Reland of landing "Fixed title updating for back forward navigation."

Reland of landing "Fixed title updating for back forward navigation." (patchset #1 id:1 of https://codereview.chromium.org/2689083002/ )

Reason for revert:
This revert did not help. Reverting the revert.

Original issue's description:
> Revert of Relanding "Fixed title updating for back forward navigation." (patchset #3 id:40001 of https://codereview.chromium.org/2691693002/ )
> 
> Reason for revert:
> Breaks some other tests this time:
> https://uberchromegw.corp.google.com/i/internal.bling.main/builders/iphone9-simulator-x64/builds/9939
> 
> Original issue's description:
> > Relanding "Fixed title updating for back forward navigation."
> > 
> > Chrome relies on KVO compliant "title" property to subscribe for
> > title updates. If this KVO change happens during then navigation
> > it is unclear if title was changes for the previous page, or the
> > navigation was committed and title was changed for the new page.
> > 
> > So if there is a navigation in progress WebController should ignore
> > KVO change, but it should always attempt to update title when
> > navigation is committed.
> > 
> > BUG=688047, 677356
> > 
> > Review-Url: https://codereview.chromium.org/2685803002
> > Cr-Commit-Position: refs/heads/master@{#449527}
> > (cherry picked from commit 487e4cfd53bac5944dad49cbce3b939a0c7bf035)
> > 
> > Review-Url: https://codereview.chromium.org/2691693002
> > Cr-Commit-Position: refs/heads/master@{#449828}
> > Committed: https://chromium.googlesource.com/chromium/src/+/adb03a4e58c33d0adc812a2ddae2180abe8ac148
> 
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=688047, 677356
> 
> Review-Url: https://codereview.chromium.org/2689083002
> Cr-Commit-Position: refs/heads/master@{#449881}
> Committed: https://chromium.googlesource.com/chromium/src/+/6cc15b2c2eb82ac455cd7dbfe912be9914c1c03d

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=688047, 677356
Review-Url: https://codereview.chromium.org/2694583002
Cr-Commit-Position: refs/heads/master@{#449886}
Committed: https://chromium.googlesource.com/chromium/src/+/176138f21cb2df89eb6157bb748b60207038eff4

[Eugene But (OOO till 7-30), 2017-02-12 04:13:29]

The CQ bit was checked by eugenebut@chromium.org

[Eugene But (OOO till 7-30), 2017-02-12 04:13:29]

Created Reland of landing "Fixed title updating for back forward navigation."

[commit-bot: I haz the power, 2017-02-12 04:13:38]

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, 2017-02-12 04:14:52]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486872809077730, "parent_rev":
"d47be0cc8cbf6c7b2c521c3d521e46dc89350e3e", "commit_rev":
"176138f21cb2df89eb6157bb748b60207038eff4"}

[commit-bot: I haz the power, 2017-02-12 04:16:02]

Description was changed from

==========
Reland of landing "Fixed title updating for back forward navigation." (patchset
#1 id:1 of https://codereview.chromium.org/2689083002/ )

Reason for revert:
This revert did not help. Reverting the revert.

Original issue's description:
> Revert of Relanding "Fixed title updating for back forward navigation."
(patchset #3 id:40001 of https://codereview.chromium.org/2691693002/ )
> 
> Reason for revert:
> Breaks some other tests this time:
>
https://uberchromegw.corp.google.com/i/internal.bling.main/builders/iphone9-s...
> 
> Original issue's description:
> > Relanding "Fixed title updating for back forward navigation."
> > 
> > Chrome relies on KVO compliant "title" property to subscribe for
> > title updates. If this KVO change happens during then navigation
> > it is unclear if title was changes for the previous page, or the
> > navigation was committed and title was changed for the new page.
> > 
> > So if there is a navigation in progress WebController should ignore
> > KVO change, but it should always attempt to update title when
> > navigation is committed.
> > 
> > BUG=688047, 677356
> > 
> > Review-Url: https://codereview.chromium.org/2685803002
> > Cr-Commit-Position: refs/heads/master@{#449527}
> > (cherry picked from commit 487e4cfd53bac5944dad49cbce3b939a0c7bf035)
> > 
> > Review-Url: https://codereview.chromium.org/2691693002
> > Cr-Commit-Position: refs/heads/master@{#449828}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/adb03a4e58c33d0adc812a2ddae2...
> 
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=688047, 677356
> 
> Review-Url: https://codereview.chromium.org/2689083002
> Cr-Commit-Position: refs/heads/master@{#449881}
> Committed:
https://chromium.googlesource.com/chromium/src/+/6cc15b2c2eb82ac455cd7dbfe912...

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=688047, 677356
==========

to

==========
Reland of landing "Fixed title updating for back forward navigation." (patchset
#1 id:1 of https://codereview.chromium.org/2689083002/ )

Reason for revert:
This revert did not help. Reverting the revert.

Original issue's description:
> Revert of Relanding "Fixed title updating for back forward navigation."
(patchset #3 id:40001 of https://codereview.chromium.org/2691693002/ )
> 
> Reason for revert:
> Breaks some other tests this time:
>
https://uberchromegw.corp.google.com/i/internal.bling.main/builders/iphone9-s...
> 
> Original issue's description:
> > Relanding "Fixed title updating for back forward navigation."
> > 
> > Chrome relies on KVO compliant "title" property to subscribe for
> > title updates. If this KVO change happens during then navigation
> > it is unclear if title was changes for the previous page, or the
> > navigation was committed and title was changed for the new page.
> > 
> > So if there is a navigation in progress WebController should ignore
> > KVO change, but it should always attempt to update title when
> > navigation is committed.
> > 
> > BUG=688047, 677356
> > 
> > Review-Url: https://codereview.chromium.org/2685803002
> > Cr-Commit-Position: refs/heads/master@{#449527}
> > (cherry picked from commit 487e4cfd53bac5944dad49cbce3b939a0c7bf035)
> > 
> > Review-Url: https://codereview.chromium.org/2691693002
> > Cr-Commit-Position: refs/heads/master@{#449828}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/adb03a4e58c33d0adc812a2ddae2...
> 
> TBR=kkhorimoto@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=688047, 677356
> 
> Review-Url: https://codereview.chromium.org/2689083002
> Cr-Commit-Position: refs/heads/master@{#449881}
> Committed:
https://chromium.googlesource.com/chromium/src/+/6cc15b2c2eb82ac455cd7dbfe912...

TBR=kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=688047, 677356

Review-Url: https://codereview.chromium.org/2694583002
Cr-Commit-Position: refs/heads/master@{#449886}
Committed:
https://chromium.googlesource.com/chromium/src/+/176138f21cb2df89eb6157bb748b...
==========

[commit-bot: I haz the power, 2017-02-12 04:16:04]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/176138f21cb2df89eb6157bb748b...