Add athena_strings.grd with athena specific strings

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
 # this file to the base of your checkout.
 #
 # http://msdn.microsoft.com/en-us/library/t2zechd4(VS.71).aspx says that the
 # range for IDR_ is 1 to 28,671 and the range for IDS_ is 1 to 32,767 and
 # common convention starts practical use of IDs at 100 or 101.

[tony, 2014/09/25 00:51:41]

We might want to update this comment since we no longer use Windows .rc files
and pak files can go up to 64k.

[pkotwicz, 2014/09/25 01:33:44]

What do you suggest changing the comment to?

[tony, 2014/09/25 03:35:21]

"The range of ID values, which is used by pak files, is from 0 to 2^16 - 1."

 {
   "SRCDIR": "../..",
 
   "chrome/browser/browser_resources.grd": {
     "includes": [400],
     "structures": [750],
   },
   "chrome/browser/resources/component_extension_resources.grd": {
     "includes": [1000],
     "structures": [1450],
@@ skipping 190 matching lines @@
   },
   "components/resources/components_resources.grd": {
     "includes": [30250],
   },
   "components/resources/components_scaled_resources.grd": {
     "structures": [30350],
   },
   "third_party/WebKit/public/blink_resources.grd": {
     "includes": [30500],
   },
+  "athena/strings/athena_strings.grd": {
+    "messages": [42000],
+  },
 
   # These files don't need to reserve resource ids, but are listed here so that
   # translation scripts know of their existence.
   "android_webview/java/strings/android_webview_strings.grd": {},
   "chrome/android/java/strings/android_chrome_strings.grd": {},
   "content/public/android/java/strings/android_content_strings.grd": {},
   "ui/android/java/strings/android_ui_strings.grd": {},
 
   # Resource ids starting at 31000 are reserved for projects built on Chromium.
 }