Fix header guards in //net.

net/quic/core/quic_sustained_bandwidth_recorder.h

Index: net/quic/core/quic_sustained_bandwidth_recorder.h
diff --git a/net/quic/core/quic_sustained_bandwidth_recorder.h b/net/quic/core/quic_sustained_bandwidth_recorder.h
index ec25dd421718bf1a6b4d6cb03493cf22383d10c0..fcc92c551ee470106d6fb55b93b2ff7cc9a67593 100644
--- a/net/quic/core/quic_sustained_bandwidth_recorder.h
+++ b/net/quic/core/quic_sustained_bandwidth_recorder.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef NET_QUIC_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
-#define NET_QUIC_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
+#ifndef NET_QUIC_CORE_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
+#define NET_QUIC_CORE_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
 
 #include <stdint.h>
 
@@ -91,4 +91,4 @@ class QUIC_EXPORT_PRIVATE QuicSustainedBandwidthRecorder {
 
 }  // namespace net
 
-#endif  // NET_QUIC_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
+#endif  // NET_QUIC_CORE_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_