Reorganizes Chromecast code to better reflect functional dependencies.

chromecast/shell/browser/resources/resource_ids

-# Copyright 2014 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.
-{
-  "SRCDIR": "../../../..",
-
-  "chromecast/shell/browser/resources/shell_resources.grd": {
-    "includes": [31000],
-  },
-  "chromecast/shell/settings/chromecast_settings.grd": {
-    "messages": [31500],
-  },
-}