mus: Simplify generation of memory-buffer ids.

services/ui/common/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//testing/test.gni")
 
 source_set("mus_common") {
   sources = [
@@ skipping 22 matching lines @@
     "//mojo/public/cpp/system",
     "//services/ui/public/interfaces",
     "//ui/base",
   ]
 }
 
 # GPU related code used by the server-side components (e.g. window server
 # process, display compositor in the gpu process).
 source_set("server_gpu") {
   sources = [
-    "generic_shared_memory_id_generator.cc",
-    "generic_shared_memory_id_generator.h",
     "mus_gpu_memory_buffer_manager.cc",
     "mus_gpu_memory_buffer_manager.h",
   ]
 
   deps = [
     "//gpu/ipc/client",
   ]
 
   public_deps = [
     "//gpu/command_buffer/client",
@@ skipping 28 matching lines @@
     "task_runner_test_base.cc",
     "task_runner_test_base.h",
   ]
 
   deps = [
     "//base",
     "//base/test:test_support",
     "//testing/gtest",
   ]
 }