Notify NetworkDelegate when bytes have been received over the network.

net/base/network_delegate.cc

Index: net/base/network_delegate.cc
diff --git a/net/base/network_delegate.cc b/net/base/network_delegate.cc
index 40eb66545ed2d42b0c572c44f6dc095928f28d8a..9c8a689930d29e74dd4007b9cfce6e5a49fc65d6 100644
--- a/net/base/network_delegate.cc
+++ b/net/base/network_delegate.cc
@@ -95,6 +95,13 @@ void NetworkDelegate::NotifyRawBytesRead(const URLRequest& request,
   OnRawBytesRead(request, bytes_read);
 }
 
+void NetworkDelegate::NotifyNetworkBytesReceived(const URLRequest& request,
+                                                 int64_t bytes_received) {
+  DCHECK(CalledOnValidThread());
+  DCHECK_GT(bytes_received, 0);
+  OnNetworkBytesReceived(request, bytes_received);
+}
+
 void NetworkDelegate::NotifyBeforeRedirect(URLRequest* request,
                                            const GURL& new_location) {
   DCHECK(CalledOnValidThread());