Revert of Enforce marking "override" for functions overriding Blink.

Revert of Enforce marking "override" for functions overriding Blink. (patchset #19 id:360001 of https://codereview.chromium.org/1370923002/ )

Reason for revert:
Missed one.

Original issue's description:
> Enforce marking "override" for functions overriding Blink.
>
> BUG=535367
> TEST=it all stays working
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> TBR=ben@chromium.org
>
> Committed: https://crrev.com/32ff552858e014d454ce8b181f5aca1dfcf8f8fd
> Cr-Commit-Position: refs/heads/master@{#363482}

TBR=thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=535367
Committed: https://crrev.com/50e3df675d58385e566645effb6ccfd3c8562443
Cr-Commit-Position: refs/heads/master@{#363492}

[Avi (use Gerrit), 2015-12-07 16:09:20]

Created Revert of Enforce marking "override" for functions overriding Blink.

[commit-bot: I haz the power, 2015-12-07 16:10:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1504913002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1504913002/1

[commit-bot: I haz the power, 2015-12-07 16:12:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-07 16:13:26]

Description was changed from

==========
Revert of Enforce marking "override" for functions overriding Blink. (patchset
#19 id:360001 of https://codereview.chromium.org/1370923002/ )

Reason for revert:
Missed one.

Original issue's description:
> Enforce marking "override" for functions overriding Blink.
> 
> BUG=535367
> TEST=it all stays working
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> TBR=ben@chromium.org
> 
> Committed: https://crrev.com/32ff552858e014d454ce8b181f5aca1dfcf8f8fd
> Cr-Commit-Position: refs/heads/master@{#363482}

TBR=thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=535367
==========

to

==========
Revert of Enforce marking "override" for functions overriding Blink. (patchset
#19 id:360001 of https://codereview.chromium.org/1370923002/ )

Reason for revert:
Missed one.

Original issue's description:
> Enforce marking "override" for functions overriding Blink.
>
> BUG=535367
> TEST=it all stays working
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> TBR=ben@chromium.org
>
> Committed: https://crrev.com/32ff552858e014d454ce8b181f5aca1dfcf8f8fd
> Cr-Commit-Position: refs/heads/master@{#363482}

TBR=thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=535367

Committed: https://crrev.com/50e3df675d58385e566645effb6ccfd3c8562443
Cr-Commit-Position: refs/heads/master@{#363492}
==========

[commit-bot: I haz the power, 2015-12-07 16:13:27]

Patchset 1 (id:??) landed as
https://crrev.com/50e3df675d58385e566645effb6ccfd3c8562443
Cr-Commit-Position: refs/heads/master@{#363492}