gfe-relnote: use QUIC_foo instead of ABSL_foo for mutex annotations in QUIC. Not flag protected. No behavior change.

This effectively reverts cr/266433516 and cr/266428140 (which were in turn reverts of cr/265958257 and cr/265940959) and then replaces the ABSL_ prefixes with QUIC_

PiperOrigin-RevId: 266445797
Change-Id: I369c0c929e5dc44a332635e695d526a2f91fa3f6
diff --git a/quic/test_tools/packet_dropping_test_writer.h b/quic/test_tools/packet_dropping_test_writer.h
index 92c8956..4b3e8af 100644
--- a/quic/test_tools/packet_dropping_test_writer.h
+++ b/quic/test_tools/packet_dropping_test_writer.h
@@ -161,14 +161,14 @@
   uint64_t num_calls_to_write_;
 
   QuicMutex config_mutex_;
-  int32_t fake_packet_loss_percentage_ GUARDED_BY(config_mutex_);
-  int32_t fake_drop_first_n_packets_ GUARDED_BY(config_mutex_);
-  int32_t fake_blocked_socket_percentage_ GUARDED_BY(config_mutex_);
-  int32_t fake_packet_reorder_percentage_ GUARDED_BY(config_mutex_);
-  QuicTime::Delta fake_packet_delay_ GUARDED_BY(config_mutex_);
-  QuicBandwidth fake_bandwidth_ GUARDED_BY(config_mutex_);
-  QuicByteCount buffer_size_ GUARDED_BY(config_mutex_);
-  int32_t num_consecutive_packet_lost_ GUARDED_BY(config_mutex_);
+  int32_t fake_packet_loss_percentage_ QUIC_GUARDED_BY(config_mutex_);
+  int32_t fake_drop_first_n_packets_ QUIC_GUARDED_BY(config_mutex_);
+  int32_t fake_blocked_socket_percentage_ QUIC_GUARDED_BY(config_mutex_);
+  int32_t fake_packet_reorder_percentage_ QUIC_GUARDED_BY(config_mutex_);
+  QuicTime::Delta fake_packet_delay_ QUIC_GUARDED_BY(config_mutex_);
+  QuicBandwidth fake_bandwidth_ QUIC_GUARDED_BY(config_mutex_);
+  QuicByteCount buffer_size_ QUIC_GUARDED_BY(config_mutex_);
+  int32_t num_consecutive_packet_lost_ QUIC_GUARDED_BY(config_mutex_);
 };
 
 }  // namespace test