2009-03-04  Antti Koivisto  <antti@apple.com>

        Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=24359
        Repaint throttling mechanism
        
        Set ENABLE_REPAINT_THROTTLING to 0 by default.

        * wtf/Platform.h:

WebCore:

2009-03-04  Antti Koivisto  <antti@apple.com>

        Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=24359
        Repaint throttling mechanism
        
        Excessive repainting can slow down page loadind. This implements a timer
        based throttling mechanism. It is behind ENABLE(REPAINT_THROTTLING) and not 
        enabled by default.

        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::checkCompleted):
        * page/EventHandler.cpp:
        (WebCore::EventHandler::dispatchDragEvent):
        (WebCore::EventHandler::dispatchMouseEvent):
        (WebCore::EventHandler::keyEvent):
        (WebCore::EventHandler::handleTextInputEvent):
        * page/FrameView.cpp:
        (WebCore::FrameView::FrameView):
        (WebCore::FrameView::reset):
        (WebCore::FrameView::repaintContentRectangle):
        (WebCore::FrameView::beginDeferredRepaints):
        (WebCore::FrameView::endDeferredRepaints):
        (WebCore::FrameView::checkStopDelayingDeferredRepaints):
        (WebCore::FrameView::doDeferredRepaints):
        (WebCore::FrameView::updateDeferredRepaintDelay):
        (WebCore::FrameView::resetDeferredRepaintDelay):
        (WebCore::FrameView::adjustedDeferredRepaintDelay):
        (WebCore::FrameView::deferredRepaintTimerFired):
        (WebCore::FrameView::paintContents):
        * page/FrameView.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@41431 268f45cc-cd09-0410-ab3c-d52691b4dbfc