GitLab

Now that last committed URLs are tracked on RFH instead of
FrameTreeNode, there's no harm in keeping this URL around after a RFH
becomes pending deletion.  Keeping it might be useful for security
checks on such RFHs, and not keeping it might actually lead to
correctness issues when last committed URLs are checked for pending
delete RFHs.

Bug: 836211
Change-Id: I2090732bd1f1583430e2eafcf732965f43e00c44
Reviewed-on: https://chromium-review.googlesource.com/1026971
Commit-Queue: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553793}