css/css-pseudo/cascade-highlight-001.html [ Failu
 crbug.com/1078474 external/wpt/css/css-pseudo/cascade-highlight-002.html [ Failure ]
 crbug.com/1024156 external/wpt/css/css-pseudo/cascade-highlight-004.html [ Failure ]
 
+crbug.com/1086855 external/wpt/css/css-pseudo/file-chooser-button-001.tentative.html [ Failure ]
+
 # ====== New tests from wpt-importer added here ======
-crbug.com/626703 [ Linux ] external/wpt/css/css-pseudo/file-chooser-button-001.tentative.html [ Failure ]
-crbug.com/626703 [ Mac ] external/wpt/css/css-pseudo/file-chooser-button-001.tentative.html [ Failure ]
-crbug.com/626703 [ Win ] external/wpt/css/css-pseudo/file-chooser-button-001.tentative.html [ Failure ]
 crbug.com/626703 [ Mac10.14 ] external/wpt/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-tokenization-screenx-screeny.html [ Timeout ]
 crbug.com/626703 [ Mac10.15 ] external/wpt/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-tokenization-innerheight-innerwidth.html [ Timeout ]
 crbug.com/626703 [ Linux ] external/wpt/webrtc/RTCDataChannel-close.html [ Timeout ]