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

mojo/public/cpp/bindings/lib/router.cc

Index: mojo/public/cpp/bindings/lib/router.cc
diff --git a/mojo/public/cpp/bindings/lib/router.cc b/mojo/public/cpp/bindings/lib/router.cc
index 8db5c1bbe4cc1822664d6f663277986ae4a1318c..072556bb5e6ebee446bc7f1cbde6d4a71e267c1b 100644
--- a/mojo/public/cpp/bindings/lib/router.cc
+++ b/mojo/public/cpp/bindings/lib/router.cc
@@ -38,7 +38,7 @@ class ResponderThunk : public MessageReceiverWithStatus {
         task_runner_(std::move(runner)) {}
   ~ResponderThunk() override {
     if (!accept_was_invoked_) {
-      // The Mojo application handled a message that was expecting a response
+      // The Service handled a message that was expecting a response
       // but did not send a response.
       // We raise an error to signal the calling application that an error
       // condition occurred. Without this the calling application would have no