Remove using namespace in net/quic/quic_stream_sequencer.h

net/quic/reliable_quic_stream.cc

Index: net/quic/reliable_quic_stream.cc
diff --git a/net/quic/reliable_quic_stream.cc b/net/quic/reliable_quic_stream.cc
index 70b6d9af0305132fd85a2ca8c425f321558dc8be..9fe82fde0e5dcabdbe60d6587eeff4414ad336e3 100644
--- a/net/quic/reliable_quic_stream.cc
+++ b/net/quic/reliable_quic_stream.cc
@@ -128,7 +128,7 @@ class ReliableQuicStream::ProxyAckNotifierDelegate
 };
 
 ReliableQuicStream::PendingData::PendingData(
-    string data_in, scoped_refptr<ProxyAckNotifierDelegate> delegate_in)
+    std::string data_in, scoped_refptr<ProxyAckNotifierDelegate> delegate_in)
     : data(data_in), delegate(delegate_in) {
 }
 
@@ -248,8 +248,8 @@ void ReliableQuicStream::CloseConnection(QuicErrorCode error) {
   session()->connection()->SendConnectionClose(error);
 }
 
-void ReliableQuicStream::CloseConnectionWithDetails(QuicErrorCode error,
-                                                    const string& details) {
+void ReliableQuicStream::CloseConnectionWithDetails(
+    QuicErrorCode error, const std::string& details) {
   session()->connection()->SendConnectionCloseWithDetails(error, details);
 }