import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

widget/nsDragServiceProxy.h

@@ -0,0 +1,26 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef NSDRAGSERVICEPROXY_H
+#define NSDRAGSERVICEPROXY_H
+
+#include "nsBaseDragService.h"
+
+class nsDragServiceProxy : public nsBaseDragService
+{
+public:
+  nsDragServiceProxy();
+
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // nsBaseDragService
+  virtual nsresult InvokeDragSessionImpl(nsIArray* anArrayTransferables,
+                                         nsIScriptableRegion* aRegion,
+                                         uint32_t aActionType) override;
+private:
+  virtual ~nsDragServiceProxy();
+};
+
+#endif // NSDRAGSERVICEPROXY_H