Reland of move ignored return code from modules.

webrtc/video/call_stats.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 16 matching lines @@
 // CallStats keeps track of statistics for a call.
 class CallStats : public Module {
  public:
   friend class RtcpObserver;
 
   explicit CallStats(Clock* clock);
   ~CallStats();
 
   // Implements Module, to use the process thread.
   int64_t TimeUntilNextProcess() override;
-  int32_t Process() override;
+  void Process() override;
 
   // Returns a RtcpRttStats to register at a statistics provider. The object
   // has the same lifetime as the CallStats instance.
   RtcpRttStats* rtcp_rtt_stats() const;
 
   // Registers/deregisters a new observer to receive statistics updates.
   void RegisterStatsObserver(CallStatsObserver* observer);
   void DeregisterStatsObserver(CallStatsObserver* observer);
 
   // Helper struct keeping track of the time a rtt value is reported.
@@ skipping 31 matching lines @@
 
   // Observers getting stats reports.
   std::list<CallStatsObserver*> observers_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(CallStats);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_CALL_STATS_H_