Remove ReleaseTrack related constants out of DBus.

Get/SetTrack methods have been deprecated. This CL removes their DBus
constants.

BUG=chromium:221850
TEST=Built with https://codereview.chromium.org/21015010

Change-Id: I8294d852e668bc789daeca28a0058ecf0686def4
Reviewed-on: https://gerrit.chromium.org/gerrit/63838
Reviewed-by: Darren Krahn <dkrahn@chromium.org>
Tested-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Chris Sosa <sosa@chromium.org>
1 file changed
tree: 5fe69c17c272f06c19222617ea4ccc675e5d5a41
  1. dbus/
  2. switches/
  3. README
  4. system_api.gyp