GitLab

Use kSigninNotificationInfobarUsernameInTitle experimental flag to allow
switching between "Signed in as [username]" and "Signed in to Chrome"
titles in the sign-in notification infobar.

Bug: 1145592
Change-Id: I31a7b98137f1006f826ff18ee3168d9f87b65431
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2526420Reviewed-by: Jérôme Lebel <jlebel@chromium.org>
Commit-Queue: Nohemi Fernandez <fernandex@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825342}