message: Change 2g network pc audio test to more realistic network
  Cr-Commit-Position: refs/heads/master@{#28752}
diff: @@ -144,13 +144,14 @@ TEST(PCLowBandwidthAudioTest, PCGoodNetworkHighBitrate) {
  LogTestResults();
  }
  -TEST(PCLowBandwidthAudioTest, PCMobile2GNetwork) {
  +TEST(PCLowBandwidthAudioTest, PC40kbpsNetwork) {
  std::unique_ptr<NetworkEmulationManager> network_emulation_manager =
  CreateNetworkEmulationManager();
  BuiltInNetworkBehaviorConfig config;
  - config.link_capacity_kbps = 12;
  + config.link_capacity_kbps = 40;
  config.queue_length_packets = 1500;
  config.queue_delay_ms = 400;
  + config.loss_percent = 1;
  auto fixture = CreateTestFixture(
  GetMetricTestCaseName(),
  CreateTwoNetworkLinks(network_emulation_manager.get(), config),
  