No 'prefs' state is necessary for an active file and it interferes
with reading the file for the previous run.
Also add a DCHECK to have future users not set a pref-key for "active"
files since it's not necessary as the file contents itself are
updated.
BUG=696721
Review-Url: https://codereview.chromium.org/2748463004
Cr-Original-Commit-Position: refs/heads/master@{#456695}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 4ff719bc73eb4d3d6b780f15392baffcf77ee062
3 files changed