Remove unused include in sequenced_worker_pool.h

services/ui/ws/server_window_compositor_frame_sink.h

Index: services/ui/ws/server_window_compositor_frame_sink.h
diff --git a/services/ui/ws/server_window_compositor_frame_sink.h b/services/ui/ws/server_window_compositor_frame_sink.h
index a448e73b46a4e5cd09d53db693f0e2c8807c0f36..d78fc0e745a9abdeb09686da200c0f930c6da956 100644
--- a/services/ui/ws/server_window_compositor_frame_sink.h
+++ b/services/ui/ws/server_window_compositor_frame_sink.h
@@ -5,9 +5,11 @@
 #ifndef SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_H_
 #define SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_H_
 
+#include <memory>
 #include <set>
 
 #include "base/macros.h"
+#include "base/memory/ref_counted.h"
 #include "cc/ipc/compositor_frame.mojom.h"
 #include "cc/ipc/mojo_compositor_frame_sink.mojom.h"
 #include "cc/output/context_provider.h"
@@ -23,6 +25,10 @@
 #include "services/ui/surfaces/surfaces_context_provider.h"
 #include "services/ui/ws/ids.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}
+
 namespace gpu {
 class GpuMemoryBufferManager;
 }