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

gpu/ipc/service/image_transport_surface_overlay_mac.mm

Index: gpu/ipc/service/image_transport_surface_overlay_mac.mm
diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.mm b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
index 1c75718e5a7d4830ecc10c27936cd5c7b3b68c49..d9cc84087737167f65f51be6857a40f844106cc0 100644
--- a/gpu/ipc/service/image_transport_surface_overlay_mac.mm
+++ b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
@@ -255,10 +255,10 @@ gfx::SwapResult ImageTransportSurfaceOverlayMac::SwapBuffersInternal(
   // Update the latency info to reflect the swap time.
   for (auto& latency_info : latency_info_) {
     latency_info.AddLatencyNumberWithTimestamp(
-        ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0, 0,
+        ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0,
         after_flush_before_commit_time, 1);
     latency_info.AddLatencyNumberWithTimestamp(
-        ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0,
+        ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0,
         after_flush_before_commit_time, 1);
   }