mojo: first take on removing mojo_main_{chromium,standalone}.

mojo/examples/nesting_app/nesting_app.cc

Index: mojo/examples/nesting_app/nesting_app.cc
diff --git a/mojo/examples/nesting_app/nesting_app.cc b/mojo/examples/nesting_app/nesting_app.cc
index 70fa489a8e11aca65f4593f23cabc7732e86c482..cf97cfdf83bdfdfde50be1a0773845641d57b93f 100644
--- a/mojo/examples/nesting_app/nesting_app.cc
+++ b/mojo/examples/nesting_app/nesting_app.cc
@@ -9,6 +9,8 @@
 #include "mojo/examples/window_manager/window_manager.mojom.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/application/application_export.h"
+#include "mojo/public/cpp/application/application_runner_chromium.h"
 #include "mojo/public/cpp/application/interface_factory_impl.h"
 #include "mojo/services/public/cpp/view_manager/node.h"
 #include "mojo/services/public/cpp/view_manager/node_observer.h"
@@ -142,10 +144,11 @@ void NavigatorImpl::Navigate(uint32 node_id,
 }
 
 }  // namespace examples
+}  // namespace mojo
 
-// static
-ApplicationDelegate* ApplicationDelegate::Create() {
-  return new examples::NestingApp;
+extern "C" APPLICATION_EXPORT MojoResult CDECL MojoMain(
+    MojoHandle shell_handle) {
+  mojo::ApplicationRunnerChromium app;
+  app.take_delegate(make_scoped_delegate(new mojo::examples::NestingApp));
+  return app.Run(shell_handle);
 }
-
-}  // namespace mojo