Revert 156678 - Native messaging now uses the MessageService back-end.

chrome/renderer/extensions/extension_custom_bindings.h

Index: chrome/renderer/extensions/extension_custom_bindings.h
diff --git a/chrome/renderer/extensions/extension_custom_bindings.h b/chrome/renderer/extensions/extension_custom_bindings.h
index 3bc29ee66daec04895c90cee7bfce912587c6805..682b001492a6bec41e5f04532a922fe92b9d9439 100644
--- a/chrome/renderer/extensions/extension_custom_bindings.h
+++ b/chrome/renderer/extensions/extension_custom_bindings.h
@@ -21,9 +21,6 @@ class ExtensionCustomBindings : public ChromeV8Extension {
   // Creates a new messaging channel to the given extension.
   static v8::Handle<v8::Value> OpenChannelToExtension(
       const v8::Arguments& args);
-
-  static v8::Handle<v8::Value> OpenChannelToNativeApp(
-      const v8::Arguments& args);
 };
 
 }  // namespace extensions