Add functionality for embedders to configure NQE

components/cronet/android/cronet_url_request_context_adapter.h

 // 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.
 
 #ifndef COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_
 #define COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_
 
 #include <jni.h>
 #include <stdint.h>
 
@@ skipping 194 matching lines @@
 
   // Stops NetLog logging on the network thread.
   void StopNetLogOnNetworkThread();
 
   // Callback for StopObserving() that unblocks the Java ConditionVariable and
   // signals that it is safe to access the NetLog files.
   void StopNetLogCompleted();
 
   std::unique_ptr<base::DictionaryValue> GetNetLogInfo() const;
 
+  // Initializes Network Quality Estimator (NQE) prefs manager on network
+  // thread.
+  void InitializeNQEPrefsOnNetworkThread() const;
+
   // Network thread is owned by |this|, but is destroyed from java thread.
   base::Thread* network_thread_;
 
   // File thread should be destroyed last.
   std::unique_ptr<base::Thread> file_thread_;
 
   std::unique_ptr<net::FileNetLogObserver> net_log_file_observer_;
 
   // |pref_service_| should outlive the HttpServerPropertiesManager owned by
   // |context_| and the HostCachePersistenceManager.
@@ skipping 33 matching lines @@
 
   // Java object that owns this CronetURLRequestContextAdapter.
   base::android::ScopedJavaGlobalRef<jobject> jcronet_url_request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(CronetURLRequestContextAdapter);
 };
 
 }  // namespace cronet
 
 #endif  // COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_