message: Change the default value of bandwidth_backoff_factor to 1.0.
  The default backoff behavior of loss based 2.0 should remain the same.
  Cr-Commit-Position: refs/heads/main@{#36258}
diff: @@ -267,7 +267,7 @@ absl::optional<LossBasedBweV2::Config> LossBasedBweV2::CreateConfig(
  FieldTrialParameter<double> temporal_weight_factor("TemporalWeightFactor",
  0.99);
  FieldTrialParameter<double> bandwidth_backoff_lower_bound_factor(
  - "BwBackoffLowerBoundFactor", 0.85);
  + "BwBackoffLowerBoundFactor", 1.0);
  FieldTrialParameter<bool> trendline_integration_enabled(
  "TrendlineIntegrationEnabled", false);
  FieldTrialParameter<double> delay_based_limit_factor("DelayBasedLimitFactor",
  