[ios] Unified CRWSessionController navigation logic.

[ios] Unified CRWSessionController navigation logic.

Changed -[CRWSessionController goToEntry:] logic to do the same things
as goBack/goForward/goDelta: and made goDelta: call goToEntry:.

goToEntry: is used when user navigates to session entry by doing a long
press on back/forward button and picking an item from the dropdown, so
it should work exacly the same as if user directly tapped back or
forward.

This refactoring will also allow to unify CRWWebController's
goToItemAtIndex and goDelta.

BUG=663072
Committed: https://crrev.com/d0b3868c2fee1da5c50b7b4d2d5c956835237b15
Cr-Commit-Position: refs/heads/master@{#430756}

[Eugene But (OOO till 7-30), 2016-11-07 22:54:25]

eugenebut@chromium.org changed reviewers:
+ kkhorimoto@chromium.org

[Eugene But (OOO till 7-30), 2016-11-07 22:57:05]

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

[commit-bot: I haz the power, 2016-11-07 22:57:41]

Dry run: 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, 2016-11-07 23:08:41]

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

[commit-bot: I haz the power, 2016-11-07 23:08:41]

Dry run: This issue passed the CQ dry run.

[kkhorimoto, 2016-11-07 23:14:38]

lgtm

[Eugene But (OOO till 7-30), 2016-11-08 23:14:01]

The CQ bit was checked by eugenebut@chromium.org

[Eugene But (OOO till 7-30), 2016-11-08 23:14:01]

The patchset sent to the CQ was uploaded after l-g-t-m from
kkhorimoto@chromium.org
Link to the patchset: https://codereview.chromium.org/2485753002/#ps20001
(title: "Rebased to origin/master")

[commit-bot: I haz the power, 2016-11-08 23:14:38]

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 23:30:16]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-08 23:38:28]

Description was changed from

==========
[ios] Unified CRWSessionController navigation logic.

Changed -[CRWSessionController goToEntry:] logic to do the same things
as goBack/goForward/goDelta: and made goDelta: call goToEntry:.

goToEntry: is used when user navigates to session entry by doing a long
press on back/forward button and picking an item from the dropdown, so
it should work exacly the same as if user directly tapped back or
forward.

This refactoring will also allow to unify CRWWebController's
goToItemAtIndex and goDelta.

BUG=663072
==========

to

==========
[ios] Unified CRWSessionController navigation logic.

Changed -[CRWSessionController goToEntry:] logic to do the same things
as goBack/goForward/goDelta: and made goDelta: call goToEntry:.

goToEntry: is used when user navigates to session entry by doing a long
press on back/forward button and picking an item from the dropdown, so
it should work exacly the same as if user directly tapped back or
forward.

This refactoring will also allow to unify CRWWebController's
goToItemAtIndex and goDelta.

BUG=663072

Committed: https://crrev.com/d0b3868c2fee1da5c50b7b4d2d5c956835237b15
Cr-Commit-Position: refs/heads/master@{#430756}
==========

[commit-bot: I haz the power, 2016-11-08 23:38:28]

Patchset 2 (id:??) landed as
https://crrev.com/d0b3868c2fee1da5c50b7b4d2d5c956835237b15
Cr-Commit-Position: refs/heads/master@{#430756}