Revert of [Chromecast] Change chromecast_branding to public

chromecast/base/BUILD.gn

 # Copyright 2015 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("//chrome/version.gni")  # TODO layering violation!
 import("//chromecast/chromecast.gni")
 import("//testing/test.gni")
 
 source_set("base") {
   sources = [
@@ skipping 39 matching lines @@
   ]
 }
 
 source_set("cast_sys_info") {
   sources = [
     "cast_sys_info_dummy.cc",
     "cast_sys_info_dummy.h",
     "cast_sys_info_util.h",
   ]
 
-  if (chromecast_branding == "public" && !is_android) {
+  if (!is_chromecast_chrome_branded && !is_android) {
     sources += [ "cast_sys_info_util_simple.cc" ]
   }
 
   # TODO(mbjorge): put cast_sys_info_android in here
 
   deps = [
     "//base",
     "//chromecast/public",
   ]
 }
 
 process_version("cast_version") {
   template_file = "version.h.in"
   output = "$target_gen_dir/version.h"
   extra_args = [
     "-e",
     "VERSION_FULL=\"%s.%s.%s.%s\"%(MAJOR,MINOR,BUILD,PATCH)",
 
     # TODO(slan): Populate the fields below with real values
     "-e",
     "CAST_BUILD_INCREMENTAL=20150608.181153",
     "-e",
     "CAST_BUILD_RELEASE=1.15",
     "-e",
     "CAST_IS_DEBUG_BUILD=1",
     "-e",
     "CAST_PRODUCT_TYPE=0",
   ]
 }