apmanager: Update libchrome APIs to r395517

The new libchrome has been ported from Chromium and some APIs have
changed. Make necessary changes at call sites.

Change-Id: I3c50a00168917ec943fdfe816893b91894569888
diff --git a/dbus/firewalld_dbus_proxy.h b/dbus/firewalld_dbus_proxy.h
index 11aff3b..3635992 100644
--- a/dbus/firewalld_dbus_proxy.h
+++ b/dbus/firewalld_dbus_proxy.h
@@ -20,7 +20,7 @@
 #include <string>
 
 #include <base/macros.h>
-#include <base/memory/scoped_ptr.h>
+#include <base/memory/ref_counted.h>
 #include <firewalld/dbus-proxies.h>
 
 #include "apmanager/firewall_proxy_interface.h"