Remove various 'using std::' statements from QUIC code and use

net/quic/core/congestion_control/pacing_sender.cc

Index: net/quic/core/congestion_control/pacing_sender.cc
diff --git a/net/quic/core/congestion_control/pacing_sender.cc b/net/quic/core/congestion_control/pacing_sender.cc
index 8ce6e8ae962e1765db84573ee33fd57fd4026c37..5cac490f9c7009959df612d38559ca8d08671afd 100644
--- a/net/quic/core/congestion_control/pacing_sender.cc
+++ b/net/quic/core/congestion_control/pacing_sender.cc
@@ -8,7 +8,6 @@
 
 #include "net/quic/core/quic_flags.h"
 
-using std::min;
 
 namespace net {
 namespace {
@@ -71,7 +70,7 @@ bool PacingSender::OnPacketSent(
     // Add more burst tokens anytime the connection is leaving quiescence, but
     // limit it to the equivalent of a single bulk write, not exceeding the
     // current CWND in packets.
-    burst_tokens_ = min(
+    burst_tokens_ = std::min(
         kInitialUnpacedBurst,
         static_cast<uint32_t>(sender_->GetCongestionWindow() / kDefaultTCPMSS));
   }
@@ -146,8 +145,8 @@ QuicBandwidth PacingSender::PacingRate(QuicByteCount bytes_in_flight) const {
   DCHECK(sender_ != nullptr);
   if (!max_pacing_rate_.IsZero()) {
     return QuicBandwidth::FromBitsPerSecond(
-        min(max_pacing_rate_.ToBitsPerSecond(),
-            sender_->PacingRate(bytes_in_flight).ToBitsPerSecond()));
+        std::min(max_pacing_rate_.ToBitsPerSecond(),
+                 sender_->PacingRate(bytes_in_flight).ToBitsPerSecond()));
   }
   return sender_->PacingRate(bytes_in_flight);
 }