Blink gardening: updated test expectations

BUG=355463
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/209783002

git-svn-id: svn://svn.chromium.org/blink/trunk@169829 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/TestExpectations

@@ -958,3 +958,5 @@ crbug.com/354791 [ Mac ] virtual/threaded/transitions/webkit-clip-path-equality.
 
 crbug.com/355459 [ Release ] inspector/elements/edit-dom-actions-shadow.html [ Pass Timeout ]
 
+crbug.com/355463 [ Win Debug ] css3/flexbox/repaint.html [ Pass Failure ]
+