Hook up system clock update dbus signal to chrome and ash tray ui.

chromeos/dbus/mock_dbus_thread_manager.h

Index: chromeos/dbus/mock_dbus_thread_manager.h
diff --git a/chromeos/dbus/mock_dbus_thread_manager.h b/chromeos/dbus/mock_dbus_thread_manager.h
index ee6aeb516522bf4e5beb3054fe68ee680ab6f036..85d752f05274f39eef6695dd31adb558354dcd7a 100644
--- a/chromeos/dbus/mock_dbus_thread_manager.h
+++ b/chromeos/dbus/mock_dbus_thread_manager.h
@@ -42,6 +42,7 @@ class MockPermissionBrokerClient;
 class MockPowerManagerClient;
 class MockSessionManagerClient;
 class MockSMSClient;
+class MockSystemClockClient;
 class MockUpdateEngineClient;
 class PowerPolicyController;
 
@@ -82,6 +83,7 @@ class MockDBusThreadManager : public DBusThreadManager {
   MOCK_METHOD0(GetPowerPolicyController, PowerPolicyController*(void));
   MOCK_METHOD0(GetSessionManagerClient, SessionManagerClient*(void));
   MOCK_METHOD0(GetSMSClient, SMSClient*(void));
+  MOCK_METHOD0(GetSystemClockClient, SystemClockClient*(void));
   MOCK_METHOD0(GetUpdateEngineClient, UpdateEngineClient*(void));
   MOCK_METHOD0(GetIBusClient, IBusClient*(void));
   MOCK_METHOD0(GetIBusConfigClient, IBusConfigClient*(void));
@@ -159,6 +161,9 @@ class MockDBusThreadManager : public DBusThreadManager {
   MockSMSClient* mock_sms_client() {
     return mock_sms_client_.get();
   }
+  MockSystemClockClient* mock_system_clock_client() {
+    return mock_system_clock_client_.get();
+  }
   MockUpdateEngineClient* mock_update_engine_client() {
     return mock_update_engine_client_.get();
   }
@@ -190,6 +195,7 @@ class MockDBusThreadManager : public DBusThreadManager {
   scoped_ptr<MockPowerManagerClient> mock_power_manager_client_;
   scoped_ptr<MockSessionManagerClient> mock_session_manager_client_;
   scoped_ptr<MockSMSClient> mock_sms_client_;
+  scoped_ptr<MockSystemClockClient> mock_system_clock_client_;
   scoped_ptr<MockUpdateEngineClient> mock_update_engine_client_;
   scoped_ptr<PowerPolicyController> power_policy_controller_;