Fix for performance regression. My original patch added a signal for passing the...

	Fix for performance regression. My original patch added a signal for passing the data of a resource to its WebCore cache object. This patch passes the data with the preexisting "finished" symbol so we make less calls.
	Fixed: <rdar://problem/3903173> REGRESSION (172-TOT): assertion failure and crash in slotAllData logging into hotmail account

        Reviewed by rjw.

        * khtml/misc/loader.cpp:
        (Loader::servePendingRequests): pass data param to slotFinished, removed allData signal
        (Loader::slotFinished): take data param
        * khtml/misc/loader.h:
        * kwq/KWQKJobClasses.h:
        * kwq/KWQKJobClasses.mm:
        (KIO::TransferJob::TransferJob): have m_result take a data param, removed m_allData
        (KIO::TransferJob::emitResult): take data param and pass it
        * kwq/KWQResourceLoader.mm:
        (-[KWQResourceLoader finishJobAndHandle:]): take data param and pass it
        (-[KWQResourceLoader cancel]): pass nil for data
        (-[KWQResourceLoader reportError]): ditto
        (-[KWQResourceLoader finishWithData:]): pass data
        * kwq/KWQSlot.mm:
        (KWQSlot::KWQSlot): pass data param to slotFinished
        (KWQSlot::call): added support for slotFinished_Loader, removed slotAllData

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8111 268f45cc-cd09-0410-ab3c-d52691b4dbfc