Use {To/From}JavaTime for policy timestamps
Use base::Time::ToJavaTime() and base::Time::FromJavaTime() for
conversions between base::Time and timestamps in the policy protos.
No change of behavior should be introduced, it's just a refactoring.
BUG=701045
TEST=existing tests
Review-Url: https://codereview.chromium.org/2830033003
Cr-Original-Commit-Position: refs/heads/master@{#466325}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 35629b9c2d21ae7af4ec8ebdcec1c2c21a042880
11 files changed
