bluetooth: Extend navigator.bluetooth IDL to include Bluetooth interface.

Source/modules/bluetooth/NavigatorBluetooth.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 NavigatorBluetooth_h
 #define NavigatorBluetooth_h
 
+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
 namespace blink {
 
-class NavigatorBluetooth  {
+class Bluetooth;
+class Navigator;
+
+class NavigatorBluetooth FINAL
+    : public NoBaseWillBeGarbageCollected<NavigatorBluetooth>
+    , public WillBeHeapSupplement<Navigator> {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorBluetooth);
+    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(NavigatorBluetooth);
 public:
-    virtual ~NavigatorBluetooth() { }
+    static NavigatorBluetooth& from(Navigator&);
+
+    static Bluetooth* bluetooth(Navigator&);
+    Bluetooth* bluetooth();
+
+    void trace(Visitor*);
+
+private:
+    NavigatorBluetooth();
+    static const char* supplementName();
+
+    PersistentWillBeMember<Bluetooth> m_bluetooth;
 };
 
 } // namespace blink
 
 #endif // NavigatorBluetooth_h