Added and implemented URLRequest::GetTotalSentBytes.

net/http/http_transaction_test_util.h

Index: net/http/http_transaction_test_util.h
diff --git a/net/http/http_transaction_test_util.h b/net/http/http_transaction_test_util.h
index 52b38e845decee9b81b9ba93d0b43645f09b09d7..0c311df4cde55c3e646206f104f9e57673039611 100644
--- a/net/http/http_transaction_test_util.h
+++ b/net/http/http_transaction_test_util.h
@@ -7,6 +7,8 @@
 
 #include "net/http/http_transaction.h"
 
+#include <stdint.h>
+
 #include <string>
 
 #include "base/callback.h"
@@ -197,6 +199,8 @@ class MockNetworkTransaction
 
   int64 GetTotalReceivedBytes() const override;
 
+  int64_t GetTotalSentBytes() const override;
+
   void DoneReading() override;
 
   const HttpResponseInfo* GetResponseInfo() const override;
@@ -230,6 +234,13 @@ class MockNetworkTransaction
   RequestPriority priority() const { return priority_; }
   const HttpRequestInfo* request() const { return request_; }
 
+  // Bogus value that will be returned by GetTotalReceivedBytes() if the
+  // MockNetworkTransaction was started.
+  static const int64_t kTotalReceivedBytes;
+  // Bogus value that will be returned by GetTotalSentBytes() if the
+  // MockNetworkTransaction was started.
+  static const int64_t kTotalSentBytes;
+
  private:
   int StartInternal(const HttpRequestInfo* request,
                     const CompletionCallback& callback,
@@ -246,6 +257,7 @@ class MockNetworkTransaction
   CreateHelper* websocket_handshake_stream_create_helper_;
   base::WeakPtr<MockNetworkLayer> transaction_factory_;
   int64 received_bytes_;
+  int64_t sent_bytes_;
 
   // NetLog ID of the fake / non-existent underlying socket used by the
   // connection. Requires Start() be passed a BoundNetLog with a real NetLog to