bluetooth: connectGATT and receive WebBluetoothGATTRemoteServer from embedder.

Source/modules/bluetooth/BluetoothDevice.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 BluetoothDevice_h
 #define BluetoothDevice_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Heap.h"
 #include "public/platform/modules/bluetooth/WebBluetoothDevice.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
+class ScriptPromise;
 class ScriptPromiseResolver;
+class ScriptState;
 
 // BluetoothDevice represents a physical bluetooth device in the DOM. See IDL.
 //
 // Callbacks providing WebBluetoothDevice objects are handled by
 // CallbackPromiseAdapter templatized with this class. See this class's
 // "Interface required by CallbackPromiseAdapter" section and the
 // CallbackPromiseAdapter class comments.
 class BluetoothDevice final
     : public GarbageCollectedFinalized<BluetoothDevice>
     , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     BluetoothDevice(const WebBluetoothDevice&);
 
     static BluetoothDevice* create(const WebBluetoothDevice&);
 
+    ScriptPromise connectGATT(ScriptState*);
+
     // Interface required by CallbackPromiseAdapter:
     typedef WebBluetoothDevice WebType;
     static BluetoothDevice* take(ScriptPromiseResolver*, WebBluetoothDevice*);
     static void dispose(WebBluetoothDevice*);
 
     // Interface required by Garbage Collection:
     DEFINE_INLINE_TRACE() { }
 
     // IDL exposed interface:
     String instanceID() { return m_webDevice.instanceID; }
     String name() { return m_webDevice.name; }
     unsigned deviceClass(bool& isNull);
     String vendorIDSource();
     unsigned vendorID(bool& isNull);
     unsigned productID(bool& isNull);
     unsigned productVersion(bool& isNull);
     bool paired();
     Vector<String> uuids();
 
 private:
     WebBluetoothDevice m_webDevice;
 };
 
 } // namespace blink
 
 #endif // BluetoothDevice_h