packages/apps/Settings/src/com/android/settings/notification/NotificationSettings.java:141: error: cannot find symbol
        initIncreasingRing(mSoundCategory);
        ^
  symbol:   method initIncreasingRing(PreferenceCategory)
  location: class NotificationSettings
packages/apps/Settings/src/com/android/settings/notification/NotificationSettings.java:199: error: cannot find symbol
                mRingOrNotificationPreference.setTitle(R.string.ring_notification_volume_option_tile);
                                                               ^
  symbol:   variable ring_notification_volume_option_tile
  location: class string
packages/apps/Settings/src/com/android/settings/notification/NotificationSettings.java:437: error: cannot find symbol
            if (VOLUME_LINK_NOTIFICATION_URI.equals(uri)) {
                ^
  symbol:   variable VOLUME_LINK_NOTIFICATION_URI
  location: class NotificationSettings.SettingsObserver
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.