Fix BLE register Dbus interactions.

chromeos/dbus/bluetooth_le_advertising_manager_client.cc

Index: chromeos/dbus/bluetooth_le_advertising_manager_client.cc
diff --git a/chromeos/dbus/bluetooth_le_advertising_manager_client.cc b/chromeos/dbus/bluetooth_le_advertising_manager_client.cc
index c7981757b7b4b12776c1470a69acfa9e131e9b75..a2eedf9b275b73dba6c333b13edfb0ae377068f2 100644
--- a/chromeos/dbus/bluetooth_le_advertising_manager_client.cc
+++ b/chromeos/dbus/bluetooth_le_advertising_manager_client.cc
@@ -69,11 +69,9 @@ class BluetoothAdvertisementManagerClientImpl
     writer.AppendObjectPath(advertisement_object_path);
 
     // Empty dictionary for options.
-    dbus::MessageWriter dict_entry_writer(NULL);
-    writer.OpenDictEntry(&dict_entry_writer);
-    writer.CloseContainer(&dict_entry_writer);
-
-    writer.AppendObjectPath(advertisement_object_path);
+    dbus::MessageWriter array_writer(NULL);
+    writer.OpenArray("{sv}", &array_writer);
+    writer.CloseContainer(&array_writer);
 
     DCHECK(object_manager_);
     dbus::ObjectProxy* object_proxy =