[Chromoting] Use ProcessStatsSender in host process

remoting/protocol/fake_process_stats_stub.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.
+
+#include <vector>
+
+#include "base/callback.h"
+#include "remoting/proto/process_stats.pb.h"
+#include "remoting/protocol/process_stats_stub.h"
+
+namespace remoting {
+namespace protocol {
+
+class FakeProcessStatsStub final : public ProcessStatsStub {
+ public:
+  FakeProcessStatsStub();
+  ~FakeProcessStatsStub() override;
+
+  // ProcessStatsStub implementation.
+  void OnProcessStats(const AggregatedProcessResourceUsage& usage) override;
+
+  const std::vector<AggregatedProcessResourceUsage>& received() const;
+
+  void set_quit_closure(base::Closure quit_closure);
+  void set_expected_usage_count(size_t expected_usage_count);
+
+ private:
+  std::vector<AggregatedProcessResourceUsage> received_;
+  size_t expected_usage_count_ = 0;
+  base::Closure quit_closure_;
+};
+
+}  // namespace protocol
+}  // namespace remoting