Better way to implement FrameConnectedBluetoothDevicesTest

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 734 matching lines @@
       const content::RequestNavigationParams& request_params);
 
   // Returns the child FrameTreeNode if |child_frame_routing_id| is an
   // immediate child of this FrameTreeNode.  |child_frame_routing_id| is
   // considered untrusted, so the renderer process is killed if it refers to a
   // FrameTreeNode that is not a child of this node.
   FrameTreeNode* FindAndVerifyChild(int32_t child_frame_routing_id,
                                     bad_message::BadMessageReason reason);
 
   // Creates a Web Bluetooth Service owned by the frame.
-  void CreateWebBluetoothService(
+  WebBluetoothServiceImpl* CreateWebBluetoothService(
       mojo::InterfaceRequest<blink::mojom::WebBluetoothService> request);
 
   // Deletes the Web Bluetooth Service owned by the frame.
   void DeleteWebBluetoothService();
 
   // Allows tests to disable the swapout event timer to simulate bugs that
   // happen before it fires (to avoid flakiness).
   void DisableSwapOutTimerForTesting();
 
   // For now, RenderFrameHosts indirectly keep RenderViewHosts alive via a
@@ skipping 213 matching lines @@
 
   // NOTE: This must be the last member.
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_