[MD settings] moving settings strings to a separate grd file

tools/gritsettings/resource_ids

 # Copyright (c) 2012 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.
 #
 # This file is used to assign starting resource ids for resources and strings
 # used by Chromium.  This is done to ensure that resource ids are unique
 # across all the grd files.  If you are adding a new grd file, please add
 # a new entry to this file.
 #
 # The first entry in the file, SRCDIR, is special: It is a relative path from
@@ skipping 97 matching lines @@
   },
   # Leave lots of space for generated_resources since it has most of our
   # strings.
   "chrome/app/generated_resources.grd": {
     "structures": [12000],
     "messages": [12500],
   },
   "content/app/strings/content_strings.grd": {
     "messages": [18900],
   },
+  "chrome/app/settings_strings.grd": {
+    "messages": [20000],
+  },
   "components/policy/resources/policy_templates.grd": {
     "structures": [20400],
     "messages": [20410],
   },
   "chrome/browser/resources/signin_internals_resources.grd": {
     "includes": [21400],
   },
   "chrome/browser/resources/invalidations_resources.grd": {
     "includes": [21600],
   },
@@ skipping 154 matching lines @@
   },
   "chrome/browser/devtools/device/webrtc/resources.grd": {
     "includes": [30820],
   },
   "chrome/browser/resources/settings/settings_resources.grd": {
     "structures": [30920],
   },
 
   # Resource ids starting at 31000 are reserved for projects built on Chromium.
 }