Allow native_viewport to create new native windows on demand on Android.

services/native_viewport/BUILD.gn

Index: services/native_viewport/BUILD.gn
diff --git a/services/native_viewport/BUILD.gn b/services/native_viewport/BUILD.gn
index 208cd0aefd9687d4200d528fe0a7bf6fff03a874..f987ea0f4716a774d74113df6f1b417b94c64ed4 100644
--- a/services/native_viewport/BUILD.gn
+++ b/services/native_viewport/BUILD.gn
@@ -27,6 +27,7 @@ if (is_android) {
       "//mojo/services/keyboard/public/interfaces:interfaces_java",
       "//mojo/public/java:bindings",
       "//mojo/public/java:system",
+      "//shell:java",

[qsr, 2015/08/06 14:13:20]

As discussed offline, this layering violation is a problem because on
non-android platform this application is not bundled in the shell.

[etiennej, 2015/08/07 10:16:37]

Done.

     ]
   }