services/ui: Split GpuServiceInternal into gpu vs. ws pieces.

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 9aa188a9bf8307ef7b157bd2bea7eb9d8e4844a8..89b27f2469049a256ccf66e85fddea50bf0cff6b 100644
--- a/services/ui/ws/BUILD.gn
+++ b/services/ui/ws/BUILD.gn
@@ -41,6 +41,8 @@ static_library("lib") {
     "gpu_service_proxy.h",
     "modal_window_controller.cc",
     "modal_window_controller.h",
+    "mus_gpu_memory_buffer_manager.cc",
+    "mus_gpu_memory_buffer_manager.h",
     "operation.cc",
     "operation.h",
     "platform_display.cc",
@@ -104,9 +106,10 @@ static_library("lib") {
   ]
 
   deps = [
-    # TODO(sad): Temporary, until the GPU process is split out of ws.
-    "//services/ui/gpu",
-    "//services/ui/gpu/display_compositor",
+    "//gpu/command_buffer/client",
+    "//gpu/ipc/client",
+    "//gpu/ipc/common",
+    "//services/ui/gpu",  # TODO(sad): Temporary until GPU process split.
     "//services/ui/gpu/interfaces",
   ]