Fork the mojo shell interfaces used by Mandoline.

mojo/application/public/cpp/lib/application_test_base.cc

Index: mojo/application/public/cpp/lib/application_test_base.cc
diff --git a/third_party/mojo/src/mojo/public/cpp/application/lib/application_test_base.cc b/mojo/application/public/cpp/lib/application_test_base.cc
similarity index 98%
rename from third_party/mojo/src/mojo/public/cpp/application/lib/application_test_base.cc
rename to mojo/application/public/cpp/lib/application_test_base.cc
index c4ec87a275b8f8a41edc06653bbfd223089a1b9c..f3048dad0b5335648d733ef059a1786b89e074ad 100644
--- a/third_party/mojo/src/mojo/public/cpp/application/lib/application_test_base.cc
+++ b/mojo/application/public/cpp/lib/application_test_base.cc
@@ -4,11 +4,11 @@
 
 #include "mojo/public/cpp/application/application_test_base.h"
 
+#include "mojo/application/public/interfaces/application.mojom.h"
 #include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/message_pipe.h"
-#include "mojo/public/interfaces/application/application.mojom.h"
 
 namespace mojo {
 namespace test {