arc: enable Android tracing in verified-boot mode

chromeos/dbus/dbus_clients_browser.h

Index: chromeos/dbus/dbus_clients_browser.h
diff --git a/chromeos/dbus/dbus_clients_browser.h b/chromeos/dbus/dbus_clients_browser.h
index 380bdec4fbd9585943913088d4c13760a2cdff5d..f15733fa0bdf3a7370b08551650f878bb9d77d26 100644
--- a/chromeos/dbus/dbus_clients_browser.h
+++ b/chromeos/dbus/dbus_clients_browser.h
@@ -17,6 +17,7 @@ class Bus;
 namespace chromeos {
 
 class ArcObbMounterClient;
+class ArcTraceAgent;
 class AuthPolicyClient;
 class CrosDisksClient;
 class DebugDaemonClient;
@@ -42,6 +43,7 @@ class CHROMEOS_EXPORT DBusClientsBrowser {
   friend class DBusThreadManagerSetter;
 
   std::unique_ptr<ArcObbMounterClient> arc_obb_mounter_client_;
+  std::unique_ptr<ArcTraceAgent> arc_trace_agent_;
   std::unique_ptr<AuthPolicyClient> auth_policy_client_;
   std::unique_ptr<CrosDisksClient> cros_disks_client_;
   std::unique_ptr<DebugDaemonClient> debug_daemon_client_;