bluetooth: Use BluetoothUUID instead of string when sending uuids

device/bluetooth/public/interfaces/bluetooth_uuid.mojom

Index: device/bluetooth/public/interfaces/bluetooth_uuid.mojom
diff --git a/gpu/ipc/common/mailbox_holder.mojom b/device/bluetooth/public/interfaces/bluetooth_uuid.mojom
similarity index 73%
copy from gpu/ipc/common/mailbox_holder.mojom
copy to device/bluetooth/public/interfaces/bluetooth_uuid.mojom
index 773f40256ca7e68da1df733ea6c4c6bd7eaa93d4..94ac31fcf3a8961333938e9204a6ff5901769e21 100644
--- a/gpu/ipc/common/mailbox_holder.mojom
+++ b/device/bluetooth/public/interfaces/bluetooth_uuid.mojom
@@ -2,7 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module gpu.mojom;
+module device.mojom;
 
-[Native]
-struct MailboxHolder;
+struct BluetoothUUID {
+  string uuid;
+};