Remove using namespace in net/quic/quic_stream_sequencer.h

net/quic/quic_session.cc

Index: net/quic/quic_session.cc
diff --git a/net/quic/quic_session.cc b/net/quic/quic_session.cc
index d6af16e78964569b0f6f9e1a44814889aac010c8..525cd236c055b0284b110ea120a13fb8375a371f 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -382,7 +382,8 @@ void QuicSession::SendRstStream(QuicStreamId id,
   CloseStreamInner(id, true);
 }
 
-void QuicSession::SendGoAway(QuicErrorCode error_code, const string& reason) {
+void QuicSession::SendGoAway(QuicErrorCode error_code,
+                             const std::string& reason) {
   if (goaway_sent_) {
     return;
   }
@@ -429,7 +430,7 @@ void QuicSession::CloseStreamInner(QuicStreamId stream_id,
 
 void QuicSession::UpdateFlowControlOnFinalReceivedByteOffset(
     QuicStreamId stream_id, QuicStreamOffset final_byte_offset) {
-  map<QuicStreamId, QuicStreamOffset>::iterator it =
+  std::map<QuicStreamId, QuicStreamOffset>::iterator it =
       locally_closed_streams_highest_offset_.find(stream_id);
   if (it == locally_closed_streams_highest_offset_.end()) {
     return;