Revert of mac and ios: Build third-party code with -Wall.

Revert of mac and ios: Build third-party code with -Wall. (patchset #2 id:20001 of https://codereview.chromium.org/1555843002/ )

Reason for revert:
Fails compilation on Mac GPU bots.

Original issue's description:
> mac and ios: Build third-party code with -Wall.
>
> This lands the mac and ios build/common.gypi bits of
> https://codereview.chromium.org/1551753002/ (reviewed there)
>
> BUG=573250
> R=thestig@chromium.org
> TBR=thestig@chromium.org
>
> Committed: https://crrev.com/9830789346abd3d8211deff1ebe7a7f5753ba3fc
> Cr-Commit-Position: refs/heads/master@{#367255}
>
> Committed: https://crrev.com/de5c041e67fa5abee83359b9346ca4896f1723ca
> Cr-Commit-Position: refs/heads/master@{#367263}

TBR=thestig@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=573250
Committed: https://crrev.com/6f0ae110927c19c75dac785887d56dc61c90abc5
Cr-Commit-Position: refs/heads/master@{#367267}

[Geoff Lang, 2016-01-01 23:03:41]

Created Revert of mac and ios: Build third-party code with -Wall.

[commit-bot: I haz the power, 2016-01-01 23:03:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1556843002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1556843002/1

[commit-bot: I haz the power, 2016-01-01 23:04:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-01 23:05:38]

Description was changed from

==========
Revert of mac and ios: Build third-party code with -Wall. (patchset #2 id:20001
of https://codereview.chromium.org/1555843002/ )

Reason for revert:
Fails compilation on Mac GPU bots.

Original issue's description:
> mac and ios: Build third-party code with -Wall.
> 
> This lands the mac and ios build/common.gypi bits of
> https://codereview.chromium.org/1551753002/ (reviewed there)
> 
> BUG=573250
> R=thestig@chromium.org
> TBR=thestig@chromium.org
> 
> Committed: https://crrev.com/9830789346abd3d8211deff1ebe7a7f5753ba3fc
> Cr-Commit-Position: refs/heads/master@{#367255}
> 
> Committed: https://crrev.com/de5c041e67fa5abee83359b9346ca4896f1723ca
> Cr-Commit-Position: refs/heads/master@{#367263}

TBR=thestig@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=573250
==========

to

==========
Revert of mac and ios: Build third-party code with -Wall. (patchset #2 id:20001
of https://codereview.chromium.org/1555843002/ )

Reason for revert:
Fails compilation on Mac GPU bots.

Original issue's description:
> mac and ios: Build third-party code with -Wall.
>
> This lands the mac and ios build/common.gypi bits of
> https://codereview.chromium.org/1551753002/ (reviewed there)
>
> BUG=573250
> R=thestig@chromium.org
> TBR=thestig@chromium.org
>
> Committed: https://crrev.com/9830789346abd3d8211deff1ebe7a7f5753ba3fc
> Cr-Commit-Position: refs/heads/master@{#367255}
>
> Committed: https://crrev.com/de5c041e67fa5abee83359b9346ca4896f1723ca
> Cr-Commit-Position: refs/heads/master@{#367263}

TBR=thestig@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=573250

Committed: https://crrev.com/6f0ae110927c19c75dac785887d56dc61c90abc5
Cr-Commit-Position: refs/heads/master@{#367267}
==========

[commit-bot: I haz the power, 2016-01-01 23:05:39]

Patchset 1 (id:??) landed as
https://crrev.com/6f0ae110927c19c75dac785887d56dc61c90abc5
Cr-Commit-Position: refs/heads/master@{#367267}

[Geoff Lang, 2016-01-01 23:14:24]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1554923002/ by geofflang@chromium.org.

The reason for reverting is: thakis@ plans to address the failing bots..