mash: Allow a subset of D-Bus clients to be created in DBusThreadManager

ash/common/system/chromeos/system_clock_observer.cc

Index: ash/common/system/chromeos/system_clock_observer.cc
diff --git a/ash/common/system/chromeos/system_clock_observer.cc b/ash/common/system/chromeos/system_clock_observer.cc
index 984c6ca11aa406935bf27589163994dad492d91e..490fdca26bcad1f1dfa7264842ead31d745e40b4 100644
--- a/ash/common/system/chromeos/system_clock_observer.cc
+++ b/ash/common/system/chromeos/system_clock_observer.cc
@@ -4,22 +4,23 @@
 
 #include "ash/common/system/chromeos/system_clock_observer.h"
 
+#include "ash/common/dbus_thread_manager_ash.h"
 #include "ash/common/system/tray/system_tray_notifier.h"
 #include "ash/common/wm_shell.h"
-#include "chromeos/dbus/dbus_thread_manager.h"
+// #include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/dbus/system_clock_client.h"
 
 namespace ash {
 
 SystemClockObserver::SystemClockObserver() {
-  chromeos::DBusThreadManager::Get()->GetSystemClockClient()->AddObserver(this);
+  DBusThreadManagerAsh::Get()->GetSystemClockClient()->AddObserver(this);
   chromeos::system::TimezoneSettings::GetInstance()->AddObserver(this);
   can_set_time_ =
-      chromeos::DBusThreadManager::Get()->GetSystemClockClient()->CanSetTime();
+      DBusThreadManagerAsh::Get()->GetSystemClockClient()->CanSetTime();
 }
 
 SystemClockObserver::~SystemClockObserver() {
-  chromeos::DBusThreadManager::Get()->GetSystemClockClient()->RemoveObserver(
-      this);
+  DBusThreadManagerAsh::Get()->GetSystemClockClient()->RemoveObserver(this);
   chromeos::system::TimezoneSettings::GetInstance()->RemoveObserver(this);
 }