Move display_compositor impls to components/mus/gpu

components/mus/gpu/display_compositor/BUILD.gn

+# Copyright 2016 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.
+
+import("//build/config/ui.gni")
+
+source_set("display_compositor") {
+  sources = [
+    "compositor_frame_sink_delegate.h",
+    "compositor_frame_sink_factory_impl.cc",
+    "compositor_frame_sink_factory_impl.h",
+    "compositor_frame_sink_impl.cc",
+    "compositor_frame_sink_impl.h",
+    "display_compositor_impl.cc",
+    "display_compositor_impl.h",
+    "display_impl.cc",
+    "display_impl.h",
+  ]
+
+  deps = [
+    "//base",
+    "//cc",
+    "//cc/surfaces",
+    "//cc/surfaces:surface_id",
+    "//components/mus/public/cpp/surfaces",
+    "//components/mus/public/interfaces/gpu:interfaces",
+
+    # TODO(fsamuel): Remove this dependency.
+    "//components/mus/surfaces",
+  ]
+}