Use InstallDetails in setup.

chrome/installer/setup/brand_constants.cc

Index: chrome/installer/setup/brand_constants.cc
diff --git a/chrome/installer/setup/brand_constants.cc b/chrome/installer/setup/brand_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f5f134159d67cf6c5db112074499dd19b36bb3d8
--- /dev/null
+++ b/chrome/installer/setup/brand_constants.cc
@@ -0,0 +1,12 @@
+// 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.
+
+#include "chrome/installer/setup/brand_constants.h"
+
+#include "chrome/install_static/install_details.h"
+
+const BrandConstants& GetBrandConstants() {
+  return kBrandConstants[install_static::InstallDetails::Get()
+                             .install_mode_index()];
+}