Reland: Optimization: Make clean-up of DeviceTempFile() async

This reverts commit 7dea1d48edbfb78aefa5ee2b47d7f42827c33e27.

BUG=

Review URL: https://codereview.chromium.org/1311413002

Cr-Commit-Position: refs/heads/master@{#345494}
1 file changed