Notify NetworkDelegate when bytes have been received over the network.

components/cronet/android/cronet_url_request_context_adapter.cc

Index: components/cronet/android/cronet_url_request_context_adapter.cc
diff --git a/components/cronet/android/cronet_url_request_context_adapter.cc b/components/cronet/android/cronet_url_request_context_adapter.cc
index cfb590b463ccf59a0a6fc8df726d02ad01f7d5ce..6621e091c59ab8197d61394093a5f4e9dca2cdff 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.cc
+++ b/components/cronet/android/cronet_url_request_context_adapter.cc
@@ -77,9 +77,6 @@ class BasicNetworkDelegate : public net::NetworkDelegateImpl {
 
   void OnResponseStarted(net::URLRequest* request) override {}
 
-  void OnRawBytesRead(const net::URLRequest& request, int bytes_read) override {
-  }
-
   void OnCompleted(net::URLRequest* request, bool started) override {}
 
   void OnURLRequestDestroyed(net::URLRequest* request) override {}