Update liftetime management of GpuClient

services/ui/ws/BUILD.gn

Index: services/ui/ws/BUILD.gn
diff --git a/services/ui/ws/BUILD.gn b/services/ui/ws/BUILD.gn
index 2e0fed6a25a8250042e00a32651e75d17c19e5c8..0646019ddf962a3c2dd03a55da518e4eb4bee1d7 100644
--- a/services/ui/ws/BUILD.gn
+++ b/services/ui/ws/BUILD.gn
@@ -49,6 +49,8 @@ static_library("lib") {
     "focus_controller_observer.h",
     "frame_generator.cc",
     "frame_generator.h",
+    "gpu_client.cc",
+    "gpu_client.h",
     "gpu_host.cc",
     "gpu_host.h",
     "gpu_host_delegate.h",
@@ -226,6 +228,7 @@ service_test("mus_ws_unittests") {
     "event_matcher_unittest.cc",
     "focus_controller_unittest.cc",
     "frame_generator_unittest.cc",
+    "gpu_host_unittest.cc",
     "server_window_drawn_tracker_unittest.cc",
     "test_server_window_delegate.cc",
     "test_server_window_delegate.h",
@@ -264,6 +267,7 @@ service_test("mus_ws_unittests") {
     "//services/service_manager/public/interfaces",
     "//services/ui/common:mus_common",
     "//services/ui/common:task_runner_test_base",
+    "//services/ui/gpu:gpu",
     "//services/ui/public/cpp",
     "//services/ui/public/interfaces",
     "//testing/gtest",