Revert of Implement the script parts of custom element upgrade steps. (patchset #2 id:20001 of https://codereview.chromium.org/2035623002/ )
Reason for revert:
Speculative revert for breaking Win compile, will follow-up on the bug with more details soon.
Original issue's description:
> Implement the script parts of custom element upgrade steps.
>
> BUG=594918
>
> Committed: https://crrev.com/ee58801ba1e4a49cc2eea50d970444c7eeff9593
> Cr-Commit-Position: refs/heads/master@{#397676}
TBR=kojii@chromium.org,blink-reviews-bindings@chromium.org,haraken@chromium.org,dominicc@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=594918
Review-Url: https://codereview.chromium.org/2032373002
Cr-Commit-Position: refs/heads/master@{#397680}
10 files changed
