Revert of [Mac] Implement a new WebSandboxSupport method to get the display's color space.

Revert of [Mac] Implement a new WebSandboxSupport method to get the display's color space. (patchset #1 id:1 of https://codereview.chromium.org/549213004/)

Reason for revert:
Not needed, used https://codereview.chromium.org/554033002 instead.

Original issue's description:
> [Mac] Implement a new WebSandboxSupport method to get the display's color space.
>
> This new interface is defined at https://codereview.chromium.org/554033002/.
>
> BUG=397642, 306348
> R=avi@chromium.org
>
> Committed: https://crrev.com/b6ae4d0ecc983a71a32ab1480a70e065c718c195
> Cr-Commit-Position: refs/heads/master@{#293852}

TBR=avi@chromium.org,rsesek@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=397642, 306348
Committed: https://crrev.com/b4d09b93421cfb242c020e1cf41cdf6374298962
Cr-Commit-Position: refs/heads/master@{#294786}

[Noel Gordon, 2014-09-15 06:39:51]

Created Revert of [Mac] Implement a new WebSandboxSupport method to get the
display's color space.

[commit-bot: I haz the power, 2014-09-15 06:40:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/563943003/1

[commit-bot: I haz the power, 2014-09-15 06:44:12]

Committed patchset #1 (id:1) as dadd08465ce0373f7bac163dfd9940779a98b56b

[commit-bot: I haz the power, 2014-09-15 06:47:58]

Patchset 1 (id:??) landed as
https://crrev.com/b4d09b93421cfb242c020e1cf41cdf6374298962
Cr-Commit-Position: refs/heads/master@{#294786}