Remove LatencyInfo::sequence_number. (May break metrics).

ui/latency/mojo/latency_info_struct_traits.cc

Index: ui/latency/mojo/latency_info_struct_traits.cc
diff --git a/ui/latency/mojo/latency_info_struct_traits.cc b/ui/latency/mojo/latency_info_struct_traits.cc
index 955de5fdf406bc828d921a5c6683dda3395c702e..4563eaf6484e19286d4587fef2dc4b03e4185ade 100644
--- a/ui/latency/mojo/latency_info_struct_traits.cc
+++ b/ui/latency/mojo/latency_info_struct_traits.cc
@@ -188,13 +188,6 @@ ui::SourceEventType MojoSourceEventTypeToUI(ui::mojom::SourceEventType type) {
 
 }  // namespace
 
-// static
-int64_t StructTraits<ui::mojom::LatencyComponentDataView,
-                     ui::LatencyInfo::LatencyComponent>::
-    sequence_number(const ui::LatencyInfo::LatencyComponent& component) {
-  return component.sequence_number;
-}
-
 // static
 base::TimeTicks StructTraits<ui::mojom::LatencyComponentDataView,
                              ui::LatencyInfo::LatencyComponent>::
@@ -234,7 +227,6 @@ bool StructTraits<ui::mojom::LatencyComponentDataView,
     return false;
   if (!data.ReadLastEventTime(&out->last_event_time))
     return false;
-  out->sequence_number = data.sequence_number();
   out->event_count = data.event_count();
   return true;
 }