BWE Simulation Framework: Standard plot logging

webrtc/modules/remote_bitrate_estimator/test/bwe_test_logging.cc

 /*
  *  Copyright (c) 2013 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 73 matching lines @@
     printf("%s\t", state.tag.c_str());
     va_list args;
     va_start(args, format);
     vprintf(format, args);
     va_end(args);
     printf("\n");
   }
 }
 
 void Logging::Plot(int figure, double value) {
-  Plot(figure, value, "");
+  Plot(figure, value, "-");
 }
 
 void Logging::Plot(int figure, double value, const std::string& alg_name) {
   CriticalSectionScoped cs(crit_sect_.get());
   ThreadMap::iterator it = thread_map_.find(ThreadWrapper::GetThreadId());
   assert(it != thread_map_.end());
   const State& state = it->second.stack.top();
   std::string label = state.tag + '@' + alg_name;
   std::string prefix("Available");
   if (alg_name.compare(0, prefix.length(), prefix) == 0) {
@@ skipping 136 matching lines @@
     // Update time so that next log/plot will use the latest time seen so far
     // in this call tree.
     state->timestamp_ms = std::max(state->timestamp_ms, newest_timestamp_ms);
   }
 }
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc
 
 #endif  // BWE_TEST_LOGGING_COMPILE_TIME_ENABLE