NQE Cleanup in preparation for file splitting

net/base/network_quality_estimator.h

Index: net/base/network_quality_estimator.h
diff --git a/net/base/network_quality_estimator.h b/net/base/network_quality_estimator.h
index 44054d3706a302929f900b5e92cba67744db81d6..7aecd3265f527048935a7f3c94e72727e5a1cd8d 100644
--- a/net/base/network_quality_estimator.h
+++ b/net/base/network_quality_estimator.h
@@ -608,6 +608,9 @@ class NET_EXPORT_PRIVATE NetworkQualityEstimator
   // network quality. Set to true only for tests.
   const bool allow_small_responses_;
 
+  // The factor by which the weight of an observation reduces every second.
+  const double weight_multiplier_per_second_;
+
   // Time when last connection change was observed.
   base::TimeTicks last_connection_change_;