Revert of Add CHECKs to try to narrow down cause of bad internal fields in Window DOM wrapper

Revert of Add CHECKs to try to narrow down cause of bad internal fields in Window DOM wrapper (patchset #2 id:20001 of https://codereview.chromium.org/2736533002/ )

Reason for revert:
Reverting debugging patch

Original issue's description:
> Add CHECKs to try to narrow down cause of bad internal fields in Window DOM wrapper
> 
> BUG=696528
> 
> Review-Url: https://codereview.chromium.org/2736533002
> Cr-Commit-Position: refs/heads/master@{#454781}
> Committed: https://chromium.googlesource.com/chromium/src/+/7cf0339964c7dcb8b77660a31bed2467b9f7cc3a

TBR=jbroman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=696528
Review-Url: https://codereview.chromium.org/2736733003
Cr-Commit-Position: refs/heads/master@{#454967}
Committed: https://chromium.googlesource.com/chromium/src/+/1652d291e9cebc86b0b671c0d08b2a5964780da6

[dcheng, 2017-03-06 19:41:09]

The CQ bit was checked by dcheng@chromium.org

[dcheng, 2017-03-06 19:41:10]

Created Revert of Add CHECKs to try to narrow down cause of bad internal fields
in Window DOM wrapper

[commit-bot: I haz the power, 2017-03-06 19:41:57]

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

[haraken, 2017-03-06 20:00:47]

LGTM

[commit-bot: I haz the power, 2017-03-06 21:39:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488829269713430, "parent_rev":
"15bfa34181b01fc1bbf0cb20a55ba38e1edb6fb8", "commit_rev":
"1652d291e9cebc86b0b671c0d08b2a5964780da6"}

[commit-bot: I haz the power, 2017-03-06 21:40:22]

Description was changed from

==========
Revert of Add CHECKs to try to narrow down cause of bad internal fields in
Window DOM wrapper (patchset #2 id:20001 of
https://codereview.chromium.org/2736533002/ )

Reason for revert:
Reverting debugging patch

Original issue's description:
> Add CHECKs to try to narrow down cause of bad internal fields in Window DOM
wrapper
> 
> BUG=696528
> 
> Review-Url: https://codereview.chromium.org/2736533002
> Cr-Commit-Position: refs/heads/master@{#454781}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7cf0339964c7dcb8b77660a31bed...

TBR=jbroman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=696528
==========

to

==========
Revert of Add CHECKs to try to narrow down cause of bad internal fields in
Window DOM wrapper (patchset #2 id:20001 of
https://codereview.chromium.org/2736533002/ )

Reason for revert:
Reverting debugging patch

Original issue's description:
> Add CHECKs to try to narrow down cause of bad internal fields in Window DOM
wrapper
> 
> BUG=696528
> 
> Review-Url: https://codereview.chromium.org/2736533002
> Cr-Commit-Position: refs/heads/master@{#454781}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7cf0339964c7dcb8b77660a31bed...

TBR=jbroman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=696528

Review-Url: https://codereview.chromium.org/2736733003
Cr-Commit-Position: refs/heads/master@{#454967}
Committed:
https://chromium.googlesource.com/chromium/src/+/1652d291e9cebc86b0b671c0d08b...
==========

[commit-bot: I haz the power, 2017-03-06 21:40:23]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1652d291e9cebc86b0b671c0d08b...