Add missing dependency from Eric's last commit

sky/shell/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 assert(is_android)
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 group("shell") {
@@ skipping 42 matching lines @@
 
   deps = [
     "//base",
     "//base:i18n",
     "//build/config/sanitizers:deps",
     "//mojo/android:libsystem_java",
     "//mojo/common",
     "//mojo/edk/system",
     "//mojo/public/cpp/application",
     "//mojo/public/interfaces/application",
+    "//mojo/services/navigation/public/interfaces",
     "//mojo/services/network/public/interfaces",
     "//skia",
     "//sky/engine",
     "//sky/services/platform",
     "//sky/services/viewport",
     "//ui/gfx/geometry",
     "//ui/gl",
     ":jni_headers",
   ]
 }
@@ skipping 46 matching lines @@
   asset_location = sky_shell_assets_dir
 
   deps = [
     "//base:base_java",
     ":assets",
     ":java",
     ":resources",
     ":sky_shell",
   ]
 }