https://bugs.webkit.org/show_bug.cgi?id=34989
        <rdar://problem/7417965> Cursor disappears on scroll bars that are over plugin content

        This fixes event dispatch for both Cocoa and Carbon event models (mouseEntered/mouseExited
        in the former case, and adjustCursor in the latter).

        * Plugins/Hosted/WebHostedNetscapePluginView.mm:
        (-[WebHostedNetscapePluginView handleMouseEntered:]):
        (-[WebHostedNetscapePluginView handleMouseExited:]):
        * Plugins/WebBaseNetscapePluginView.h:
        * Plugins/WebBaseNetscapePluginView.mm:
        (-[WebBaseNetscapePluginView handleMouseEntered:]):
        (-[WebBaseNetscapePluginView handleMouseExited:]):
        * Plugins/WebNetscapePluginView.h:
        * Plugins/WebNetscapePluginView.mm:
        (-[WebNetscapePluginView handleMouseEntered:]):
        (-[WebNetscapePluginView handleMouseExited:]):
        AppKit cannot reliably dispatch events for overlapping views. We are now asking WebCore to
        notify plug-in views of mouse entered/exited as part of DOM event dispatch.

        * WebCoreSupport/WebFrameLoaderClient.mm: (NetscapePluginWidget::handleEvent): Besides
        mouse moved, dispatch plugin mouse entered/exit events in HTMLPlugInElement default event
        handler. Other mouse events are passed down by EventHandler.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@54829 268f45cc-cd09-0410-ab3c-d52691b4dbfc