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

mojo/services/launcher/launcher.cc

Index: mojo/services/launcher/launcher.cc
diff --git a/mojo/services/launcher/launcher.cc b/mojo/services/launcher/launcher.cc
index b24d232b30328e7a3f6690a5830409e8feec355b..880d62cf82aaa4e7ab45eef895df667894fbb634 100644
--- a/mojo/services/launcher/launcher.cc
+++ b/mojo/services/launcher/launcher.cc
@@ -9,7 +9,9 @@
 #include "base/strings/string_util.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_impl.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/types.h"
 #include "mojo/services/public/interfaces/launcher/launcher.mojom.h"
@@ -174,9 +176,10 @@ void LaunchInstance::OnReceivedResponse(URLResponsePtr response) {
   ScheduleDestroy();
 }
 
-// static
-ApplicationDelegate* ApplicationDelegate::Create() {
-  return new LauncherApp;
-}
-
 }  // namespace mojo
+
+extern "C" APPLICATION_EXPORT MojoResult CDECL MojoMain(
+    MojoHandle shell_handle) {
+  mojo::ApplicationRunnerChromium runner(new mojo::LauncherApp);
+  return runner.Run(shell_handle);
+}