Notify NetworkDelegate when bytes have been sent over the network.

net/url_request/url_request_test_util.h

Index: net/url_request/url_request_test_util.h
diff --git a/net/url_request/url_request_test_util.h b/net/url_request/url_request_test_util.h
index 924635ee1ac35547a68c453c965a34ea85e33877..1d6911ce9b303acdf4872a89ef5a4e029a8b5299 100644
--- a/net/url_request/url_request_test_util.h
+++ b/net/url_request/url_request_test_util.h
@@ -289,6 +289,7 @@ class TestNetworkDelegate : public NetworkDelegateImpl {
   int64_t total_network_bytes_received() const {
     return total_network_bytes_received_;
   }
+  int64_t total_network_bytes_sent() const { return total_network_bytes_sent_; }
 
   // Last observed proxy in proxy header sent callback.
   HostPortPair last_observed_proxy() {
@@ -312,6 +313,8 @@ class TestNetworkDelegate : public NetworkDelegateImpl {
                                 HttpRequestHeaders* headers) override;
   void OnSendHeaders(URLRequest* request,
                      const HttpRequestHeaders& headers) override;
+  void OnNetworkBytesSent(const URLRequest& request,
+                          int64_t bytes_sent) override;
   int OnHeadersReceived(
       URLRequest* request,
       const CompletionCallback& callback,
@@ -363,6 +366,7 @@ class TestNetworkDelegate : public NetworkDelegateImpl {
   int before_send_headers_count_;
   int headers_received_count_;
   int64_t total_network_bytes_received_;
+  int64_t total_network_bytes_sent_;
   // Last observed proxy in before proxy header sent callback.
   HostPortPair last_observed_proxy_;