Close Views HTML authentication and tab modal confirm dialogs on interstitial WebUI

Close Views HTML authentication and tab modal confirm dialogs on interstitial WebUI

Configure Views HTML authentication and tab modal confirm dialogs to be
closed when interstitial WebUI is displayed (e.g. for SSL warnings prior
to page load).

This is effectively a no-op for these dialogs, but is desirable so that
all web contents modal dialogs have consistently configured behavior;
these dialogs are already closed at load start time which occurs before
interstitial WebUI is displayed.

BUG=240575
R=sky@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=222130

[sky, 2013-09-09 23:37:58]

LGTM

[Mike Wittman, 2013-09-09 23:48:37]

Committed patchset #1 manually as r222130 (presubmit successful).