mozart: Port the spinning cube example.

examples/ui/spinning_cube/BUILD.gn

Index: examples/ui/spinning_cube/BUILD.gn
diff --git a/examples/ganesh_app/BUILD.gn b/examples/ui/spinning_cube/BUILD.gn
similarity index 54%
copy from examples/ganesh_app/BUILD.gn
copy to examples/ui/spinning_cube/BUILD.gn
index 915558c53a51c5be2d7931ce8340f3aa66f26ab9..3609cead73d03e12ff1737143bf8e79af01f4c07 100644
--- a/examples/ganesh_app/BUILD.gn
+++ b/examples/ui/spinning_cube/BUILD.gn
@@ -4,32 +4,30 @@
 
 import("//mojo/public/mojo_application.gni")
 
-mojo_native_application("ganesh_app") {
+mojo_native_application("spinning_cube_view") {
   sources = [
-    "ganesh_app.cc",
-    "ganesh_view.cc",
-    "ganesh_view.h",
-    "texture_uploader.cc",
-    "texture_uploader.h",
+    "main.cc",
+    "spinning_cube_app.cc",
+    "spinning_cube_app.h",
+    "spinning_cube_view.cc",
+    "spinning_cube_view.h",
   ]
 
   deps = [
     "//base",
+    "//examples/spinning_cube:lib",
     "//mojo/application",
-    "//mojo/common:tracing_impl",
+    "//mojo/common",
     "//mojo/environment:chromium",
     "//mojo/gpu",
     "//mojo/public/c/gpu",
+    "//mojo/public/c/gpu:gpu_onscreen",
     "//mojo/public/cpp/bindings",
+    "//mojo/public/cpp/environment",
     "//mojo/public/cpp/system",
-    "//mojo/public/interfaces/application",
-    "//mojo/services/geometry/cpp",
     "//mojo/services/geometry/interfaces",
-    "//mojo/services/surfaces/cpp",
+    "//mojo/services/input_events/interfaces",
     "//mojo/services/surfaces/interfaces",
-    "//mojo/services/surfaces/interfaces:surface_id",
-    "//mojo/services/view_manager/cpp",
-    "//mojo/skia",
-    "//skia",
+    "//mojo/services/ui/views/interfaces",
   ]
 }