https://bugs.webkit.org/show_bug.cgi?id=67870

        Reviewed by Sam Weinig.

        Make ResourceHandle{Mac,CFNet} use context to access storage session.

        * WebCore.exp.in: We track less session state in WebCore now, so we need fewer
        exports.

        * loader/FrameNetworkingContext.h: Added an OVERRIDE.

        * page/Settings.cpp: (WebCore::Settings::setPrivateBrowsingEnabled): WebCore
        no longer keeps track of a globally enabled private CFNetwork storage session.

        * platform/CookiesStrategy.h: Added defaultCookieStorage(). Some cookie jar methods
        don't have a NetworkingContext pointer, and have to use whatever a client expects
        them to do. Perhaps we should move those methods away from WebCore eventually.

        * platform/network/NetworkingContext.h: Added storageSession().

        * platform/network/ResourceHandle.h: Removed sttaic methods for dealing with global
        sessions.

        * platform/network/ResourceHandleInternal.h: Added m_storageSession. We need to
        remember it post-creation to do things in willSendRequest. Alternatively, we could
        keep a reference to NetworkingContext itself.

        * platform/network/cf/CookieJarCFNet.cpp:
        (WebCore::setCookiesFromDOM): currentCFHTTPCookieStorage now needs a context,
        there is no globally current one any more. Also, we don't really expect cookie
        stirage to be 0 when not using NSURLConnection.
        (WebCore::cookiesForDOM): Ditto.
        (WebCore::cookieRequestHeaderFieldValue): Ditto.
        (WebCore::cookiesEnabled): Ditto.
        (WebCore::getRawCookies): Ditto.
        (WebCore::deleteCookie): Ditto.
        (WebCore::getHostnamesWithCookies): Ditto.
        (WebCore::deleteCookiesForHostname): Ditto.
        (WebCore::deleteAllCookies): Ditto.
        * platform/network/cf/CookieStorageCFNet.cpp:
        (WebCore::currentCFHTTPCookieStorage): Use a context.
        (WebCore::defaultCFHTTPCookieStorage): Except for Windows-only override session,
        this is implemented in a strategy.
        (WebCore::overridenCookieStorage): Exposed the override for WebKit use on Windows.

        * platform/network/cf/CookieStorageCFNet.h: Ditto.

        * platform/network/cf/ResourceHandleCFNet.cpp:
        (WebCore::willSendRequest): Use storage session from the context, not global one.
        (WebCore::makeFinalRequest): Merged this into the only remaining caller. This
        function didn't really make any sense on its own.
        (WebCore::shouldRelaxThirdPartyCookiePolicy): Factored out of createCFURLConnection
        to match Mac.
        (WebCore::ResourceHandle::createCFURLConnection): While merging makeFinalRequest()
        in, removed some seemingly nonsensical code that was getting and immediately re-applying
        cookie storage accept policy.
        (WebCore::ResourceHandle::start): Store context->storageSession() for use in willSendRequest.
        (WebCore::ResourceHandle::willSendRequest): Apply the stored session, not global one.
        (WebCore::ResourceHandle::storageSession): An accessor for static methods that cannot
        access "d".
        (WebCore::ResourceHandle::loadResourceSynchronously): Store context->storageSession() for use in willSendRequest.
        (WebCore::ResourceHandle::willLoadFromCache): Don't call makeFinalRequest here.
        It didn't match Mac, and nothing in makeFinalRequest should have affected the result.

        * platform/network/cf/ResourceRequestCFNet.cpp: (WebCore::ResourceRequest::doUpdatePlatformRequest):
        This function used to apply current storage session to every request for no apparent
        reason.

        * platform/network/mac/CookieJarMac.mm:
        (WebCore::cookiesForDOM): Changed to pass context to currentCFHTTPCookieStorage.
        (WebCore::cookieRequestHeaderFieldValue): Ditto.
        (WebCore::setCookiesFromDOM): Ditto.
        (WebCore::cookiesEnabled): Ditto.
        (WebCore::getRawCookies): Ditto.
        (WebCore::deleteCookie): Ditto.
        (WebCore::getHostnamesWithCookies): Ditto.
        (WebCore::deleteCookiesForHostname): Ditto.
        (WebCore::deleteAllCookies): Ditto.
        * platform/network/mac/ResourceHandleMac.mm:
        (WebCore::shouldRelaxThirdPartyCookiePolicy): There was no need to special case
        null currentCFHTTPCookieStorage, WKSI handles that internally. Added a context
        argument, so that the function can access current session.
        (WebCore::ResourceHandle::createNSURLConnection): Updated for other code changes.
        (WebCore::ResourceHandle::start): Store context->storageSession() for use in willSendRequest.
        (WebCore::ResourceHandle::willLoadFromCache): Style fix.
        (WebCore::ResourceHandle::loadResourceSynchronously): Store context->storageSession()
        for use in willSendRequest. 
        (WebCore::ResourceHandle::willSendRequest): Use stored session, not global one.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@134960 268f45cc-cd09-0410-ab3c-d52691b4dbfc