Move services code brought in from Mojo to live under //third_party.

mojo/converters/surfaces/BUILD.gn

 # Copyright 2014 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.
 
 # GYP version: mojo/mojo_converters.gypi:mojo_surfaces_lib
 component("surfaces") {
   output_name = "mojo_surfaces_lib"
 
   sources = [
     "mojo_surfaces_export.h",
@@ skipping 10 matching lines @@
     "//ui/gfx",
   ]
 
   deps = [
     "//base",
     "//cc",
     "//cc/surfaces",
     "//gpu",
     "//ui/gfx/geometry",
     "//mojo/environment:chromium",
-    "//mojo/services/surfaces/public/interfaces:surface_id",
-    "//mojo/services/surfaces/public/interfaces",
     "//skia",
     "//third_party/mojo/src/mojo/public/c/system:for_component",
+    "//third_party/mojo_services/src/surfaces/public/interfaces:surface_id",
+    "//third_party/mojo_services/src/surfaces/public/interfaces",
   ]
 }