Remove duplicate application cpp files in mojo/application.

mojo/services/test_service/test_service_application.cc

Index: mojo/services/test_service/test_service_application.cc
diff --git a/mojo/services/test_service/test_service_application.cc b/mojo/services/test_service/test_service_application.cc
index 610e0cbf6c6ed7308786dcc7449a6f9cfa09d993..2c1569c89cb3c69557ff01c5655558fb2cd080f7 100644
--- a/mojo/services/test_service/test_service_application.cc
+++ b/mojo/services/test_service/test_service_application.cc
@@ -9,7 +9,6 @@
 #include "mojo/application/public/cpp/application_connection.h"
 #include "mojo/application/public/cpp/application_runner.h"
 #include "mojo/public/c/system/main.h"
-#include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/services/test_service/test_service_impl.h"
 #include "mojo/services/test_service/test_time_service_impl.h"
 
@@ -54,7 +53,7 @@ void TestServiceApplication::ReleaseRef() {
   assert(ref_count_ > 0);
   ref_count_--;
   if (ref_count_ <= 0)
-    RunLoop::current()->Quit();
+    base::MessageLoop::current()->Quit();
 }
 
 }  // namespace test