Added dummy API class for statistics.

Telegram/SourceFiles/api/api_statistics.cpp

@@ -0,0 +1,27 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "api/api_statistics.h"
+
+#include "apiwrap.h"
+#include "data/data_peer.h"
+#include "main/main_session.h"
+
+namespace Api {
+namespace {
+} // namespace
+
+Statistics::Statistics(not_null<ApiWrap*> api)
+: _api(&api->instance()) {
+}
+
+rpl::producer<> Statistics::request(
+		not_null<PeerData*> peer) const {
+	return rpl::never<>();
+}
+
+} // namespace Api

Telegram/SourceFiles/api/api_statistics.h

@@ -0,0 +1,29 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "mtproto/sender.h"
+
+class ApiWrap;
+class PeerData;
+
+namespace Api {
+
+class Statistics final {
+public:
+	explicit Statistics(not_null<ApiWrap*> api);
+
+	[[nodiscard]] rpl::producer<> request(
+		not_null<PeerData*> peer) const;
+
+private:
+	MTP::Sender _api;
+
+};
+
+} // namespace Api