Revert of Decouple GpuCompositorFrameSink from DisplayCompositor

services/ui/surfaces/gpu_offscreen_compositor_frame_sink.cc

Index: services/ui/surfaces/gpu_offscreen_compositor_frame_sink.cc
diff --git a/services/ui/surfaces/gpu_offscreen_compositor_frame_sink.cc b/services/ui/surfaces/gpu_offscreen_compositor_frame_sink.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6b6567a9383c94d78ef399e3a27264674075db71
--- /dev/null
+++ b/services/ui/surfaces/gpu_offscreen_compositor_frame_sink.cc
@@ -0,0 +1,30 @@
+// Copyright 2017 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.
+
+#include "services/ui/surfaces/gpu_offscreen_compositor_frame_sink.h"
+
+namespace ui {
+
+GpuOffscreenCompositorFrameSink::GpuOffscreenCompositorFrameSink(
+    DisplayCompositor* display_compositor,
+    const cc::FrameSinkId& frame_sink_id,
+    cc::mojom::MojoCompositorFrameSinkRequest request,
+    cc::mojom::MojoCompositorFrameSinkPrivateRequest
+        compositor_frame_sink_private_request,
+    cc::mojom::MojoCompositorFrameSinkClientPtr client)
+    : GpuCompositorFrameSink(display_compositor,
+                             frame_sink_id,
+                             nullptr,
+                             nullptr,
+                             std::move(compositor_frame_sink_private_request),
+                             std::move(client)),
+      binding_(this, std::move(request)) {
+  binding_.set_connection_error_handler(
+      base::Bind(&GpuOffscreenCompositorFrameSink::OnClientConnectionLost,
+                 base::Unretained(this)));
+}
+
+GpuOffscreenCompositorFrameSink::~GpuOffscreenCompositorFrameSink() = default;
+
+}  // namespace ui