Delete old NetworkQualityEstimator Cronet API

components/cronet/android/cronet_url_request_context_adapter.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/cronet/android/cronet_url_request_context_adapter.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 449 matching lines @@
     jboolean use_local_host_requests,
     jboolean use_smaller_responses) {
   PostTaskToNetworkThread(
       FROM_HERE,
       base::Bind(&CronetURLRequestContextAdapter::
                      ConfigureNetworkQualityEstimatorOnNetworkThreadForTesting,
                  base::Unretained(this), use_local_host_requests,
                  use_smaller_responses));
 }
 
-void CronetURLRequestContextAdapter::
-    EnableNetworkQualityEstimatorOnNetworkThread() {
-  DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
-  DCHECK(!network_quality_estimator_);
-  network_quality_estimator_.reset(new net::NetworkQualityEstimator(
-      std::unique_ptr<net::ExternalEstimateProvider>(),
-      std::map<std::string, std::string>()));
-  context_->set_network_quality_estimator(network_quality_estimator_.get());
-}
-
-void CronetURLRequestContextAdapter::EnableNetworkQualityEstimator(
-    JNIEnv* env,
-    const JavaParamRef<jobject>& jcaller) {
-  PostTaskToNetworkThread(
-      FROM_HERE, base::Bind(&CronetURLRequestContextAdapter::
-                                EnableNetworkQualityEstimatorOnNetworkThread,
-                            base::Unretained(this)));
-}
-
 void CronetURLRequestContextAdapter::ProvideRTTObservationsOnNetworkThread(
     bool should) {
   DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
   if (!network_quality_estimator_)
     return;
   if (should) {
     network_quality_estimator_->AddRTTObserver(this);
   } else {
     network_quality_estimator_->RemoveRTTObserver(this);
   }
@@ skipping 498 matching lines @@
     JNIEnv* env,
     const JavaParamRef<jclass>& jcaller) {
   base::StatisticsRecorder::Initialize();
   std::vector<uint8_t> data;
   if (!HistogramManager::GetInstance()->GetDeltas(&data))
     return ScopedJavaLocalRef<jbyteArray>();
   return base::android::ToJavaByteArray(env, &data[0], data.size());
 }
 
 }  // namespace cronet