Teach PRESUBMIT.py how to run gn check for most of the mojo repo

mojo/services/window_manager/BUILD.gn

Index: mojo/services/window_manager/BUILD.gn
diff --git a/mojo/services/window_manager/BUILD.gn b/mojo/services/window_manager/BUILD.gn
index 751c97c3cfc099338b50cb40cc1ee11c78221311..8fdf5a3c8117447137884d20311a7813a4830f3d 100644
--- a/mojo/services/window_manager/BUILD.gn
+++ b/mojo/services/window_manager/BUILD.gn
@@ -40,18 +40,21 @@ source_set("lib") {
 
   deps = [
     "//base",
-    "//ui/base",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-    "//ui/wm",
-    "//mojo/aura",
     "//mojo/application",
     "//mojo/common",
+    "//mojo/converters/geometry",
     "//mojo/converters/input_events",
-    "//mojo/services/public/cpp/view_manager",
+    "//mojo/public/cpp/bindings",
     "//mojo/public/interfaces/application:application",
+    "//mojo/services/public/cpp/view_manager",
     "//mojo/services/public/interfaces/native_viewport",
     "//mojo/services/public/interfaces/window_manager",
+    "//ui/aura",
+    "//ui/base",
+    "//ui/events",
+    "//ui/gfx",
+    "//ui/gfx/geometry",
+    "//ui/wm",
   ]
 }
 
@@ -67,6 +70,7 @@ test("window_manager_unittests") {
     "//mojo/application_manager",
     "//mojo/edk/system",
     "//mojo/environment:chromium",
+    "//mojo/public/cpp/application",
     "//mojo/services/public/cpp/view_manager",
     "//mojo/services/public/interfaces/view_manager",
     "//mojo/services/public/interfaces/window_manager",