Revert of suppress user-after-free from blink::WebLocalFrameImpl::setFrameWidget (patchset #1 id:1 of https://codereview.chromium.org/
1233803002/)
Reason for revert:
Appears to be fixed as of https://crrev.com/340320
Original issue's description:
> suppress user-after-free from blink::WebLocalFrameImpl::setFrameWidget
>
> TBR=dcheng@chromium.org, dpranke@chromium.org
> BUG=509508
> NOTRY=true
>
> Committed: https://crrev.com/
30978ed1372a668c6209fe8aceb20c5c3a512e24
> Cr-Commit-Position: refs/heads/master@{#338467}
TBR=dpranke@chromium.org,zhaoqin@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=509508
Review URL: https://codereview.chromium.org/
1260853002
Cr-Commit-Position: refs/heads/master@{#340611}