tree a977852e692c0760c16eccc80afd1091135dc2a8
parent d8cc503575463ff3d81b22dad292665f2c88911e
author dsinclair <dsinclair@chromium.org> 1469560182 -0700
committer Commit bot <commit-bot@chromium.org> 1469560182 -0700

Remove pageview from map immediately

There seems to be an ownership issue in the page annotation code where removing
the annotations can result in removing the parent page view. This is fine except
that removing the parent page view removes the annotations and you can end up
with a use-after-free.

This CL removes the page view from the documents page map immediately and then
proceeds with the cleanup. Then, if we try to remove that page again it won't
be found and we won't double free.

BUG=chromium:630654

Review-Url: https://codereview.chromium.org/2179283005