[Chromoting] Use ProcessStatsSender in host process

remoting/protocol/process_stats_dispatcher.cc

+// Copyright 2016 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 "remoting/protocol/process_stats_dispatcher.h"
+
+#include "remoting/base/compound_buffer.h"
+#include "remoting/base/constants.h"
+#include "remoting/proto/process_stats.pb.h"
+
+namespace remoting {
+namespace protocol {
+
+ProcessStatsDispatcher::ProcessStatsDispatcher()
+    : ChannelDispatcherBase(kProcessStatsChannelName) {}
+
+ProcessStatsDispatcher::~ProcessStatsDispatcher() = default;
+
+void ProcessStatsDispatcher::OnProcessStats(
+    const AggregatedProcessResourceUsage& usage) {
+  // MessagePipe::Send() receives a raw pointer without const-qualifier, so
+  // making a copy can avoid const_cast.
+  AggregatedProcessResourceUsage copy = usage;
+  message_pipe()->Send(&copy, base::Closure());
+}
+
+void ProcessStatsDispatcher::OnIncomingMessage(
+    std::unique_ptr<remoting::CompoundBuffer> message) {
+  // Do not expect to receive message from this channel.
+}
+
+}  // namespace protocol
+}  // namespace remoting