Add optional data parameter to SetAccessCheckCallback

Add optional data parameter to SetAccessCheckCallback

The data field is passed to the failed access check callback which blink
depends on.

BUG=none
R=verwaest@chromium.org
LOG=n

Committed: https://crrev.com/e2675937d5b6d2e555edeaabcda7ce70551ea236
Cr-Commit-Position: refs/heads/master@{#31555}

[Toon Verwaest, 2015-10-26 09:56:38]

lgtm

[jochen (gone - plz use gerrit), 2015-10-26 09:59:06]

The CQ bit was checked by jochen@chromium.org

[commit-bot: I haz the power, 2015-10-26 09:59:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1427443002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1427443002/1

[commit-bot: I haz the power, 2015-10-26 10:42:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-26 10:42:23]

Patchset 1 (id:??) landed as
https://crrev.com/e2675937d5b6d2e555edeaabcda7ce70551ea236
Cr-Commit-Position: refs/heads/master@{#31555}