Revert of Sprinkle some release asserts over HTMLFrameElementBase

Revert of Sprinkle some release asserts over HTMLFrameElementBase (patchset #3 id:40001 of https://codereview.chromium.org/2169453002/ )

Reason for revert:
Unflake bots

Original issue's description:
> Sprinkle some release asserts over HTMLFrameElementBase
>
> It appears to be difficult to get this right, but it's quite bad if we
> get it wrong, so rather crash.
>
> BUG=628942
> R=dcheng@chromium.org
>
> Committed: https://crrev.com/b9e3d96067ff8c016d2505ab2a1f6b9d985c6b35
> Cr-Commit-Position: refs/heads/master@{#407430}

TBR=dominicc@chromium.org,dcheng@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=628942
Committed: https://crrev.com/cd46b1e9ac4ea2d8f8492022dcb3638ef452f038
Cr-Commit-Position: refs/heads/master@{#407766}

[jochen (gone - plz use gerrit), 2016-07-26 09:55:38]

The CQ bit was checked by jochen@chromium.org

[jochen (gone - plz use gerrit), 2016-07-26 09:55:39]

Created Revert of Sprinkle some release asserts over HTMLFrameElementBase

[commit-bot: I haz the power, 2016-07-26 09:55:57]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[dcheng, 2016-07-26 11:01:06]

lgtm

[commit-bot: I haz the power, 2016-07-26 11:14:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-26 11:16:40]

Description was changed from

==========
Revert of Sprinkle some release asserts over HTMLFrameElementBase (patchset #3
id:40001 of https://codereview.chromium.org/2169453002/ )

Reason for revert:
Unflake bots

Original issue's description:
> Sprinkle some release asserts over HTMLFrameElementBase
> 
> It appears to be difficult to get this right, but it's quite bad if we
> get it wrong, so rather crash.
> 
> BUG=628942
> R=dcheng@chromium.org
> 
> Committed: https://crrev.com/b9e3d96067ff8c016d2505ab2a1f6b9d985c6b35
> Cr-Commit-Position: refs/heads/master@{#407430}

TBR=dominicc@chromium.org,dcheng@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=628942
==========

to

==========
Revert of Sprinkle some release asserts over HTMLFrameElementBase (patchset #3
id:40001 of https://codereview.chromium.org/2169453002/ )

Reason for revert:
Unflake bots

Original issue's description:
> Sprinkle some release asserts over HTMLFrameElementBase
>
> It appears to be difficult to get this right, but it's quite bad if we
> get it wrong, so rather crash.
>
> BUG=628942
> R=dcheng@chromium.org
>
> Committed: https://crrev.com/b9e3d96067ff8c016d2505ab2a1f6b9d985c6b35
> Cr-Commit-Position: refs/heads/master@{#407430}

TBR=dominicc@chromium.org,dcheng@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=628942

Committed: https://crrev.com/cd46b1e9ac4ea2d8f8492022dcb3638ef452f038
Cr-Commit-Position: refs/heads/master@{#407766}
==========

[commit-bot: I haz the power, 2016-07-26 11:16:41]

Patchset 1 (id:??) landed as
https://crrev.com/cd46b1e9ac4ea2d8f8492022dcb3638ef452f038
Cr-Commit-Position: refs/heads/master@{#407766}