Revert of Adds thunks for getting platform handles

Revert of Adds thunks for getting platform handles (patchset #3 id:40001 of https://codereview.chromium.org/1113393002/)

Reason for revert:
Broke build.

Original issue's description:
> Adds thunks for getting platform handles
>
> BUG=none
> TEST=none
> R=viettrungluu@chromium.org
>
> Committed: https://crrev.com/8f7386b022c30b46325f8c67ba4d04d33606103b
> Cr-Commit-Position: refs/heads/master@{#327937}

TBR=viettrungluu@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Committed: https://crrev.com/781e65d533b63593da93b0fbaf2a181bffc57451
Cr-Commit-Position: refs/heads/master@{#327945}

[sky, 2015-05-01 18:21:13]

Created Revert of Adds thunks for getting platform handles

[commit-bot: I haz the power, 2015-05-01 18:22:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1123453003/1

[commit-bot: I haz the power, 2015-05-01 18:24:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-01 18:26:39]

Patchset 1 (id:??) landed as
https://crrev.com/781e65d533b63593da93b0fbaf2a181bffc57451
Cr-Commit-Position: refs/heads/master@{#327945}