Clarify some function names in visualization tool.

webrtc/tools/event_log_visualizer/main.cc

 /*
  *  Copyright (c) 2016 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 131 matching lines @@
           collection->AppendNewPlot());
     }
     if (FLAGS_outgoing) {
       analyzer.CreateStreamBitrateGraph(
           webrtc::PacketDirection::kOutgoingPacket,
           collection->AppendNewPlot());
     }
   }
 
   if (FLAGS_plot_all || FLAGS_plot_bwe) {
-    analyzer.CreateBweGraph(collection->AppendNewPlot());
+    analyzer.CreateBweSimulationGraph(collection->AppendNewPlot());
   }
 
   if (FLAGS_plot_all || FLAGS_plot_network_delay_feedback) {
-    analyzer.CreateNetworkDelayFeebackGraph(collection->AppendNewPlot());
+    analyzer.CreateNetworkDelayFeedbackGraph(collection->AppendNewPlot());
   }
 
   collection->Draw();
 
   return 0;
 }