Settings: Add a hook for operator or vendor specific settings.

The Settings application now provides a hook that can be used by an
operator or a vendor specific application to add an activity of choice
in the settings menu.

Change-Id: Id55da9fd4262bbfc6a5abf863799c747b0d75b24
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 5309cf5..c53c2fa 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -30,6 +30,9 @@
     private static final String KEY_SEARCH_SETTINGS = "search_settings";
     private static final String KEY_DOCK_SETTINGS = "dock_settings";
     
+    private static final String KEY_OPERATOR_SETTINGS = "operator_settings";
+    private static final String KEY_MANUFACTURER_SETTINGS = "manufacturer_settings";
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -46,6 +49,11 @@
         if (getResources().getBoolean(R.bool.has_dock_settings) == false && dockSettings != null) {
             parent.removePreference(dockSettings);
         }
+
+        Utils.updatePreferenceToSpecificActivityFromMetaDataOrRemove(this, parent,
+                KEY_OPERATOR_SETTINGS);
+        Utils.updatePreferenceToSpecificActivityFromMetaDataOrRemove(this, parent,
+                KEY_MANUFACTURER_SETTINGS);
     }
     
     @Override