Added and implemented HttpStream::GetTotalSentBytes for basic streams.

net/url_request/url_request_http_job_unittest.cc

Index: net/url_request/url_request_http_job_unittest.cc
diff --git a/net/url_request/url_request_http_job_unittest.cc b/net/url_request/url_request_http_job_unittest.cc
index d857c962fcda3c7175b07c9f9cc61a1778fc7d17..65220eb19b51b7f6f1f178ad143e45dbddfd61bb 100644
--- a/net/url_request/url_request_http_job_unittest.cc
+++ b/net/url_request/url_request_http_job_unittest.cc
@@ -4,6 +4,8 @@
 
 #include "net/url_request/url_request_http_job.h"
 
+#include <stdint.h>
+
 #include <cstddef>
 
 #include "base/compiler_specific.h"
@@ -611,6 +613,7 @@ class FakeWebSocketHandshakeStream : public WebSocketHandshakeStreamBase {
   bool IsConnectionReusable() const override { return false; }
 
   int64 GetTotalReceivedBytes() const override { return 0; }
+  int64_t GetTotalSentBytes() const override { return 0; }
 
   bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override {
     return false;