Added and implemented URLRequest::GetTotalSentBytes.

net/http/http_network_transaction.h

Index: net/http/http_network_transaction.h
diff --git a/net/http/http_network_transaction.h b/net/http/http_network_transaction.h
index ed4597d94fae9940384f14bf957581e22efd452e..fef1a8a0f01a8518f998778e6d78b5578c3e6df3 100644
--- a/net/http/http_network_transaction.h
+++ b/net/http/http_network_transaction.h
@@ -5,6 +5,8 @@
 #ifndef NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 #define NET_HTTP_HTTP_NETWORK_TRANSACTION_H_
 
+#include <stdint.h>
+
 #include <string>
 
 #include "base/basictypes.h"
@@ -63,6 +65,7 @@ class NET_EXPORT_PRIVATE HttpNetworkTransaction
   void StopCaching() override;
   bool GetFullRequestHeaders(HttpRequestHeaders* headers) const override;
   int64 GetTotalReceivedBytes() const override;
+  int64_t GetTotalSentBytes() const override;
   void DoneReading() override;
   const HttpResponseInfo* GetResponseInfo() const override;
   LoadState GetLoadState() const override;
@@ -322,6 +325,9 @@ class NET_EXPORT_PRIVATE HttpNetworkTransaction
   // Total number of bytes received on streams for this transaction.
   int64 total_received_bytes_;
 
+  // Total number of bytes sent on streams for this transaction.

[mmenke, 2015/09/04 15:21:48]

These comments aren't accurate - it's actually the number of bytes sent for all
previous HttpStreams for this transaction (All streams other than |stream_|? 
All discarded/destroyed HttpStreams?).

[sclittle, 2015/09/04 22:03:10]

Done.

+  int64_t total_sent_bytes_;
+
   // When the transaction started / finished sending the request, including
   // the body, if present.
   base::TimeTicks send_start_time_;