browser: Handle the registration of ChromeLauncher prefs outside of views.

chrome/browser/ui/ash/chrome_launcher_prefs.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_ASH_CHROME_LAUNCHER_PREFS_H_
+#define CHROME_BROWSER_UI_ASH_CHROME_LAUNCHER_PREFS_H_
+#pragma once
+
+#include <string>
+
+class PrefService;
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace ash {
+
+// Path within the dictionary entries in the prefs::kPinnedLauncherApps list
+// specifying the extension ID of the app to be pinned by that entry.
+extern const char kPinnedAppsPrefAppIDPath[];
+
+// Values used for prefs::kShelfAutoHideBehavior.
+extern const char kShelfAutoHideBehaviorAlways[];
+extern const char kShelfAutoHideBehaviorDefault[];
+extern const char kShelfAutoHideBehaviorNever[];
+
+void RegisterChromeLauncherUserPrefs(PrefService* user_prefs);
+
+base::DictionaryValue* CreateAppDict(const std::string& app_id);
+
+}  // namespace ash
+
+#endif  // CHROME_BROWSER_UI_ASH_CHROME_LAUNCHER_PREFS_H_