b8a62ea0c5
At startup, we make a list of all the temp directories that already exist and then nuke them on a background thread after a five second delay. The five second delay isn't particularly satisfying, but I think it's wortwhile to get this work off the critical path of startup. R=eseidel@chromium.org, eseidel@google.com Review URL: https://codereview.chromium.org/1228083003 .