Add command line flag to allow testing clients not connected to localhost. Otherwise, restrict conn…

blimp/engine/app/switches.h

Index: blimp/engine/app/switches.h
diff --git a/blimp/engine/app/switches.h b/blimp/engine/app/switches.h
index b7c807fd9bbbb6c1ae0805b16140064d39139470..3361cb9423cc77e720be6d12bbd49e6786d64588 100644
--- a/blimp/engine/app/switches.h
+++ b/blimp/engine/app/switches.h
@@ -11,6 +11,9 @@ namespace engine {
 // The port to listen to for incoming TCP connections.
 extern const char kEnginePort[];
 
+// Boolean indicating whether or not to listen outside of localhost.

[Wez, 2016/08/30 21:42:00]

nit: Suggest something like "Flag enabling access by clients from non-localhost
IP addresses."

+extern const char kEngineListenOutside[];
+
 }  // namespace engine
 }  // namespace blimp