Notify NetworkDelegate when bytes have been received over the network.

net/base/network_delegate_impl.cc

Index: net/base/network_delegate_impl.cc
diff --git a/net/base/network_delegate_impl.cc b/net/base/network_delegate_impl.cc
index 542b4d02cb9feef8c93fc85c5a075368b43ecee1..0c5d04c772fbacbd3176112b8f7fdbc803251c35 100644
--- a/net/base/network_delegate_impl.cc
+++ b/net/base/network_delegate_impl.cc
@@ -60,6 +60,9 @@ void NetworkDelegateImpl::OnRawBytesRead(const URLRequest& request,
                                          int bytes_read) {
 }
 
+void NetworkDelegateImpl::OnNetworkBytesReceived(const URLRequest& request,
+                                                 int64_t bytes_received) {}
+
 void NetworkDelegateImpl::OnCompleted(URLRequest* request, bool started) {
 }