Fix <rdar://5517707> Crash on wptv.wp.pl when "make bigger" button is clicked

Fix <rdar://5517707> Crash on wptv.wp.pl when "make bigger" button is clicked

WebCore:

        Fix <rdar://5517707> Crash on wptv.wp.pl when "make bigger" button is clicked

        Windows Media Player has a modal message loop that will deliver
        messages to us at inappropriate times and we will crash if we handle
        them when they are delivered. In PluginViewWin, we add a quirk for
        Media Player to set a flag whenever we give the plugin a chance to
        execute code, and in SharedTimerWin we check if the plugin is
        executing code and repost messages if so.

        Reviewed by Anders.

        * platform/win/SharedTimerWin.cpp:
        (WebCore::TimerWindowWndProc): Repost messages if we're calling a
        plugin.
        * plugins/win/PluginViewWin.cpp: Surround all calls to the plugin with
        setCallingPlugin(true/false).
        (WebCore::PluginViewWin::updateWindow):
        (WebCore::PluginViewWin::dispatchNPEvent):
        (WebCore::PluginViewWin::setNPWindowRect):
        (WebCore::PluginViewWin::start):
        (WebCore::PluginViewWin::stop):
        (WebCore::PluginViewWin::performRequest):
        (WebCore::PluginViewWin::bindingInstance):
        (WebCore::PluginViewWin::determineQuirks):
        (WebCore::PluginViewWin::setCallingPlugin): Added.
        (WebCore::PluginViewWin::isCallingPlugin): Added.
        * plugins/win/PluginViewWin.h: Added a new quirk.

WebKit/win:

        Fix <rdar://5517707> Crash on wptv.wp.pl when "make bigger" button is clicked

        Reviewed by Anders.

        * WebView.cpp:
        (WebViewWndProc): Repost paint messages and ignore all other messages
        when we're calling a plugin.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@28700 268f45cc-cd09-0410-ab3c-d52691b4dbfc