bluetooth: connectGATT and receive WebBluetoothGATTRemoteServer from embedder.

Source/modules/bluetooth/BluetoothGATTRemoteServer.h

 // Copyright 2015 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 BluetoothGATTRemoteServer_h
 #define BluetoothGATTRemoteServer_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Heap.h"
+#include "public/platform/modules/bluetooth/WebBluetoothGATTRemoteServer.h"
 
 namespace blink {
 
+class ScriptPromiseResolver;
+
 // BluetoothGATTRemoteServer provides a way to interact with a connected bluetooth peripheral.
+//
+// Callbacks providing WebBluetoothGATTRemoteServer objects are handled by
+// CallbackPromiseAdapter templatized with this class. See this class's
+// "Interface required by CallbackPromiseAdapter" section and the
+// CallbackPromiseAdapter class comments.
 class BluetoothGATTRemoteServer final
-    : public GarbageCollected<BluetoothGATTRemoteServer>
+    : public GarbageCollectedFinalized<BluetoothGATTRemoteServer>
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
+    BluetoothGATTRemoteServer(const WebBluetoothGATTRemoteServer&);
+
+    // Interface required by CallbackPromiseAdapter:
+    typedef WebBluetoothGATTRemoteServer WebType;
+    static BluetoothGATTRemoteServer* take(ScriptPromiseResolver*, WebBluetoothGATTRemoteServer*);
+    static void dispose(WebBluetoothGATTRemoteServer*);
 
     // Interface required by Garbage Collectoin:
     DEFINE_INLINE_TRACE() { }
+
+    // IDL exposed interface:
+    bool connected() { return m_webGATT.connected; }
+
+private:
+    WebBluetoothGATTRemoteServer m_webGATT;
 };
 
 } // namespace blink
 
 #endif // BluetoothDevice_h