Remove SurfaceSequence from mus client code.

services/ui/ws/server_window_compositor_frame_sink_manager.cc

Index: services/ui/ws/server_window_compositor_frame_sink_manager.cc
diff --git a/services/ui/ws/server_window_compositor_frame_sink_manager.cc b/services/ui/ws/server_window_compositor_frame_sink_manager.cc
index 97a2abac42b2e660af2eda50ff80b2315e81cfe8..0a292250a458bcfabb9581132628584590b45112 100644
--- a/services/ui/ws/server_window_compositor_frame_sink_manager.cc
+++ b/services/ui/ws/server_window_compositor_frame_sink_manager.cc
@@ -71,8 +71,6 @@ void ServerWindowCompositorFrameSinkManager::CreateCompositorFrameSink(
         ->AddChildFrameSinkId(mojom::CompositorFrameSinkType::DEFAULT,
                               frame_sink_id);
   }
-
-  data.surface_sequence_generator.set_frame_sink_id(frame_sink_id);
 }
 
 void ServerWindowCompositorFrameSinkManager::AddChildFrameSinkId(
@@ -109,16 +107,6 @@ bool ServerWindowCompositorFrameSinkManager::HasAnyCompositorFrameSink() const {
          HasCompositorFrameSinkOfType(mojom::CompositorFrameSinkType::UNDERLAY);
 }
 
-cc::SurfaceSequence
-ServerWindowCompositorFrameSinkManager::CreateSurfaceSequence(
-    mojom::CompositorFrameSinkType type) {
-  cc::FrameSinkId frame_sink_id(WindowIdToTransportId(window_->id()),
-                                static_cast<uint32_t>(type));
-  CompositorFrameSinkData& data = type_to_compositor_frame_sink_map_[type];
-  data.surface_sequence_generator.set_frame_sink_id(frame_sink_id);
-  return data.surface_sequence_generator.CreateSurfaceSequence();
-}
-
 gfx::Size ServerWindowCompositorFrameSinkManager::GetLatestFrameSize(
     mojom::CompositorFrameSinkType type) const {
   auto it = type_to_compositor_frame_sink_map_.find(type);