Reland r239460: Remove usage of PathUtil from CommandHandler.

r239460 was reverted to revert r239458, which was not reverted eventually.
May be r239458 was not a cause of Chromium OS ASAN failure.

Previously reverted CL: crrev.com/96433003

BUG=302090
TEST=manually

Review URL: https://codereview.chromium.org/107933003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239764 0039d316-1c4b-4281-b951-d872f2087c98
Cleanup cloud policy protobufs.

Removed a proto message and fields that were using during TT phase and
aren't used anymore.

BUG=None

Review URL: https://codereview.chromium.org/111503002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239765 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239765
Roll Skia DEPS to r12589

R=rmistry@google.com

Review URL: https://codereview.chromium.org/105563005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239766 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239767 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239767