[Chromoting] Use ProcessStatsSender in host process

remoting/protocol/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.
 
 #ifndef REMOTING_PROTOCOL_PROCESS_STATS_STUB_H_
 #define REMOTING_PROTOCOL_PROCESS_STATS_STUB_H_
 
 #include "remoting/proto/process_stats.pb.h"
 
 namespace remoting {
 namespace protocol {
 
 // An interface to receive process statistic data.
 class ProcessStatsStub {
  public:
   ProcessStatsStub() = default;
   virtual ~ProcessStatsStub() = default;
 
-  virtual void OnProcessStats(
-      const protocol::AggregatedProcessResourceUsage& usage) = 0;
+  virtual void OnProcessStats(const AggregatedProcessResourceUsage& usage) = 0;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PROCESS_STATS_STUB_H_