[BlackBerry] Update BatteryClientBlackBerry to use our port's new listener interface
https://bugs.webkit.org/show_bug.cgi?id=114892

Patch by Otto Derek Cheung <otcheung@rim.com> on 2013-04-22
Reviewed by Rob Buis.
PR 328147

Modify the client so we only have one listener for battery change events.
The dispatch of different event listeners are handled by BatteryController.

* WebCoreSupport/BatteryClientBlackBerry.cpp:
(WebCore::BatteryClientBlackBerry::BatteryClientBlackBerry):
(WebCore::BatteryClientBlackBerry::startUpdating):
(WebCore::BatteryClientBlackBerry::stopUpdating):
(WebCore::BatteryClientBlackBerry::onStatusChange):
* WebCoreSupport/BatteryClientBlackBerry.h:
(BatteryClientBlackBerry):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148885 268f45cc-cd09-0410-ab3c-d52691b4dbfc