Reviewed by Sam.

        Fix for <rdar://problem/5211122> DRT crash below
        SVGTimer::applyAnimations when page cache is enabled 
        (SVG animation timers do not properly cancel themselves)

        There were still a few paths in the SVG Animation code
        that could cause timers to be created and used.  This 
        patch inserts addition SVG_EXPERIMENTAL blocks to prevent
        these timers from being used.

        * ksvg2/misc/SVGDocumentExtensions.cpp:
        (WebCore::SVGDocumentExtensions::startAnimations):
        * ksvg2/misc/SVGTimer.cpp:
        (WebCore::SVGTimer::animationsByElement):
        (WebCore::SVGTimer::applyAnimations):
        (WebCore::SVGTimer::notifyAll):
        (WebCore::SVGTimer::addNotify):
        (WebCore::SVGTimer::removeNotify):
        * ksvg2/misc/TimeScheduler.cpp:
        (WebCore::TimeScheduler::addTimer):
        (WebCore::TimeScheduler::connectIntervalTimer):
        (WebCore::TimeScheduler::disconnectIntervalTimer):
        (WebCore::TimeScheduler::startAnimations):
        (WebCore::TimeScheduler::toggleAnimations):
        (WebCore::TimeScheduler::timerFired):
        * ksvg2/svg/SVGAnimationElement.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@21572 268f45cc-cd09-0410-ab3c-d52691b4dbfc