Add Finch experiment for deleting session cookies at shutdown.
commitc21ad4b0756b9acbb565e8455f50a31b526560df
authorerikchen <erikchen@chromium.org>
Thu, 21 May 2015 21:23:30 +0000 (21 14:23 -0700)
committerCommit bot <commit-bot@chromium.org>
Thu, 21 May 2015 21:24:44 +0000 (21 21:24 +0000)
treef124615e751a5b9545483bc683e204c4c0324b5c
parentde7b4383012bcc841cfa267a46c0d85aca8faba6
Add Finch experiment for deleting session cookies at shutdown.

Session cookies get deleted at startup. If at least one cookie gets deleted,
there is a non-trivial impact on startup time. The goal is to move this I/O
intensive task from startup to shutdown, and measure the impact on startup and
shutdown. Session cookies still get deleted at startup, but this operation is
expected to be fast if no cookies are deleted.

BUG=488314

Review URL: https://codereview.chromium.org/1128233009

Cr-Commit-Position: refs/heads/master@{#330992}
net/extras/sqlite/sqlite_persistent_cookie_store.cc
tools/metrics/histograms/histograms.xml