Add test expectation for virtual/deferred/inspector/tracing/worker-events.html.
Add test expectation for virtual/deferred/inspector/tracing/worker-events.html.

BUG=471092
TBR=pkasting@chromium.org

Review URL: https://codereview.chromium.org/1040593002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@192653 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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