Revert of Reland "Remove support for thread-based recompilation"

Revert of Reland "Remove support for thread-based recompilation" (patchset #1 id:1 of https://codereview.chromium.org/1059853004/)

Reason for revert:
still times out

Original issue's description:
> Reland "Remove support for thread-based recompilation"
>
> Original issue's description:
> > Remove support for thread-based recompilation
> >
> > BUG=v8:3608
> > R=yangguo@chromium.org
> > LOG=y
> >
> > Committed: https://crrev.com/ed5db223a19dfe126af012e894582251aa3635d7
> > Cr-Commit-Position: refs/heads/master@{#27619}
>
> BUG=v8:3608
> R=yangguo@chromium.org
> LOG=y
>
> Committed: https://crrev.com/f1ceccb8b8b352a91e6366e3e3103f1db0df6afb
> Cr-Commit-Position: refs/heads/master@{#27813}

TBR=yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3608
Committed: https://crrev.com/cf663c487f2d644ef6f3a5bc209c4994b91a0a56
Cr-Commit-Position: refs/heads/master@{#27816}

[jochen (gone - plz use gerrit), 2015-04-14 12:29:05]

Created Revert of Reland "Remove support for thread-based recompilation"

[commit-bot: I haz the power, 2015-04-14 12:29:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1082183003/1

[commit-bot: I haz the power, 2015-04-14 12:29:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-14 12:29:50]

Patchset 1 (id:??) landed as
https://crrev.com/cf663c487f2d644ef6f3a5bc209c4994b91a0a56
Cr-Commit-Position: refs/heads/master@{#27816}