Revert of Set user agent type of transient item the same as pending item.

Revert of Set user agent type of transient item the same as pending item. (patchset #9 id:280001 of https://codereview.chromium.org/2779263002/ )

Reason for revert:
Revert because this CL is breaking downstream tests.

Original issue's description:
> Set user agent type of transient item the same as pending item.
> 
> In current code, when deciding which user agent type to use for 
> pre-loading next item, the user agent of transient item is also taken
> into  consideration, and because the user agent type of transient item
> is always MOBILE, this results in the following behavior:
> 
> Goto www.facebook.com -> Request Desktop Site ->
> Goto https://expired.badssl.com -> Goto www.amazon.com.
> 
> Now, instead of visiting the desktop version of www.amazon.com, it's
> visiting the mobile version.
> 
> This CL fixes the issue by accurately set the user agent type of 
> transient item as the user agent type of corresponding pending item.
> 
> BUG=706446
> 
> Review-Url: https://codereview.chromium.org/2779263002
> Cr-Commit-Position: refs/heads/master@{#461856}
> Committed: https://chromium.googlesource.com/chromium/src/+/0c1d4036c5f4aafb0530816aafce288cc56a691b

TBR=eugenebut@chromium.org,kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=706446
Review-Url: https://codereview.chromium.org/2798813002
Cr-Commit-Position: refs/heads/master@{#461986}
Committed: https://chromium.googlesource.com/chromium/src/+/2b3e817a6ccd91bc68501777d88659d429ca50cd

[liaoyuke, 2017-04-05 05:24:41]

The CQ bit was checked by liaoyuke@chromium.org

[liaoyuke, 2017-04-05 05:24:42]

Created Revert of Set user agent type of transient item the same as pending
item.

[commit-bot: I haz the power, 2017-04-05 05:24:59]

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

[liaoyuke, 2017-04-05 05:25:16]

Description was changed from

==========
Revert of Set user agent type of transient item the same as pending item.
(patchset #9 id:280001 of https://codereview.chromium.org/2779263002/ )

Reason for revert:
Revert because this CL is breaking downstream tests.

Original issue's description:
> Set user agent type of transient item the same as pending item.
> 
> In current code, when deciding which user agent type to use for 
> pre-loading next item, the user agent of transient item is also taken
> into  consideration, and because the user agent type of transient item
> is always MOBILE, this results in the following behavior:
> 
> Goto www.facebook.com -> Request Desktop Site ->
> Goto https://expired.badssl.com -> Goto www.amazon.com.
> 
> Now, instead of visiting the desktop version of www.amazon.com, it's
> visiting the mobile version.
> 
> This CL fixes the issue by accurately set the user agent type of 
> transient item as the user agent type of corresponding pending item.
> 
> BUG=706446
> 
> Review-Url: https://codereview.chromium.org/2779263002
> Cr-Commit-Position: refs/heads/master@{#461856}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c1d4036c5f4aafb0530816aafce...

TBR=eugenebut@chromium.org,kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=706446
==========

to

==========
Revert of Set user agent type of transient item the same as pending item.
(patchset #9 id:280001 of https://codereview.chromium.org/2779263002/ )

Reason for revert:
Revert because this CL is breaking downstream tests.

Original issue's description:
> Set user agent type of transient item the same as pending item.
> 
> In current code, when deciding which user agent type to use for 
> pre-loading next item, the user agent of transient item is also taken
> into  consideration, and because the user agent type of transient item
> is always MOBILE, this results in the following behavior:
> 
> Goto www.facebook.com -> Request Desktop Site ->
> Goto https://expired.badssl.com -> Goto www.amazon.com.
> 
> Now, instead of visiting the desktop version of www.amazon.com, it's
> visiting the mobile version.
> 
> This CL fixes the issue by accurately set the user agent type of 
> transient item as the user agent type of corresponding pending item.
> 
> BUG=706446
> 
> Review-Url: https://codereview.chromium.org/2779263002
> Cr-Commit-Position: refs/heads/master@{#461856}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c1d4036c5f4aafb0530816aafce...

TBR=eugenebut@chromium.org,kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=706446
==========

[commit-bot: I haz the power, 2017-04-05 05:25:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491369881953520, "parent_rev":
"7b9777d7a227fff0fdde91437960ba5812207f7e", "commit_rev":
"2b3e817a6ccd91bc68501777d88659d429ca50cd"}

[commit-bot: I haz the power, 2017-04-05 05:26:50]

Description was changed from

==========
Revert of Set user agent type of transient item the same as pending item.
(patchset #9 id:280001 of https://codereview.chromium.org/2779263002/ )

Reason for revert:
Revert because this CL is breaking downstream tests.

Original issue's description:
> Set user agent type of transient item the same as pending item.
> 
> In current code, when deciding which user agent type to use for 
> pre-loading next item, the user agent of transient item is also taken
> into  consideration, and because the user agent type of transient item
> is always MOBILE, this results in the following behavior:
> 
> Goto www.facebook.com -> Request Desktop Site ->
> Goto https://expired.badssl.com -> Goto www.amazon.com.
> 
> Now, instead of visiting the desktop version of www.amazon.com, it's
> visiting the mobile version.
> 
> This CL fixes the issue by accurately set the user agent type of 
> transient item as the user agent type of corresponding pending item.
> 
> BUG=706446
> 
> Review-Url: https://codereview.chromium.org/2779263002
> Cr-Commit-Position: refs/heads/master@{#461856}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c1d4036c5f4aafb0530816aafce...

TBR=eugenebut@chromium.org,kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=706446
==========

to

==========
Revert of Set user agent type of transient item the same as pending item.
(patchset #9 id:280001 of https://codereview.chromium.org/2779263002/ )

Reason for revert:
Revert because this CL is breaking downstream tests.

Original issue's description:
> Set user agent type of transient item the same as pending item.
> 
> In current code, when deciding which user agent type to use for 
> pre-loading next item, the user agent of transient item is also taken
> into  consideration, and because the user agent type of transient item
> is always MOBILE, this results in the following behavior:
> 
> Goto www.facebook.com -> Request Desktop Site ->
> Goto https://expired.badssl.com -> Goto www.amazon.com.
> 
> Now, instead of visiting the desktop version of www.amazon.com, it's
> visiting the mobile version.
> 
> This CL fixes the issue by accurately set the user agent type of 
> transient item as the user agent type of corresponding pending item.
> 
> BUG=706446
> 
> Review-Url: https://codereview.chromium.org/2779263002
> Cr-Commit-Position: refs/heads/master@{#461856}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c1d4036c5f4aafb0530816aafce...

TBR=eugenebut@chromium.org,kkhorimoto@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=706446

Review-Url: https://codereview.chromium.org/2798813002
Cr-Commit-Position: refs/heads/master@{#461986}
Committed:
https://chromium.googlesource.com/chromium/src/+/2b3e817a6ccd91bc68501777d886...
==========

[commit-bot: I haz the power, 2017-04-05 05:26:50]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/2b3e817a6ccd91bc68501777d886...

[Eugene But (OOO till 7-30), 2017-04-05 15:27:27]

lgtm