Remove using namespace in net/quic/quic_stream_sequencer.h

net/quic/quic_data_stream.h

Index: net/quic/quic_data_stream.h
diff --git a/net/quic/quic_data_stream.h b/net/quic/quic_data_stream.h
index 0337b30ea88a1c07dadd002d118d01819f82a5c4..965a5aeabfa384469a90db5bb05f7205279c9e3b 100644
--- a/net/quic/quic_data_stream.h
+++ b/net/quic/quic_data_stream.h
@@ -12,6 +12,7 @@
 #include <sys/types.h>
 
 #include <list>
+#include <string>
 
 #include "base/basictypes.h"
 #include "base/strings/string_piece.h"
@@ -133,7 +134,7 @@ class NET_EXPORT_PRIVATE QuicDataStream : public ReliableQuicStream {
   QuicPriority priority_;
   // Contains a copy of the decompressed headers until they are consumed
   // via ProcessData or Readv.
-  string decompressed_headers_;
+  std::string decompressed_headers_;
   // True if an error was encountered during decompression.
   bool decompression_failed_;
   // True if the priority has been read, false otherwise.