sheriff: update mediacapture test failure suppressions

This directory was renamed which broke the old suppressions.

TBR=marinaciocea@chromium.org

Bug: 783800
Change-Id: Id7ea5283357bca9c277f2cd454b9aae1316b3a13
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1757362Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#688543}

third_party/blink/web_tests/TestExpectations

@@ -5294,10 +5294,10 @@ crbug.com/778745 http/tests/inspector-protocol/cachestorage/read-cached-response
 crbug.com/773122 crbug.com/777813 [ Win ] fast/text/font-ascent-mac.html [ Failure Pass ]
 
 # Sheriff failures 2017-11-13
-crbug.com/783800 external/wpt/imagecapture/MediaStreamTrack-applyConstraints.html [ Pass Failure ]
-crbug.com/783800 external/wpt/imagecapture/MediaStreamTrack-applyConstraints-getSettings.html [ Pass Failure ]
-crbug.com/783301 external/wpt/imagecapture/MediaStreamTrack-getSettings.html [ Pass Failure ]
-crbug.com/783301 external/wpt/imagecapture/MediaStreamTrack-getCapabilities.html [ Pass Failure ]
+crbug.com/783800 external/wpt/mediacapture-image/MediaStreamTrack-applyConstraints.html [ Pass Failure ]
+crbug.com/783800 external/wpt/mediacapture-image/MediaStreamTrack-applyConstraints-getSettings.html [ Pass Failure ]
+crbug.com/783301 external/wpt/mediacapture-image/MediaStreamTrack-getSettings.html [ Pass Failure ]
+crbug.com/783301 external/wpt/mediacapture-image/MediaStreamTrack-getCapabilities.html [ Pass Failure ]
 
 # Cookie Store API
 crbug.com/827231 [ Win ] external/wpt/cookie-store/document_cookie.tentative.https.html [ Pass Failure Timeout ]