Updates to shelf icons for Ash material design

ash/resources/vector_icons/BUILD.gn

 # 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.
 
 action("aggregate_vector_icons") {
   visibility = [ ":*" ]
 
   script = "//ui/gfx/vector_icons/aggregate_vector_icons.py"
 
   icons = [
+    "shelf_applist.1x.icon",

[James Cook, 2016/09/08 20:23:44]

Thanks for migrating these into //ash.

+    "shelf_applist.icon",
+    "shelf_notifications.1x.icon",
+    "shelf_notifications.icon",
     "system_menu_keyboard.1x.icon",
     "system_menu_keyboard.icon",
   ]
 
   output_cc = "$target_gen_dir/vector_icons.cc"
   output_h = "$target_gen_dir/vector_icons.h"
 
   inputs = icons
   inputs += [
     "vector_icons.cc.template",
@@ skipping 17 matching lines @@
 source_set("vector_icons") {
   sources = get_target_outputs(":aggregate_vector_icons")
   sources += [ "//ui/gfx/vector_icon_types.h" ]
 
   deps = [
     ":aggregate_vector_icons",
     "//base",
     "//skia",
   ]
 }