Add CompositorFrameSinkClientBinding To Be Used By FrameGenerator

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 670b153e6ad05dd8e076ecb8518bc6308e18d138..0cc3d669e3e4f6000573318154c2891ba8639208 100644
--- a/services/ui/ws/BUILD.gn
+++ b/services/ui/ws/BUILD.gn
@@ -21,6 +21,8 @@ static_library("lib") {
     "access_policy_delegate.h",
     "accessibility_manager.cc",
     "accessibility_manager.h",
+    "compositor_frame_sink_client_binding.cc",
+    "compositor_frame_sink_client_binding.h",
     "cursor_location_manager.cc",
     "cursor_location_manager.h",
     "cursor_state.cc",
@@ -31,8 +33,6 @@ static_library("lib") {
     "display.h",
     "display_binding.cc",
     "display_binding.h",
-    "display_client_compositor_frame_sink.cc",
-    "display_client_compositor_frame_sink.h",
     "display_manager.cc",
     "display_manager.h",
     "drag_controller.cc",
@@ -290,6 +290,7 @@ service_test("mus_ws_unittests") {
     "//services/ui/gpu:gpu",
     "//services/ui/public/cpp",
     "//services/ui/public/interfaces",
+    "//testing/gmock",
     "//testing/gtest",
     "//third_party/mesa:osmesa",
     "//ui/aura",