GitLab

Manifest v1 had an "inIncognitoTab" on the chrome.extension API object
property instead of the new "inIncognitoContext". Remove support for
this fully (and update a stale reference).

Bug: 816677

Change-Id: I4cefe0359ff3c4cae0df06b467c5628f6cd27fc6
Reviewed-on: https://chromium-review.googlesource.com/973542Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#545627}