Revert of Roll ASan/Win to LLVM r229860

Revert of Roll ASan/Win to LLVM r229860 (patchset #1 id:1 of https://codereview.chromium.org/911323004/)

Reason for revert:
Probable reason for Sanitizer CHECK failure in CHECK failed: "((curr_thread)) != (0)" (0x0, 0x0)

BUG=414136, 459722
Original issue's description:
> Roll ASan/Win to LLVM r229860
>
> This should fix
> BUG=459722
>
> Please note I'm rolling this without waiting for the ASan/Win FYI bot to cycle
> (takes ~4 hours) to reduce the time it takes the LKGR ASan builder to turn green
> (assuming r229860 is most likely OK).  If it isn't OK, we'll need to roll once
> again when we know the next stable LLVM revision.
>
> TBR=inferno@chromium.org
> NOTRY=true
>
> Committed: https://crrev.com/fea6440d7458b483d1e230be5e27a5a90e077a80
> Cr-Commit-Position: refs/heads/master@{#317056}

TBR=timurrrr@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/7e94fd20fcd956162a62d8e7b35b14f76deba495
Cr-Commit-Position: refs/heads/master@{#317880}

[inferno, 2015-02-24 20:33:46]

Created Revert of Roll ASan/Win to LLVM r229860

[commit-bot: I haz the power, 2015-02-24 20:35:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/953063003/1

[commit-bot: I haz the power, 2015-02-24 20:36:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-24 20:38:15]

Patchset 1 (id:??) landed as
https://crrev.com/7e94fd20fcd956162a62d8e7b35b14f76deba495
Cr-Commit-Position: refs/heads/master@{#317880}

[Timur Iskhodzhanov, 2015-02-25 14:17:15]

LGTM

[Timur Iskhodzhanov, 2015-02-27 14:18:02]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/965763002/ by timurrrr@chromium.org.

The reason for reverting is: It didn't help, see
https://code.google.com/p/chromium/issues/detail?id=414136#c28.