DevTools: follow up to r165291, fix WorkerDevToolsSanityTest.InspectSharedWorker TBR=alph
DevTools: follow up to r165291, fix WorkerDevToolsSanityTest.InspectSharedWorker
TBR=alph

Review URL: https://codereview.chromium.org/141663002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@165302 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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