apps: Stop depending on chrome_switches.h

apps/switches.h

Index: apps/switches.h
diff --git a/apps/pref_names.h b/apps/switches.h
similarity index 55%
copy from apps/pref_names.h
copy to apps/switches.h
index 1cca82f71d3bb13992f9a84eea57db0eaab9e94a..c9ff965a01e0f7baedb07af9d6110c7679a0b53a 100644
--- a/apps/pref_names.h
+++ b/apps/switches.h
@@ -2,17 +2,15 @@
 // 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_
+#ifndef APPS_SWITCHES_H_
+#define APPS_SWITCHES_H_
 
 namespace apps {
+namespace switches {
 
-namespace prefs {
-
-extern const char kAppLauncherIsEnabled[];
-
-}  // namespace prefs
+extern const char kShowAppListShortcut[];
 
+}  // namespace switches
 }  // namespace apps
 
-#endif  // APPS_PREF_NAMES_H_
+#endif  // APPS_SWITCHES_H_