Modify DeterministicSocketData to verify that the sequence number of reads and writes start at zero…

net/socket/socket_test_util.h

Index: net/socket/socket_test_util.h
diff --git a/net/socket/socket_test_util.h b/net/socket/socket_test_util.h
index 384452c084e13960a87c090e0842bc73241b15d0..c388f5edf5fa7e984e9415167c16c4a990bea736 100644
--- a/net/socket/socket_test_util.h
+++ b/net/socket/socket_test_util.h
@@ -217,6 +217,9 @@ class StaticSocketDataProvider : public SocketDataProvider {
   virtual MockWriteResult OnWrite(const std::string& data) OVERRIDE;
   virtual void Reset() OVERRIDE;
 
+ protected:
+  void VerifyCorrectSequenceNumbers();
+
  private:
   MockRead* reads_;
   size_t read_index_;