Purge references of "Mojo Application" from comments & var names.

mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl

Index: mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl
diff --git a/mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl b/mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl
index 23908c26a603123d93a3b78376151800803ec05c..1bcd56a8991d32853b8729a7b4ce13d6b72881fc 100644
--- a/mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl
+++ b/mojo/public/tools/bindings/generators/cpp_templates/interface_definition.tmpl
@@ -236,7 +236,7 @@ class {{class_name}}_{{method.name}}_ProxyToResponder {
   ~{{class_name}}_{{method.name}}_ProxyToResponder() {
 #if DCHECK_IS_ON()
     if (responder_) {
-      // Is the Mojo application destroying the callback without running it
+      // Is the Service destroying the callback without running it
       // and without first closing the pipe?
       responder_->DCheckInvalid("The callback passed to "
           "{{class_name}}::{{method.name}}() was never run.");