Standardize usage of virtual/override/final in content/renderer/

content/renderer/media/peer_connection_tracker.cc

 // Copyright (c) 2013 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 "content/renderer/media/peer_connection_tracker.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/common/media/peer_connection_tracker_messages.h"
 #include "content/renderer/media/rtc_media_constraints.h"
 #include "content/renderer/media/rtc_peer_connection_handler.h"
@@ skipping 228 matching lines @@
   result->SetString("type", report.type);
 
   return result.release();
 }
 
 class InternalStatsObserver : public webrtc::StatsObserver {
  public:
   InternalStatsObserver(int lid)
       : lid_(lid){}
 
-  virtual void OnComplete(
-      const std::vector<webrtc::StatsReport>& reports) override {
+  void OnComplete(const std::vector<webrtc::StatsReport>& reports) override {
     base::ListValue list;
 
     for (size_t i = 0; i < reports.size(); ++i) {
       base::DictionaryValue* report = GetDictValue(reports[i]);
       if (report)
         list.Append(report);
     }
 
     if (!list.empty())
       RenderThreadImpl::current()->Send(
           new PeerConnectionTrackerHost_AddStats(lid_, list));
   }
 
  protected:
-  virtual ~InternalStatsObserver() {}
+  ~InternalStatsObserver() override {}
 
  private:
   int lid_;
 };
 
 PeerConnectionTracker::PeerConnectionTracker() : next_lid_(1) {
 }
 
 PeerConnectionTracker::~PeerConnectionTracker() {
 }
@@ skipping 261 matching lines @@
     const std::string& value) {
   if (peer_connection_id_map_.find(pc_handler) == peer_connection_id_map_.end())
     return;
 
   RenderThreadImpl::current()->Send(
       new PeerConnectionTrackerHost_UpdatePeerConnection(
           peer_connection_id_map_[pc_handler], type, value));
 }
 
 }  // namespace content