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 12daf3348620a48e7217aaaebb8a53d61b811828..79d14dba9713858f4bd38659d36e8dc4c8302688 100644
--- a/ui/latency/mojo/latency_info_struct_traits.cc
+++ b/ui/latency/mojo/latency_info_struct_traits.cc
@@ -189,13 +189,6 @@ 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>::
     event_time(const ui::LatencyInfo::LatencyComponent& component) {
@@ -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;
 }