Bundle some ash resources into chrome for mash=1 use_ash=0

chrome/chrome_paks.gni

 # Copyright 2016 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("//build/config/locales.gni")
 import("//chrome/common/features.gni")
 import("//ui/base/ui_features.gni")
 import("chrome_repack_locales.gni")
 
 # Generates a rule to repack a set of resources, substituting a given string
@@ skipping 33 matching lines @@
       "//content/app/resources",
       "//net:net_resources",
       "//third_party/WebKit/public:image_resources",
       "//ui/resources",
     ]
 
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
 
-    if (use_ash) {
+    # Chrome --mash in non-chromeos builds need to access some ash resources
+    # in order to avoid some missing icons in Ash's window manager session.
+    # TODO(tonikitoo): Remove this when a chrome/mus is available.
+    if (use_ash || enable_package_mash_services) {
       sources +=
           [ "$root_gen_dir/ash/resources/ash_resources_${percent}_percent.pak" ]
       deps += [ "//ash/resources" ]
     }
     if (toolkit_views) {
       sources += [ "$root_gen_dir/ui/views/resources/views_resources_${percent}_percent.pak" ]
       deps += [ "//ui/views/resources" ]
     }
     if (is_chromeos) {
       sources += [ "$root_gen_dir/ui/chromeos/resources/ui_chromeos_resources_${percent}_percent.pak" ]
@@ skipping 186 matching lines @@
       ":${target_name}_locales",
     ]
     if (enable_hidpi) {
       public_deps += [ ":${target_name}_200_percent" ]
     }
     if (defined(invoker.public_deps)) {
       public_deps += invoker.public_deps
     }
   }
 }