bluetooth: Refactor Bluetooth and Stub out BluetoothInteraction.

Source/modules/bluetooth/BluetoothDiscovery.h

 // Copyright 2014 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 BluetoothDiscovery_h
 #define BluetoothDiscovery_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
-#include "platform/heap/Visitor.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
 class ScriptPromise;
 class ScriptState;
 
 class BluetoothDiscovery
     : public GarbageCollected<BluetoothDiscovery>
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     ScriptPromise requestDevice(ScriptState*);
 
     DEFINE_INLINE_TRACE() { }
 };
 
 } // namespace blink
 
 #endif // BluetoothDiscovery_h