Make deps of GN groups public.

ui/app_list/resources/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.
 
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 
 group("resources") {
-  deps = [
+  public_deps = [
     ":resources_grd",
   ]
 }
 
 grit("resources_grd") {
   source = "app_list_resources.grd"
   outputs = [
     "grit/app_list_resources.h",
     "grit/app_list_resources_map.cc",
     "grit/app_list_resources_map.h",
     "app_list_resources_100_percent.pak",
     "app_list_resources_200_percent.pak",
     "app_list_resources_300_percent.pak",
   ]
 }