[MIPS] Add seccomp bpf support

[MIPS] Add seccomp bpf support

Add support for seccomp bpf sandboxing on MIPS architecture.
Enable testing of seccomp bpf sandbox.

Support for seccomp bpf for MIPS was added in Linux kernel version 3.15.

This patchset was reviewed in https://chromiumcodereview.appspot.com/260793003/ and re-created
to workaround a commit-queue issue.

BUG=369594
TEST=sandbox_linux_unittests

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285538

[nedeljko, 2014-07-23 12:06:58]

This issue was created as a workaround for a problem with base URL in issue
260793003 that prevented committing patch set from that issue to commit bot.

[nedeljko, 2014-07-23 12:36:25]

Please have a look.

Thanks.

[jln (very slow on Chromium), 2014-07-23 19:09:24]

lgtm based on the previous reviews at
https://chromiumcodereview.appspot.com/260793003/

I changed your commit message to include this information.

[jln (very slow on Chromium), 2014-07-23 19:09:43]

The CQ bit was checked by jln@chromium.org

[commit-bot: I haz the power, 2014-07-23 19:11:26]

CQ is trying da patch. Follow status at

https://chromium-status.appspot.com/cq/nedeljko.babic@imgtec.com/409403003/20001

[commit-bot: I haz the power, 2014-07-23 22:22:16]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_aosp on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_aosp/builds/9...)
  android_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_clang_dbg/bui...)
  android_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg/builds/20...)
  win_chromium_x64_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_x64_rel/...)

[commit-bot: I haz the power, 2014-07-23 22:29:55]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-23 22:29:56]

Try jobs failed on following builders:
  android_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_clang_dbg/bui...)
  android_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg/builds/20...)

[nedeljko, 2014-07-24 13:33:32]

I had a problem with Android and this Patch Set solves it.

I will commit this in a few hours if there are no objections in the meantime.

Thanks.

[jln (very slow on Chromium), 2014-07-24 17:19:42]

On 2014/07/24 13:33:32, nedeljko wrote:
> I had a problem with Android and this Patch Set solves it.
> 
> I will commit this in a few hours if there are no objections in the meantime.
> 
> Thanks.

Yeah, lgtm

[nedeljko, 2014-07-24 20:09:11]

The CQ bit was checked by nedeljko.babic@imgtec.com

[commit-bot: I haz the power, 2014-07-24 20:13:45]

CQ is trying da patch. Follow status at

https://chromium-status.appspot.com/cq/nedeljko.babic@imgtec.com/409403003/40001

[commit-bot: I haz the power, 2014-07-24 23:52:24]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_chromium_chromeos_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_chrome...)
  linux_chromium_rel_swarming on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel_sw...)

[commit-bot: I haz the power, 2014-07-25 00:29:23]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-25 00:29:24]

Try jobs failed on following builders:
  linux_chromium_rel_swarming on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel_sw...)

[nedeljko, 2014-07-25 08:28:51]

The CQ bit was checked by nedeljko.babic@imgtec.com

[commit-bot: I haz the power, 2014-07-25 08:30:12]

CQ is trying da patch. Follow status at

https://chromium-status.appspot.com/cq/nedeljko.babic@imgtec.com/409403003/40001

[commit-bot: I haz the power, 2014-07-25 09:03:48]

Change committed as 285538