Added and implemented HttpStream::GetTotalSentBytes for basic streams.

net/http/http_basic_stream.h

Index: net/http/http_basic_stream.h
diff --git a/net/http/http_basic_stream.h b/net/http/http_basic_stream.h
index 194f7ef6c206380a55d1b4ab002222d9b98eb637..10a2563d0a768c58b14c40d6d39035de875c19ef 100644
--- a/net/http/http_basic_stream.h
+++ b/net/http/http_basic_stream.h
@@ -9,6 +9,8 @@
 #ifndef NET_HTTP_HTTP_BASIC_STREAM_H_
 #define NET_HTTP_HTTP_BASIC_STREAM_H_
 
+#include <stdint.h>
+
 #include <string>
 
 #include "base/basictypes.h"
@@ -66,6 +68,8 @@ class HttpBasicStream : public HttpStream {
 
   int64 GetTotalReceivedBytes() const override;
 
+  int64_t GetTotalSentBytes() const override;
+
   bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override;
 
   void GetSSLInfo(SSLInfo* ssl_info) override;