Store NavigationItem's unique ID in navigation context.

Store NavigationItem's unique ID in navigation context.

This allows to correctly commit non-latest pending navigation in
webView:didCommitNavigation:

BUG=712269
Review-Url: https://codereview.chromium.org/2881933003
Cr-Commit-Position: refs/heads/master@{#471905}
Committed: https://chromium.googlesource.com/chromium/src/+/1f66b4a55804cd494ec380c0a08446656ce512b9

[Eugene But (OOO till 7-30), 2017-05-12 22:43:35]

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

[commit-bot: I haz the power, 2017-05-12 22:45:06]

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, 2017-05-12 23:06:21]

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

[commit-bot: I haz the power, 2017-05-12 23:06:21]

Dry run: This issue passed the CQ dry run.

[Eugene But (OOO till 7-30), 2017-05-13 00:25:11]

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

[kkhorimoto, 2017-05-15 20:39:12]

lgtm

[Eugene But (OOO till 7-30), 2017-05-15 21:03:19]

Thanks!

[Eugene But (OOO till 7-30), 2017-05-15 21:03:23]

The CQ bit was checked by eugenebut@chromium.org

[commit-bot: I haz the power, 2017-05-15 21:04:50]

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, 2017-05-15 21:23:28]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494882203227530, "parent_rev":
"57206f2078e96f216b5af4c478d420ec1e4054fe", "commit_rev":
"1f66b4a55804cd494ec380c0a08446656ce512b9"}

[commit-bot: I haz the power, 2017-05-15 21:23:39]

Description was changed from

==========
Store NavigationItem's unique ID in navigation context.

This allows to correctly commit non-latest pending navigation in
webView:didCommitNavigation:

BUG=712269
==========

to

==========
Store NavigationItem's unique ID in navigation context.

This allows to correctly commit non-latest pending navigation in
webView:didCommitNavigation:

BUG=712269

Review-Url: https://codereview.chromium.org/2881933003
Cr-Commit-Position: refs/heads/master@{#471905}
Committed:
https://chromium.googlesource.com/chromium/src/+/1f66b4a55804cd494ec380c0a084...
==========

[commit-bot: I haz the power, 2017-05-15 21:23:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1f66b4a55804cd494ec380c0a084...