Disable tests for DevTools roll

Required for https://crrev.com/c/2631120

R=szuend@chromium.org

Bug: 1050549
Change-Id: I0577204362fafbc4598a05b10cc8c8f522ae6792
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2640496
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845204}

third_party/blink/web_tests/TestExpectations

@@ -5953,3 +5953,5 @@ crbug.com/1168373 [ Debug ] http/tests/devtools/layers/layers-3d-view-hit-testin
 
 # DevTools roll
 crbug.com/1050549 http/tests/devtools/network/preview-searchable.js [ Pass Failure ]
+crbug.com/1050549 http/tests/devtools/console/console-correct-suggestions.js [ Pass Failure ]
+crbug.com/1050549 http/tests/devtools/extensions/extensions-timeline-api.js [ Pass Failure ]