Revert of Expose RTT and throughput estimates from Cronet

components/cronet/android/cronet_url_request_context_adapter.h

Index: components/cronet/android/cronet_url_request_context_adapter.h
diff --git a/components/cronet/android/cronet_url_request_context_adapter.h b/components/cronet/android/cronet_url_request_context_adapter.h
index d880b76d79ef369052e8bbdd679079801ea5ac3f..647cc0630742fe8db1f70a26a5e4355b8b664c15 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.h
+++ b/components/cronet/android/cronet_url_request_context_adapter.h
@@ -52,7 +52,6 @@
 // Adapter between Java CronetUrlRequestContext and net::URLRequestContext.
 class CronetURLRequestContextAdapter
     : public net::NetworkQualityEstimator::EffectiveConnectionTypeObserver,
-      public net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver,
       public net::NetworkQualityEstimator::RTTObserver,
       public net::NetworkQualityEstimator::ThroughputObserver {
  public:
@@ -167,13 +166,6 @@
   void OnEffectiveConnectionTypeChanged(
       net::EffectiveConnectionType effective_connection_type) override;
 
-  // net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver
-  // implementation.
-  void OnRTTOrThroughputEstimatesComputed(
-      base::TimeDelta http_rtt,
-      base::TimeDelta transport_rtt,
-      int32_t downstream_throughput_kbps) override;
-
   // net::NetworkQualityEstimator::RTTObserver implementation.
   void OnRTTObservation(int32_t rtt_ms,
                         const base::TimeTicks& timestamp,