Merge apps/pref* to extensions/browser/pref*

apps/pref_names.h

Index: apps/pref_names.h
diff --git a/apps/pref_names.h b/apps/pref_names.h
deleted file mode 100644
index 764be8274ebfd952dbb1fdb06d452071711fc24e..0000000000000000000000000000000000000000
--- a/apps/pref_names.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2013 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.
-
-#ifndef APPS_PREF_NAMES_H_
-#define APPS_PREF_NAMES_H_
-
-namespace apps {
-namespace prefs {
-
-// Alphabetical list of preference names specific to Apps component.
-// Keep alphabetized and document each one in the source file.
-extern const char kAppFullscreenAllowed[];
-
-}  // namespace prefs
-}  // namespace apps
-
-#endif  // APPS_PREF_NAMES_H_