Added and implemented URLRequest::GetTotalSentBytes.

chrome/browser/devtools/devtools_network_transaction.cc

Index: chrome/browser/devtools/devtools_network_transaction.cc
diff --git a/chrome/browser/devtools/devtools_network_transaction.cc b/chrome/browser/devtools/devtools_network_transaction.cc
index bd9b8e748cd90e7616ef7473e1f21938032d179a..12881cb097f930b812b32b2092ab53003db4adf4 100644
--- a/chrome/browser/devtools/devtools_network_transaction.cc
+++ b/chrome/browser/devtools/devtools_network_transaction.cc
@@ -215,6 +215,10 @@ int64 DevToolsNetworkTransaction::GetTotalReceivedBytes() const {
   return network_transaction_->GetTotalReceivedBytes();
 }
 
+int64_t DevToolsNetworkTransaction::GetTotalSentBytes() const {
+  return network_transaction_->GetTotalSentBytes();
+}
+
 void DevToolsNetworkTransaction::DoneReading() {
   network_transaction_->DoneReading();
 }