Revert of Make the EarlyInitStartup Code Default

Revert of Make the EarlyInitStartup Code Default (patchset #1 id:1 of https://codereview.chromium.org/1453923002/ )

Reason for revert:
Reverting - Looks like we can't easily get perf data from the bots.

Original issue's description:
> Make the EarlyInitStartup Code Default
>
> We're satisfied with the performance characteristics of running Extension
> Feature Initialization on a background thread that we'd like to do it
> all the time now.
>
> BUG=470743
>
> Committed: https://crrev.com/697fb4718088e9b87a30f21f57168af70ef273ae
> Cr-Commit-Position: refs/heads/master@{#360352}
>
> Committed: https://crrev.com/9b13cbdc3205421a28bd583878c1108ed0eaead0
> Cr-Commit-Position: refs/heads/master@{#378308}

TBR=jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=470743
Committed: https://crrev.com/088106bebeac47281eb94ec5af24f5205b4819a1
Cr-Commit-Position: refs/heads/master@{#378782}

[robliao, 2016-03-02 17:56:00]

Created Revert of Make the EarlyInitStartup Code Default

[commit-bot: I haz the power, 2016-03-02 17:56:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1749213005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1749213005/1

[commit-bot: I haz the power, 2016-03-02 18:02:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1749213005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1749213005/1

[commit-bot: I haz the power, 2016-03-02 18:31:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1749213005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1749213005/1

[commit-bot: I haz the power, 2016-03-02 18:41:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-02 18:42:54]

Description was changed from

==========
Revert of Make the EarlyInitStartup Code Default (patchset #1 id:1 of
https://codereview.chromium.org/1453923002/ )

Reason for revert:
Reverting - Looks like we can't easily get perf data from the bots.

Original issue's description:
> Make the EarlyInitStartup Code Default
> 
> We're satisfied with the performance characteristics of running Extension
> Feature Initialization on a background thread that we'd like to do it
> all the time now.
> 
> BUG=470743
> 
> Committed: https://crrev.com/697fb4718088e9b87a30f21f57168af70ef273ae
> Cr-Commit-Position: refs/heads/master@{#360352}
> 
> Committed: https://crrev.com/9b13cbdc3205421a28bd583878c1108ed0eaead0
> Cr-Commit-Position: refs/heads/master@{#378308}

TBR=jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=470743
==========

to

==========
Revert of Make the EarlyInitStartup Code Default (patchset #1 id:1 of
https://codereview.chromium.org/1453923002/ )

Reason for revert:
Reverting - Looks like we can't easily get perf data from the bots.

Original issue's description:
> Make the EarlyInitStartup Code Default
>
> We're satisfied with the performance characteristics of running Extension
> Feature Initialization on a background thread that we'd like to do it
> all the time now.
>
> BUG=470743
>
> Committed: https://crrev.com/697fb4718088e9b87a30f21f57168af70ef273ae
> Cr-Commit-Position: refs/heads/master@{#360352}
>
> Committed: https://crrev.com/9b13cbdc3205421a28bd583878c1108ed0eaead0
> Cr-Commit-Position: refs/heads/master@{#378308}

TBR=jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=470743

Committed: https://crrev.com/088106bebeac47281eb94ec5af24f5205b4819a1
Cr-Commit-Position: refs/heads/master@{#378782}
==========

[commit-bot: I haz the power, 2016-03-02 18:42:55]

Patchset 1 (id:??) landed as
https://crrev.com/088106bebeac47281eb94ec5af24f5205b4819a1
Cr-Commit-Position: refs/heads/master@{#378782}