Eliminate Launchable. Use Navigator instead.

mojo/services/navigation/navigation.mojom

Index: mojo/services/navigation/navigation.mojom
diff --git a/mojo/services/navigation/navigation.mojom b/mojo/services/navigation/navigation.mojom
index f9039d640c6d030e494dc36697f3dae13ebb83ce..ad6b0464f48a3a02c4a2f627c8077f88ce2fde56 100644
--- a/mojo/services/navigation/navigation.mojom
+++ b/mojo/services/navigation/navigation.mojom
@@ -2,10 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import "../public/interfaces/network/url_loader.mojom"
+
 module mojo.navigation {
 
 struct NavigationDetails {
   string url;
+  mojo.URLResponse response;

[Aaron Boodman, 2014/06/18 17:33:00]

I think that these should go in a separate struct, in a separate param.
NavigationDetails will eventually have other information related to the
navigation (disposition, etc). But it will always be present.

I believe that all the request stuff together either will or won't be present,
depending on whether request happened (you can verify with Darin in person if he
is handy).

Also, we will eventually want the URLRequest as well, maybe include it now.

+  handle<data_pipe_consumer> response_body_stream;
+
   // TODO(aa): method, data, etc.
 };