Various formatting cleanups to net/quic/core/frames

net/quic/core/congestion_control/tcp_cubic_sender_base.cc

Index: net/quic/core/congestion_control/tcp_cubic_sender_base.cc
diff --git a/net/quic/core/congestion_control/tcp_cubic_sender_base.cc b/net/quic/core/congestion_control/tcp_cubic_sender_base.cc
index 3a74855e90427e7e345b64de03c3ccff33692e4c..069bb161c86f3380049a8a382c6709072f61f98c 100644
--- a/net/quic/core/congestion_control/tcp_cubic_sender_base.cc
+++ b/net/quic/core/congestion_control/tcp_cubic_sender_base.cc
@@ -5,16 +5,12 @@
 #include "net/quic/core/congestion_control/tcp_cubic_sender_base.h"
 
 #include <algorithm>
-#include <string>
 
-#include "base/metrics/histogram_macros.h"
 #include "net/quic/core/congestion_control/prr_sender.h"
 #include "net/quic/core/congestion_control/rtt_stats.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/core/proto/cached_network_parameters.pb.h"
 #include "net/quic/core/quic_bug_tracker.h"
-#include "net/quic/core/quic_flags.h"
-
 
 namespace net {