Update OffscreenCanvas-placeholder-createImageBitmap.html expectation.

Flakes on all platforms now, so should be marked everywhere.

BUG=1010472,1019079
TBR=waffles

Change-Id: Ibea535220eb3093e3a99f985a1077af5eb0cb258
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1898202Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712231}

third_party/blink/web_tests/TestExpectations

@@ -5687,7 +5687,7 @@ crbug.com/1013391 http/tests/devtools/a11y-axe-core/settings/shortcuts-a11y-test
 crbug.com/1013523 [ Release ] virtual/cross-origin-embedder-policy/external/wpt/html/cross-origin-embedder-policy/require-corp.https.html [ Failure Pass ]
 crbug.com/1013523 [ Release Linux Mac ] external/wpt/html/cross-origin-embedder-policy/require-corp.https.html [ Failure Pass ]
 crbug.com/1010472 [ Linux Mac Debug ] virtual/disable-deferred-rendering/fast/canvas/color-space/canvas-drawImage-offscreenCanvas.html [ Timeout Pass ]
-crbug.com/1010472 [ Mac Debug ] virtual/disable-deferred-rendering/fast/canvas/OffscreenCanvas-placeholder-createImageBitmap.html [ Failure Pass ]
+crbug.com/1010472 virtual/disable-deferred-rendering/fast/canvas/OffscreenCanvas-placeholder-createImageBitmap.html [ Failure Pass ]
 crbug.com/1013779 virtual/scalefactor200/fast/hidpi/static/calendar-picker-appearance.html [ Failure Pass ]
 crbug.com/1013779 [ Mac ] virtual/scalefactor200/fast/hidpi/static/data-suggestion-picker-appearance.html [ Failure Pass ]
 crbug.com/1013779 virtual/scalefactor200/fast/hidpi/static/pointerevents/pointerevent_touch-adjustment_click_target.html [ Failure Pass ]