Revert of Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.

Revert of Update the nacl_bootstrap GN code to work in ChromeOS chroot builds. (patchset #2 id:20001 of https://codereview.chromium.org/2085683004/ )

Reason for revert:
It looks like this breaks CrOS ARM builds; see crbug.com/629593 .

Original issue's description:
> Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.
> 
> In ChromeOS chroot builds, they use their own compiler toolchain
> and set a bunch of target flags, and the prior version of the
> nacl_bootstrap_* toolchains weren't picking them up properly.
> 
> This CL switches to use the new //build/toolchain/cros:nacl_bootstrap
> toolchain that mimics the //build/toolchain/cros:target toolchain and uses
> all of the same settings except that it forces off use_debug_fission
> and use_gold.
> 
> R=mcgrathr@chromium.org, llozano@chromium.org, bradnelson@chromium.org
> BUG=621686
> 
> Committed: https://chromium.googlesource.com/native_client/src/native_client/+/0949e1bef9d6b25ee44eb69a54e0cc6f8a677375

TBR=llozano@chromium.org,mcgrathr@chromium.org,bradnelson@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=621686
Committed: https://chromium.googlesource.com/native_client/src/native_client/+/a07450d163bfb18a469db4e630a632f2f206c9cf

[Dirk Pranke, 2016-07-28 18:31:20]

Created Revert of Update the nacl_bootstrap GN code to work in ChromeOS chroot
builds.

[Roland McGrath, 2016-07-28 18:35:13]

lgtm

[llozano1, 2016-07-28 18:39:22]

llozano@google.com changed reviewers:
+ llozano@google.com

[llozano1, 2016-07-28 18:39:22]

lgtm

[Dirk Pranke, 2016-07-28 18:39:59]

The CQ bit was checked by dpranke@chromium.org

[commit-bot: I haz the power, 2016-07-28 18:40:07]

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, 2016-07-28 19:27:49]

Description was changed from

==========
Revert of Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.
(patchset #2 id:20001 of https://codereview.chromium.org/2085683004/ )

Reason for revert:
It looks like this breaks CrOS ARM builds; see crbug.com/629593 .

Original issue's description:
> Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.
> 
> In ChromeOS chroot builds, they use their own compiler toolchain
> and set a bunch of target flags, and the prior version of the
> nacl_bootstrap_* toolchains weren't picking them up properly.
> 
> This CL switches to use the new //build/toolchain/cros:nacl_bootstrap
> toolchain that mimics the //build/toolchain/cros:target toolchain and uses
> all of the same settings except that it forces off use_debug_fission
> and use_gold.
> 
> R=mcgrathr@chromium.org, llozano@chromium.org, bradnelson@chromium.org
> BUG=621686
> 
> Committed:
https://chromium.googlesource.com/native_client/src/native_client/+/0949e1bef...

TBR=llozano@chromium.org,mcgrathr@chromium.org,bradnelson@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=621686
==========

to

==========
Revert of Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.
(patchset #2 id:20001 of https://codereview.chromium.org/2085683004/ )

Reason for revert:
It looks like this breaks CrOS ARM builds; see crbug.com/629593 .

Original issue's description:
> Update the nacl_bootstrap GN code to work in ChromeOS chroot builds.
> 
> In ChromeOS chroot builds, they use their own compiler toolchain
> and set a bunch of target flags, and the prior version of the
> nacl_bootstrap_* toolchains weren't picking them up properly.
> 
> This CL switches to use the new //build/toolchain/cros:nacl_bootstrap
> toolchain that mimics the //build/toolchain/cros:target toolchain and uses
> all of the same settings except that it forces off use_debug_fission
> and use_gold.
> 
> R=mcgrathr@chromium.org, llozano@chromium.org, bradnelson@chromium.org
> BUG=621686
> 
> Committed:
https://chromium.googlesource.com/native_client/src/native_client/+/0949e1bef...

TBR=llozano@chromium.org,mcgrathr@chromium.org,bradnelson@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=621686

Committed:
https://chromium.googlesource.com/native_client/src/native_client/+/a07450d16...
==========

[commit-bot: I haz the power, 2016-07-28 19:27:50]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/native_client/src/native_client/+/a07450d16...

[Dirk Pranke, 2016-07-28 21:35:47]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2188353002/ by dpranke@chromium.org.

The reason for reverting is: re-reverting (i.e., relanding), since we're not
sure this'll actually fix things..