QuicAlarms are now allocated out of an arena in QuicConnection

net/net.gypi

Index: net/net.gypi
diff --git a/net/net.gypi b/net/net.gypi
index e572609edbb1d480f739767144e827490dcb09e6..1cf94e13e6683dac4e4ec873034f287c9f772e3a 100644
--- a/net/net.gypi
+++ b/net/net.gypi
@@ -326,6 +326,7 @@
       'quic/quic_address_mismatch.h',
       'quic/quic_alarm.cc',
       'quic/quic_alarm.h',
+      'quic/quic_arena_scoped_ptr.h',
       'quic/quic_bandwidth.cc',
       'quic/quic_bandwidth.h',
       'quic/quic_bug_tracker.h',
@@ -366,6 +367,7 @@
       'quic/quic_multipath_received_packet_manager.h',
       'quic/quic_multipath_transmissions_map.cc',
       'quic/quic_multipath_transmissions_map.h',
+      'quic/quic_one_block_arena.h',
       'quic/quic_packet_creator.cc',
       'quic/quic_packet_creator.h',
       'quic/quic_packet_generator.cc',
@@ -1571,6 +1573,7 @@
       'quic/port_suggester_unittest.cc',
       'quic/quic_address_mismatch_test.cc',
       'quic/quic_alarm_test.cc',
+      'quic/quic_arena_scoped_ptr_test.cc',
       'quic/quic_bandwidth_test.cc',
       'quic/quic_chromium_client_session_test.cc',
       'quic/quic_chromium_client_stream_test.cc',
@@ -1592,6 +1595,7 @@
       'quic/quic_multipath_received_packet_manager_test.cc',
       'quic/quic_multipath_transmissions_map_test.cc',
       'quic/quic_network_transaction_unittest.cc',
+      'quic/quic_one_block_arena_test.cc',
       'quic/quic_packet_creator_test.cc',
       'quic/quic_packet_generator_test.cc',
       'quic/quic_protocol_test.cc',