Replace OffscreenCanvasSurfaceClient with DisplayCompositorClient

cc/ipc/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")
 import("//cc/cc.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 
 cc_component("ipc") {
   output_name = "cc_ipc"
@@ skipping 26 matching lines @@
   ]
 }
 
 mojom("interfaces") {
   sources = [
     "begin_frame_args.mojom",
     "compositor_frame.mojom",
     "compositor_frame_metadata.mojom",
     "copy_output_request.mojom",
     "copy_output_result.mojom",
+    "display_compositor.mojom",
     "filter_operation.mojom",
     "filter_operations.mojom",
     "frame_sink_id.mojom",
     "local_surface_id.mojom",
     "mojo_compositor_frame_sink.mojom",
     "quads.mojom",
     "render_pass.mojom",
     "returned_resource.mojom",
     "selection.mojom",
     "shared_quad_state.mojom",
     "surface_id.mojom",
     "surface_info.mojom",
     "surface_reference.mojom",
     "surface_sequence.mojom",
     "texture_mailbox.mojom",
     "transferable_resource.mojom",
   ]
 
   public_deps = [
     "//gpu/ipc/common:interfaces",
     "//mojo/common:common_custom_types",
     "//skia/public/interfaces",
     "//ui/events/mojo:interfaces",
     "//ui/gfx/geometry/mojo",
     "//ui/gfx/mojo",
   ]
 }
 
-# Interfaces between two privileged services.
-mojom("internal_interfaces") {
-  sources = [
-    "display_compositor.mojom",
-  ]
-
-  public_deps = [
-    ":interfaces",
-    "//gpu/ipc/common:interfaces",
-    "//ui/gfx/geometry/mojo",
-    "//ui/gfx/mojo",
-  ]
-}
-
 mojom("test_interfaces") {
   testonly = true
   sources = [
     "traits_test_service.mojom",
   ]
 
   public_deps = [
     ":interfaces",
   ]
 }
@@ skipping 38 matching lines @@
     "//skia/public/interfaces:struct_traits",
     "//ui/events:events_base",
     "//ui/events/mojo:struct_traits",
     "//ui/gfx",
     "//ui/gfx:selection_bound",
     "//ui/gfx/geometry/mojo:struct_traits",
     "//ui/gfx/mojo:mojo",
     "//ui/gfx/mojo:struct_traits",
   ]
 }