Ensure that navigation will proceed when no NavigationHandle is found

Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
Committed: https://crrev.com/13dbcd1e7b46a500c1afde8256949aeecdcb18be
Cr-Commit-Position: refs/heads/master@{#430650}

[clamy, 2016-11-07 12:28:46]

The CQ bit was checked by clamy@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-07 12:28:59]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[clamy, 2016-11-07 12:29:05]

Description was changed from

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
==========

to

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
==========

[clamy, 2016-11-07 12:29:05]

clamy@chromium.org changed reviewers:
+ nasko@chromium.org

[clamy, 2016-11-07 12:30:14]

@nasko: PTAL

My goal is to land this and merge to M55 to fix the bug, then land
https://codereview.chromium.org/2475693002/ which would include a revert of this
change (I think https://codereview.chromium.org/2475693002/ is too complex to
cherrypick to M55).

[commit-bot: I haz the power, 2016-11-07 13:18:05]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-07 13:18:05]

Dry run: This issue passed the CQ dry run.

[nasko, 2016-11-08 16:47:16]

LGTM

[nasko, 2016-11-08 16:47:36]

The CQ bit was checked by nasko@chromium.org

[commit-bot: I haz the power, 2016-11-08 16:48:02]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-08 18:06:39]

Description was changed from

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
==========

to

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
==========

[commit-bot: I haz the power, 2016-11-08 18:06:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-08 18:38:27]

Description was changed from

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530
==========

to

==========
Ensure that navigation will proceed when no NavigationHandle is found

This is a fix for an issue where the NavigationHandle is destroyed by
the commit of a same-page navigation, which will cancel an ongoing
navigation. This patch allows the navigation to go through, and is meant
to be a temporary fix until https://codereview.chromium.org/2475693002/
lands.

BUG=658530

Committed: https://crrev.com/13dbcd1e7b46a500c1afde8256949aeecdcb18be
Cr-Commit-Position: refs/heads/master@{#430650}
==========

[commit-bot: I haz the power, 2016-11-08 18:38:27]

Patchset 1 (id:??) landed as
https://crrev.com/13dbcd1e7b46a500c1afde8256949aeecdcb18be
Cr-Commit-Position: refs/heads/master@{#430650}