Revert of Update V8 to version 3.28.30 (based on bleeding_edge revision r22489).

Revert of Update V8 to version 3.28.30 (based on bleeding_edge revision r22489). (https://codereview.chromium.org/407733005/)

Reason for revert:
Seems to be causing xss-DENIED-method-with-iframe-proto.html to time out on multiple bots; see http://crbug.com/395882 .

Original issue's description:
> Update V8 to version 3.28.30 (based on bleeding_edge revision r22489).
> 
> Please reply to the V8 sheriff svenpanne@chromium.org in case of problems.
> 
> TBR=svenpanne@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284420

TBR=svenpanne@chromium.org,machenbach@chromium.org
NOTREECHECKS=true
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284572

[Peter Kasting, 2014-07-22 00:44:41]

Created Revert of Update V8 to version 3.28.30 (based on bleeding_edge revision
r22489).

[commit-bot: I haz the power, 2014-07-22 00:51:49]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/pkasting@chromium.org/405313002/1

[commit-bot: I haz the power, 2014-07-22 00:56:49]

Change committed as 284572

[Michael Achenbach, 2014-07-22 07:16:18]

A revert of this CL has been created in
https://codereview.chromium.org/411453003/ by machenbach@chromium.org.

The reason for reverting is: See
https://code.google.com/p/chromium/issues/detail?id=395882

The reason for the test failures in blink has been fixed with the last blink
roll..