Reland of Suppress -Wnonportable-include-path on clang tot bots

Reland of Suppress -Wnonportable-include-path on clang tot bots (patchset #1 id:1 of https://codereview.chromium.org/2043813002/ )

Reason for revert:
Warning landed again upstream.

Original issue's description:
> Revert of Suppress -Wnonportable-include-path on clang tot bots (patchset #2 id:20001 of https://codereview.chromium.org/2040533003/ )
>
> Reason for revert:
> The Clang warning was removed again in r271761.
>
> Original issue's description:
> > Suppress -Wnonportable-include-path on clang tot bots
> >
> > BUG=617318
> > R=hans@chromium.org
> >
> > Committed: https://chromium.googlesource.com/chromium/src/+/2bc751024e4ddf3f50594abdbf3c54b77df84562
>
> TBR=thakis@chromium.org
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=617318
>
> Committed: https://crrev.com/2b359d2e5b4f7639055c9c6ff3ed39a03a2a3a0b
> Cr-Commit-Position: refs/heads/master@{#398065}

TBR=hans@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=617318
Committed: https://crrev.com/7d9add3bd7c9655d92641fb2aac427d1cb417095
Cr-Commit-Position: refs/heads/master@{#399714}

[Nico, 2016-06-14 14:20:33]

The CQ bit was checked by thakis@chromium.org

[Nico, 2016-06-14 14:20:34]

Created Reland of Suppress -Wnonportable-include-path on clang tot bots

[commit-bot: I haz the power, 2016-06-14 14:21:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2069603002/1

[commit-bot: I haz the power, 2016-06-14 15:28:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-14 15:28:08]

CQ bit was unchecked

[commit-bot: I haz the power, 2016-06-14 15:52:18]

Description was changed from

==========
Reland of Suppress -Wnonportable-include-path on clang tot bots (patchset #1
id:1 of https://codereview.chromium.org/2043813002/ )

Reason for revert:
Warning landed again upstream.

Original issue's description:
> Revert of Suppress -Wnonportable-include-path on clang tot bots (patchset #2
id:20001 of https://codereview.chromium.org/2040533003/ )
> 
> Reason for revert:
> The Clang warning was removed again in r271761.
> 
> Original issue's description:
> > Suppress -Wnonportable-include-path on clang tot bots
> >
> > BUG=617318
> > R=hans@chromium.org
> >
> > Committed:
https://chromium.googlesource.com/chromium/src/+/2bc751024e4ddf3f50594abdbf3c...
> 
> TBR=thakis@chromium.org
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=617318
> 
> Committed: https://crrev.com/2b359d2e5b4f7639055c9c6ff3ed39a03a2a3a0b
> Cr-Commit-Position: refs/heads/master@{#398065}

TBR=hans@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=617318
==========

to

==========
Reland of Suppress -Wnonportable-include-path on clang tot bots (patchset #1
id:1 of https://codereview.chromium.org/2043813002/ )

Reason for revert:
Warning landed again upstream.

Original issue's description:
> Revert of Suppress -Wnonportable-include-path on clang tot bots (patchset #2
id:20001 of https://codereview.chromium.org/2040533003/ )
>
> Reason for revert:
> The Clang warning was removed again in r271761.
>
> Original issue's description:
> > Suppress -Wnonportable-include-path on clang tot bots
> >
> > BUG=617318
> > R=hans@chromium.org
> >
> > Committed:
https://chromium.googlesource.com/chromium/src/+/2bc751024e4ddf3f50594abdbf3c...
>
> TBR=thakis@chromium.org
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=617318
>
> Committed: https://crrev.com/2b359d2e5b4f7639055c9c6ff3ed39a03a2a3a0b
> Cr-Commit-Position: refs/heads/master@{#398065}

TBR=hans@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=617318

Committed: https://crrev.com/7d9add3bd7c9655d92641fb2aac427d1cb417095
Cr-Commit-Position: refs/heads/master@{#399714}
==========

[commit-bot: I haz the power, 2016-06-14 15:52:18]

Patchset 1 (id:??) landed as
https://crrev.com/7d9add3bd7c9655d92641fb2aac427d1cb417095
Cr-Commit-Position: refs/heads/master@{#399714}