Automated g4 rollback of changelist 455242321.

*** Reason for rollback ***

Caused failure of //ads/spam/lib/sql:user_agent_test unit test

*** Original change description ***

[UACH] Update synthetic UA library with the following changes

1. Support for Edge
2. Add support for Wow64 client hint
3. Incorporate changes to platform version client hint
4. Limit synthetic UA creation to Chrome 100 and above

go/new-ch-and-platform-version-change documents the rationale for the changes.

***

PiperOrigin-RevId: 455277914
diff --git a/build/source_list.bzl b/build/source_list.bzl
index 551b30a..aaf08ad 100644
--- a/build/source_list.bzl
+++ b/build/source_list.bzl
@@ -234,8 +234,6 @@
     "quic/core/http/spdy_utils.h",
     "quic/core/http/web_transport_http3.h",
     "quic/core/http/web_transport_stream_adapter.h",
-    "quic/core/io/quic_default_event_loop.h",
-    "quic/core/io/quic_event_loop.h",
     "quic/core/legacy_quic_stream_id_manager.h",
     "quic/core/packet_number_indexed_queue.h",
     "quic/core/proto/cached_network_parameters_proto.h",
@@ -571,7 +569,6 @@
     "quic/core/http/spdy_utils.cc",
     "quic/core/http/web_transport_http3.cc",
     "quic/core/http/web_transport_stream_adapter.cc",
-    "quic/core/io/quic_default_event_loop.cc",
     "quic/core/legacy_quic_stream_id_manager.cc",
     "quic/core/qpack/qpack_blocking_manager.cc",
     "quic/core/qpack/qpack_decoded_headers_accumulator.cc",
@@ -935,6 +932,8 @@
     "quic/core/batch_writer/quic_batch_writer_test.h",
     "quic/core/batch_writer/quic_gso_batch_writer.h",
     "quic/core/batch_writer/quic_sendmmsg_batch_writer.h",
+    "quic/core/io/quic_default_event_loop.h",
+    "quic/core/io/quic_event_loop.h",
     "quic/core/quic_default_packet_writer.h",
     "quic/core/quic_epoll_alarm_factory.h",
     "quic/core/quic_epoll_clock.h",
@@ -965,6 +964,7 @@
     "quic/core/batch_writer/quic_batch_writer_buffer.cc",
     "quic/core/batch_writer/quic_gso_batch_writer.cc",
     "quic/core/batch_writer/quic_sendmmsg_batch_writer.cc",
+    "quic/core/io/quic_default_event_loop.cc",
     "quic/core/quic_default_packet_writer.cc",
     "quic/core/quic_epoll_alarm_factory.cc",
     "quic/core/quic_epoll_clock.cc",
@@ -1153,7 +1153,6 @@
     "quic/core/http/spdy_server_push_utils_test.cc",
     "quic/core/http/spdy_utils_test.cc",
     "quic/core/http/web_transport_http3_test.cc",
-    "quic/core/io/quic_default_event_loop_test.cc",
     "quic/core/legacy_quic_stream_id_manager_test.cc",
     "quic/core/packet_number_indexed_queue_test.cc",
     "quic/core/qpack/qpack_blocking_manager_test.cc",
@@ -1279,6 +1278,7 @@
     "quic/core/http/quic_spdy_client_session_test.cc",
     "quic/core/http/quic_spdy_client_stream_test.cc",
     "quic/core/http/quic_spdy_server_stream_base_test.cc",
+    "quic/core/io/quic_default_event_loop_test.cc",
     "quic/core/quic_epoll_alarm_factory_test.cc",
     "quic/core/quic_epoll_clock_test.cc",
     "quic/core/quic_epoll_connection_helper_test.cc",