Don't show current RenderWidgetHostView while interstitial is showing.

Don't show current RenderWidgetHostView while interstitial is showing.

Also moves interstitial page tracking from RenderFrameHostManager to
WebContents, since interstitial pages are not frame-specific. This was
necessary for subframes to detect if an interstitial page is showing.

BUG=729105
TEST=See comment 13 of bug for repro steps
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2938313002
Cr-Original-Commit-Position: refs/heads/master@{#480117}
Review-Url: https://codereview.chromium.org/2954503003 .
Cr-Commit-Position: refs/branch-heads/3112@{#442}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/c958784507ff188871ddbe78461876aa8463d3cd

[Charlie Reis, 2017-06-22 15:19:04]

creis@chromium.org changed reviewers:
+ lfg@chromium.org, nick@chromium.org

[Charlie Reis, 2017-06-22 15:19:05]

FYI: Merging to M60.

[Charlie Reis, 2017-06-22 15:28:11]

Description was changed from

==========
Don't show current RenderWidgetHostView while interstitial is showing.

Also moves interstitial page tracking from RenderFrameHostManager to
WebContents, since interstitial pages are not frame-specific. This was
necessary for subframes to detect if an interstitial page is showing.

BUG=729105
TEST=See comment 13 of bug for repro steps
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2938313002
Cr-Commit-Position: refs/heads/master@{#480117}
(cherry picked from commit adca986a53b31b6da4cb22f8e755f6856daea89a)
==========

to

==========
Don't show current RenderWidgetHostView while interstitial is showing.

Also moves interstitial page tracking from RenderFrameHostManager to
WebContents, since interstitial pages are not frame-specific. This was
necessary for subframes to detect if an interstitial page is showing.

BUG=729105
TEST=See comment 13 of bug for repro steps
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2938313002
Cr-Original-Commit-Position: refs/heads/master@{#480117}
Review-Url: https://codereview.chromium.org/2954503003 .
Cr-Commit-Position: refs/branch-heads/3112@{#442}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/c958784507ff188871ddbe784618...
==========

[Charlie Reis, 2017-06-22 15:28:12]

Committed patchset #1 (id:1) manually as
c958784507ff188871ddbe78461876aa8463d3cd.