Adds metronome time sync dbus client

chromeos/dbus/dbus_thread_manager.h

Index: chromeos/dbus/dbus_thread_manager.h
diff --git a/chromeos/dbus/dbus_thread_manager.h b/chromeos/dbus/dbus_thread_manager.h
index fd26384a5a17817b11aacfd0b50a53de2b559507..3c76f0dfbc18e9029893c1ef2d0023426a229240 100644
--- a/chromeos/dbus/dbus_thread_manager.h
+++ b/chromeos/dbus/dbus_thread_manager.h
@@ -47,6 +47,7 @@ class ImageBurnerClient;
 class IntrospectableClient;
 class LeadershipDaemonManagerClient;
 class LorgnetteManagerClient;
+class MetronomeClient;
 class ModemMessagingClient;
 class NfcAdapterClient;
 class NfcDeviceClient;
@@ -138,6 +139,7 @@ class CHROMEOS_EXPORT DBusThreadManager {
   IntrospectableClient* GetIntrospectableClient();
   LeadershipDaemonManagerClient* GetLeadershipDaemonManagerClient();
   LorgnetteManagerClient* GetLorgnetteManagerClient();
+  MetronomeClient* GetMetronomeClient();
   ModemMessagingClient* GetModemMessagingClient();
   NfcAdapterClient* GetNfcAdapterClient();
   NfcDeviceClient* GetNfcDeviceClient();
@@ -226,6 +228,7 @@ class CHROMEOS_EXPORT DBusThreadManagerSetter {
   void SetLeadershipDaemonManagerClient(
       scoped_ptr<LeadershipDaemonManagerClient> client);
   void SetLorgnetteManagerClient(scoped_ptr<LorgnetteManagerClient> client);
+  void SetMetronomeClient(scoped_ptr<MetronomeClient> client);
   void SetShillDeviceClient(scoped_ptr<ShillDeviceClient> client);
   void SetShillIPConfigClient(scoped_ptr<ShillIPConfigClient> client);
   void SetShillManagerClient(scoped_ptr<ShillManagerClient> client);