Remove unused include in sequenced_worker_pool.h

services/ui/ws/server_window_compositor_frame_sink.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #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"
 #include "cc/surfaces/display.h"
 #include "cc/surfaces/display_client.h"
 #include "cc/surfaces/frame_sink_id.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
 #include "services/ui/surfaces/surfaces_context_provider.h"
 #include "services/ui/ws/ids.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}
+
 namespace gpu {
 class GpuMemoryBufferManager;
 }
 
 namespace ui {
 
 class DisplayCompositor;
 
 namespace ws {
 
@@ skipping 61 matching lines @@
   mojo::Binding<MojoCompositorFrameSink> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerWindowCompositorFrameSink);
 };
 
 }  // namespace ws
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_H_