Move ParseConnection*() to connection_utils.
We don't need real_shill_provider if USE_DBUS is 0, but we still need
these functions, and they have a duplicate copy in connection_manager,
so put them in utils and deduplicate.
Also moved StringForConnectionType() to connection_utils.
Bug: 28800946
Test: mma
Change-Id: If535fdc52bc8fb267921bea02b31d8d6580d5d54
diff --git a/update_manager/chromeos_policy.cc b/update_manager/chromeos_policy.cc
index 900a845..ec2b9f0 100644
--- a/update_manager/chromeos_policy.cc
+++ b/update_manager/chromeos_policy.cc
@@ -33,6 +33,8 @@
using base::Time;
using base::TimeDelta;
+using chromeos_update_engine::ConnectionTethering;
+using chromeos_update_engine::ConnectionType;
using chromeos_update_engine::ErrorCode;
using std::get;
using std::max;