[Athena] minimum impl to add screen/background and test windows

athena/main/main_util.h

Index: athena/main/main_util.h
diff --git a/content/test/data/web_ui_test_mojo_bindings.mojom b/athena/main/main_util.h
similarity index 52%
copy from content/test/data/web_ui_test_mojo_bindings.mojom
copy to athena/main/main_util.h
index 9cac34e56ab6ee8486cf0566d5a73cd199ade7ce..cdc135056bbaadd251c8731e062166c550837bd4 100644
--- a/content/test/data/web_ui_test_mojo_bindings.mojom
+++ b/athena/main/main_util.h
@@ -2,15 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module content {
+#ifndef ATHENA_MAIN_MAIN_UTIL_H_
+#define ATHENA_MAIN_MAIN_UTIL_H_
 
-interface BrowserTarget {
-  PingResponse();
-};
+void CreateTestApp();
 
-[Client=BrowserTarget]
-interface RendererTarget {
-  Ping();
-};
+void SetupBackgroundImage();
 
-}
+#endif  // ATHENA_MAIN_MAIN_UTIL_H_