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

shell/test/pingable_app.cc

Index: shell/test/pingable_app.cc
diff --git a/shell/test/pingable_app.cc b/shell/test/pingable_app.cc
index b86409843b6957d6bb744c3c1f88908e7c52f1d5..5a52dd6a9b10d97c0456c662a99dd6b843d152f8 100644
--- a/shell/test/pingable_app.cc
+++ b/shell/test/pingable_app.cc
@@ -63,7 +63,7 @@ class PingableApp : public mojo::ApplicationDelegate,
 
 }  // namespace mojo
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunner runner(new mojo::PingableApp);
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }