Reland of [ios] Removed back-forward navigation API from CRWWebController.

Reland of [ios] Removed back-forward navigation API from CRWWebController. (patchset #1 id:1 of https://codereview.chromium.org/2509493003/ )

Reason for revert:
Downstream tests were fixed. Relanding without changes.

Original issue's description:
> Revert of [ios] Removed back-forward navigation API from CRWWebController. (patchset #2 id:20001 of https://codereview.chromium.org/2499593003/ )
>
> Reason for revert:
> Breaks upstream unit test.
>
> Original issue's description:
> > [ios] Removed back-forward navigation API from CRWWebController.
> >
> > NavigationManager API should be used for navigation instead.
> >
> > BUG=661316
> >
> > Committed: https://crrev.com/f00c143bc322f36f5ff919620fd57b2e021a3262
> > Cr-Commit-Position: refs/heads/master@{#432369}
>
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=661316
>
> Committed: https://crrev.com/862c1088fa95986676931fcf7231fcbd6d182fe4
> Cr-Commit-Position: refs/heads/master@{#432372}

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=661316
Committed: https://crrev.com/3a222d75c572b2df8a4e6c4bc0d0e5b851147ff2
Cr-Commit-Position: refs/heads/master@{#432483}

[Eugene But (OOO till 7-30), 2016-11-16 14:52:04]

The CQ bit was checked by eugenebut@chromium.org

[Eugene But (OOO till 7-30), 2016-11-16 14:52:04]

Created Reland of [ios] Removed back-forward navigation API from
CRWWebController.

[commit-bot: I haz the power, 2016-11-16 14:52:29]

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, 2016-11-16 14:53:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-16 14:56:29]

Description was changed from

==========
Reland of [ios] Removed back-forward navigation API from CRWWebController.
(patchset #1 id:1 of https://codereview.chromium.org/2509493003/ )

Reason for revert:
Downstream tests were fixed. Relanding without changes.

Original issue's description:
> Revert of [ios] Removed back-forward navigation API from CRWWebController.
(patchset #2 id:20001 of https://codereview.chromium.org/2499593003/ )
> 
> Reason for revert:
> Breaks upstream unit test.
> 
> Original issue's description:
> > [ios] Removed back-forward navigation API from CRWWebController.
> >
> > NavigationManager API should be used for navigation instead.
> >
> > BUG=661316
> >
> > Committed: https://crrev.com/f00c143bc322f36f5ff919620fd57b2e021a3262
> > Cr-Commit-Position: refs/heads/master@{#432369}
> 
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=661316
> 
> Committed: https://crrev.com/862c1088fa95986676931fcf7231fcbd6d182fe4
> Cr-Commit-Position: refs/heads/master@{#432372}

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=661316
==========

to

==========
Reland of [ios] Removed back-forward navigation API from CRWWebController.
(patchset #1 id:1 of https://codereview.chromium.org/2509493003/ )

Reason for revert:
Downstream tests were fixed. Relanding without changes.

Original issue's description:
> Revert of [ios] Removed back-forward navigation API from CRWWebController.
(patchset #2 id:20001 of https://codereview.chromium.org/2499593003/ )
>
> Reason for revert:
> Breaks upstream unit test.
>
> Original issue's description:
> > [ios] Removed back-forward navigation API from CRWWebController.
> >
> > NavigationManager API should be used for navigation instead.
> >
> > BUG=661316
> >
> > Committed: https://crrev.com/f00c143bc322f36f5ff919620fd57b2e021a3262
> > Cr-Commit-Position: refs/heads/master@{#432369}
>
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=661316
>
> Committed: https://crrev.com/862c1088fa95986676931fcf7231fcbd6d182fe4
> Cr-Commit-Position: refs/heads/master@{#432372}

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=661316

Committed: https://crrev.com/3a222d75c572b2df8a4e6c4bc0d0e5b851147ff2
Cr-Commit-Position: refs/heads/master@{#432483}
==========

[commit-bot: I haz the power, 2016-11-16 14:56:29]

Patchset 1 (id:??) landed as
https://crrev.com/3a222d75c572b2df8a4e6c4bc0d0e5b851147ff2
Cr-Commit-Position: refs/heads/master@{#432483}