Revert of [Service Manager] Get rid of dynamic service discovery

services/ui/BUILD.gn

Index: services/ui/BUILD.gn
diff --git a/services/ui/BUILD.gn b/services/ui/BUILD.gn
index b202be7d48b163bc323dbd3d6e7db679cf96b5ce..163c0dce3b45c67368c31c65a097ee31f4c85b73 100644
--- a/services/ui/BUILD.gn
+++ b/services/ui/BUILD.gn
@@ -6,6 +6,7 @@
 import("//testing/test.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
+import("//services/service_manager/public/constants.gni")
 import("//tools/grit/repack.gni")
 
 group("all") {
@@ -23,23 +24,60 @@
   ]
 
   deps = [
+    ":copy_gl_libraries",
     ":lib",
+    ":resources_100",
+    ":resources_200",
+    ":resources_strings",
     "//services/service_manager/public/cpp:sources",
     "//services/tracing/public/interfaces",
   ]
 
   data_deps = [
+    ":copy_gl_libraries",
     ":manifest",
-    ":resources_100",
-    ":resources_200",
-    ":resources_strings",
     "//services/ui/ime/test_ime_driver",
+  ]
+
+  resources = [
+    "$root_out_dir/mus_app_resources_strings.pak",
+    "$root_out_dir/mus_app_resources_100.pak",
+    "$root_out_dir/mus_app_resources_200.pak",
   ]
 }
 
 service_manifest("manifest") {
   name = "ui"
   source = "manifest.json"
+}
+
+copy("copy_gl_libraries") {
+  deps = [
+    "//third_party/mesa:osmesa",
+  ]
+
+  if (is_win) {
+    deps += [
+      "//third_party/angle:libEGL",
+      "//third_party/angle:libGLESv2",
+    ]
+
+    sources = [
+      "$root_shlib_dir/libEGL.dll",
+      "$root_shlib_dir/libGLESv2.dll",
+      "$root_shlib_dir/osmesa.dll",
+    ]
+  } else if (is_android || is_linux) {
+    sources = [
+      "$root_shlib_dir/libosmesa.so",
+    ]
+  } else {
+    sources = []
+  }
+
+  outputs = [
+    "$root_out_dir/$packages_directory/ui/{{source_file_part}}",
+  ]
 }
 
 source_set("lib") {