[Chromoting] Add ProcessStatsDispatcher to send process stats to the client

remoting/protocol/process_stats_adapter.h

+// Copyright 2017 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 REMOTING_PROTOCOL_PROCESS_STATS_ADAPTER_H_
+#define REMOTING_PROTOCOL_PROCESS_STATS_ADAPTER_H_
+
+#include "remoting/protocol/process_stats_stub.h"
+
+namespace remoting {
+namespace protocol {
+
+class AggregatedProcessResourceUsage;
+class ClientStub;
+
+// ProcessStatsAdapter implements ProcessStatsStub and sends data through
+// ClientStub.
+class ProcessStatsAdapter : public ProcessStatsStub {
+ public:
+  // Users should ensure |client_stub| outlives this instance.
+  explicit ProcessStatsAdapter(ClientStub* client_stub);
+  ~ProcessStatsAdapter() override;
+
+  // ProcessStatsStub implementation.
+  void OnProcessStats(const AggregatedProcessResourceUsage& usage) override;
+
+ private:
+  ClientStub* const client_stub_;
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_PROCESS_STATS_ADAPTER_H_