mozart: Port the spinning cube example.

examples/ui/spinning_cube/BUILD.gn

Index: examples/ui/spinning_cube/BUILD.gn
diff --git a/examples/spinning_cube/BUILD.gn b/examples/ui/spinning_cube/BUILD.gn
similarity index 57%
copy from examples/spinning_cube/BUILD.gn
copy to examples/ui/spinning_cube/BUILD.gn
index 68d84f421350e4632104db03936c78704c2087c6..c3c7902bc46791fb71e64e6fe26bb88d1c57e3e8 100644
--- a/examples/spinning_cube/BUILD.gn
+++ b/examples/ui/spinning_cube/BUILD.gn
@@ -5,37 +5,31 @@
 import("//mojo/public/mojo_application.gni")
 
 mojo_native_application("spinning_cube") {
+  output_name = "spinning_cube_view"
+
   sources = [
-    "gles2_client_impl.cc",
-    "gles2_client_impl.h",
+    "main.cc",
     "spinning_cube_app.cc",
+    "spinning_cube_app.h",
+    "spinning_cube_view.cc",
+    "spinning_cube_view.h",
   ]
 
   deps = [
-    ":lib",
     "//base",
+    "//examples/spinning_cube:lib",
+    "//mojo/application",
+    "//mojo/common",
+    "//mojo/environment:chromium",
+    "//mojo/gpu",
     "//mojo/public/c/gpu",
     "//mojo/public/c/gpu:gpu_onscreen",
-    "//mojo/public/cpp/application:standalone",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/environment",
     "//mojo/public/cpp/system",
-    "//mojo/public/cpp/utility",
     "//mojo/services/geometry/interfaces",
-    "//mojo/services/native_viewport/interfaces",
-  ]
-}
-
-source_set("lib") {
-  sources = [
-    "spinning_cube.cc",
-    "spinning_cube.h",
-  ]
-
-  deps = [
-    "//base",
-    "//mojo/public/c/gpu",
-    "//mojo/public/c/gpu:MGL",
-    "//mojo/public/cpp/environment",
+    "//mojo/services/input_events/interfaces",
+    "//mojo/services/surfaces/interfaces",
+    "//mojo/services/ui/views/interfaces",
   ]
 }