https://bugs.webkit.org/show_bug.cgi?id=21304
        Stop using a static wrapper map for WebCore JS bindings

        The static domObjects map was not thread safe.

        * dom/Document.h:
        (WebCore::Document::messagePorts): Added an accessor for JSDocument to iterate over message
        ports.
        (WebCore::Document::xmlHttpRequests): Ditto for XMLHttpRequests.

        * dom/Document.cpp:
        (WebCore::Document::createdXMLHttpRequest):
        (WebCore::Document::destroyedXMLHttpRequest):
        Moved XMLHttpRequest tracking from a global map to Document.

        * GNUmakefile.am:
        * WebCore.pro:
        * WebCore.vcproj/WebCore.vcproj:
        * WebCore.xcodeproj/project.pbxproj:
        * WebCoreSources.bkl:
        * webcore-base.bkl:
        * bindings/DOMProtect.cpp: Removed.
        * bindings/DOMProtect.h: Removed.
        Removed gcProtect(Unprotect)DOMObject - its callers do not have a JSGlobalData reference,
        so they can no longer protect bindings objects.

        * dom/MessagePort.cpp:
        (WebCore::CloseMessagePortTimer::CloseMessagePortTimer):
        (WebCore::CloseMessagePortTimer::fired):
        (WebCore::MessagePort::MessagePort):
        (WebCore::MessagePort::queueCloseEvent):
        (WebCore::MessagePort::setPendingActivity):
        (WebCore::MessagePort::unsetPendingActivity):
        * dom/MessagePort.h:
        (WebCore::MessagePort::hasPendingActivity):
        MessagePort now counts outstanding async events, so JSDocument::mark can decide whether
        to protect it.

        * xml/XMLHttpRequest.h:
        (WebCore::XMLHttpRequest::hasPendingActivity):
        * xml/XMLHttpRequest.cpp:
        (WebCore::XMLHttpRequest::XMLHttpRequest):
        (WebCore::XMLHttpRequest::~XMLHttpRequest):
        (WebCore::XMLHttpRequest::loadRequestAsynchronously):
        (WebCore::XMLHttpRequest::dropProtection):
        (WebCore::XMLHttpRequest::didFinishLoadingPreflight):
        (WebCore::XMLHttpRequest::cancelRequests):
        (WebCore::XMLHttpRequest::detachRequests):
        (WebCore::XMLHttpRequest::setPendingActivity):
        (WebCore::XMLHttpRequest::unsetPendingActivity):
        Moved XMLHttpRequest tracking from a global map to Document. 

        * bindings/js/JSDOMBinding.cpp:
        (WebCore::wrapperSet):
        (WebCore::DOMObjectWrapperMap::mapFor):
        (WebCore::DOMObjectWrapperMap::get):
        (WebCore::DOMObjectWrapperMap::set):
        (WebCore::DOMObjectWrapperMap::remove):
        (WebCore::getCachedDOMObjectWrapper):
        (WebCore::cacheDOMObjectWrapper):
        (WebCore::forgetDOMObject):
        (WebCore::getCachedDOMNodeWrapper):
        (WebCore::forgetDOMNode):
        (WebCore::cacheDOMNodeWrapper):
        (WebCore::markActiveObjectsForDocument):
        * bindings/js/JSDOMBinding.h:
        (WebCore::createDOMObjectWrapper):
        (WebCore::getDOMObjectWrapper):
        Wrapper map is now kept as JSGlobalData::clientData. Also changed debug-only wrapperSet
        to be per-thread (this is slower than going to JSGlobalData, but fast enough for debug).
        WebCore objects can never migrate between threads.

        * bindings/js/JSDocumentCustom.cpp:
        (WebCore::JSDocument::mark):
        Call markActiveObjectsForDocument() from JSDOMBinding.

        * bindings/js/JSCSSRuleCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSCSSValueCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSDOMWindowCustom.cpp:
        (WebCore::markDOMObjectWrapper):
        (WebCore::JSDOMWindow::mark):
        * bindings/js/JSEventCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSEventTarget.cpp:
        (WebCore::toJS):
        * bindings/js/JSHTMLCollectionCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSImageDataCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSMessageChannelCustom.cpp:
        (WebCore::JSMessageChannel::mark):
        * bindings/js/JSMessagePortCustom.cpp:
        (WebCore::JSMessagePort::mark):
        * bindings/js/JSNodeCustom.cpp:
        (WebCore::JSNode::mark):
        * bindings/js/JSSVGPathSegCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSStyleSheetCustom.cpp:
        (WebCore::toJS):
        * bindings/js/JSXMLHttpRequestCustom.cpp:
        (WebCore::JSXMLHttpRequest::mark):
        * bindings/js/JSXMLHttpRequestUploadCustom.cpp:
        (WebCore::JSXMLHttpRequestUpload::mark):
        * bindings/js/ScriptController.cpp:
        (WebCore::ScriptController::finishedWithEvent):
        * bindings/scripts/CodeGeneratorJS.pm:
        Pass a JSGlobalData reference to functions that track JS wrapper objects.

JavaScriptCore:
        * kjs/JSGlobalData.cpp:
        (JSC::JSGlobalData::JSGlobalData):
        (JSC::JSGlobalData::~JSGlobalData):
        (JSC::JSGlobalData::ClientData::~ClientData):
        * kjs/JSGlobalData.h:
        Added a client data member to JSGlobalData. WebCore will use it to store bindings-related
        global data.

        * JavaScriptCore.exp: Export virtual ClientData destructor.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@37190 268f45cc-cd09-0410-ab3c-d52691b4dbfc