bluetooth: Add device list retrieval for chrome://bluetooth-internals

device/bluetooth/public/interfaces/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 
-mojom("bluetooth_mojom_bluetooth_uuid") {
+mojom("interfaces") {
   sources = [
     "uuid.mojom",
   ]
 
   use_new_wrapper_types = false
 }
+
+mojom("experimental_interfaces") {
+  sources = [
+    "adapter.mojom",
+  ]
+
+  visibility = [
+    "//device/bluetooth:mojo",
+    "//chrome/browser:*",
+    "//chrome/browser/ui:*",
+  ]
+}