Notify NetworkDelegate when bytes have been sent over the network.

net/url_request/url_request_test_util.cc

Index: net/url_request/url_request_test_util.cc
diff --git a/net/url_request/url_request_test_util.cc b/net/url_request/url_request_test_util.cc
index af8d139e64b2738aa08996e88cf80720fc43d720..94086df2a62a1cd671ec7ad5677f3345346a4388 100644
--- a/net/url_request/url_request_test_util.cc
+++ b/net/url_request/url_request_test_util.cc
@@ -330,6 +330,7 @@ TestNetworkDelegate::TestNetworkDelegate()
       before_send_headers_count_(0),
       headers_received_count_(0),
       total_network_bytes_received_(0),
+      total_network_bytes_sent_(0),
       has_load_timing_info_before_redirect_(false),
       has_load_timing_info_before_auth_(false),
       can_access_files_(true),
@@ -512,6 +513,12 @@ void TestNetworkDelegate::OnNetworkBytesReceived(const URLRequest& request,
   total_network_bytes_received_ += bytes_received;
 }
 
+void TestNetworkDelegate::OnNetworkBytesSent(const URLRequest& request,
+                                             int64_t bytes_sent) {
+  event_order_[request.identifier()] += "OnNetworkBytesSent\n";
+  total_network_bytes_sent_ += bytes_sent;
+}
+
 void TestNetworkDelegate::OnCompleted(URLRequest* request, bool started) {
   int req_id = request->identifier();
   InitRequestStatesIfNew(req_id);