bluetooth: connectGATT and receive WebBluetoothGATTRemoteServer from embedder.

Source/modules/bluetooth/BluetoothDevice.h

Index: Source/modules/bluetooth/BluetoothDevice.h
diff --git a/Source/modules/bluetooth/BluetoothDevice.h b/Source/modules/bluetooth/BluetoothDevice.h
index e43a55ba5be7b4420e6dd4aafb16d4f1e283de69..11fa8c54c814d405acfbfa62697fc9e37111ed45 100644
--- a/Source/modules/bluetooth/BluetoothDevice.h
+++ b/Source/modules/bluetooth/BluetoothDevice.h
@@ -12,7 +12,9 @@
 
 namespace blink {
 
+class ScriptPromise;
 class ScriptPromiseResolver;
+class ScriptState;
 
 // BluetoothDevice represents a physical bluetooth device in the DOM. See IDL.
 //
@@ -29,6 +31,8 @@ public:
 
     static BluetoothDevice* create(const WebBluetoothDevice&);
 
+    ScriptPromise connectGATT(ScriptState*);
+
     // Interface required by CallbackPromiseAdapter:
     typedef WebBluetoothDevice WebType;
     static BluetoothDevice* take(ScriptPromiseResolver*, WebBluetoothDevice*);