Replaces |shell_handle| with |application_request| as the name of the parameter to MojoMain().

BUG=468496
R=viettrungluu@chromium.org, viettrungluu

Review URL: https://codereview.chromium.org/1058163002
diff --git a/services/test_service/test_service_application.cc b/services/test_service/test_service_application.cc
index 67da318..f168cb6 100644
--- a/services/test_service/test_service_application.cc
+++ b/services/test_service/test_service_application.cc
@@ -60,7 +60,7 @@
 }  // namespace test
 }  // namespace mojo
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunner runner(new mojo::test::TestServiceApplication);
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }