Reviewed by Adele.

    Reviewed by Adele.

        - replaced receivedRedirect with new willSendRequest delegate
        - removed most mac-specific loader functions
        - use ResourceResponse more in loader code

        * WebCore.xcodeproj/project.pbxproj: Add new files.
        * bridge/mac/WebCoreFrameBridge.mm:
        (-[WebCoreFrameBridge getData:andResponse:forURL:]): Adapted
        for CachedResource method renames.
        (-[WebCoreFrameBridge getAllResourceDatas:andResponses:]):
        Ditto.
        * loader/CachedCSSStyleSheet.cpp:
        (WebCore::CachedCSSStyleSheet::checkNotify): simplified
        based on ResourceResponse
        * loader/CachedImage.cpp:
        (WebCore::CachedImage::createImage): adapt for ResourceResponse
        * loader/CachedResource.cpp:
        (WebCore::CachedResource::CachedResource): store a ResourceResponse;
        platform response is now called platformResponse and expiration date
        is removed.
        (WebCore::CachedResource::~CachedResource): ditto
        (WebCore::CachedResource::isExpired): ditto
        * loader/CachedResource.h:
        (WebCore::CachedResource::platformResponse): ditto
        (WebCore::CachedResource::setResponse): ditto
        (WebCore::CachedResource::canDelete): ditto
        * loader/LoaderFunctions.h:
        * loader/loader.cpp:
        (WebCore::Loader::receivedResponse): Adjusted for renames.
        (WebCore::Loader::didReceiveResponse): Store whole ResourceResponse
        in the CachedResource.
        * loader/loader.h:
        * loader/mac/FormDataStream.h:
        * loader/mac/FormDataStream.m:
        (WebCore::getStreamFormDatas): Rearranged things so it's
        possible to get a FormData back out of a form data stream.
        (WebCore::formCreate): ditto
        (WebCore::formFinalize): ditto
        (WebCore::httpBodyFromStream): ditto
        * loader/mac/ImageDocumentMac.mm:
        (WebCore::finishImageLoad): s/response/platformResponse/
        * loader/mac/LoaderFunctionsMac.mm:
        (WebCore::CheckCacheObjectStatus): ditto
        (WebCore::CachedResource::setPlatformResponse): ditto
        * loader/mac/SubresourceLoaderMac.mm:
        (WebCore::SubresourceLoader::willSendRequest): send redirect
        to client appropriately
        * platform/network/ResourceHandle.h:
        * platform/network/ResourceHandleClient.h:
        (WebCore::ResourceHandleClient::willSendRequest): new entry
        point for SubresourceLoader, dispatch to client.
        * platform/network/ResourceRequest.h:
        (WebCore::ResourceRequest::allowHTTPCookies): implemented
        (WebCore::ResourceRequest::setAllowHTTPCookies): ditto
        * platform/network/ResourceResponse.h:
        (WebCore::ResourceResponse::ResourceResponse): initialize expiration
        date(!)
        * platform/network/cf/FormDataStreamCFNet.cpp: Added.
        (WebCore::getStreamFormDatas): Added this, ported from NSURL version.
        (WebCore::openNextStream): ditto
        (WebCore::formCreate): ditto
        (WebCore::formFinalize): ditto
        (WebCore::formCanRead): ditto
        (WebCore::formEventCallback): ditto
        (WebCore::setHTTPBody): ditto
        (WebCore::httpBodyFromStream): ditto
        * platform/network/cf/FormDataStreamCFNet.h: Added.
        * platform/network/cf/ResourceHandleCFNet.cpp:
        (WebCore::willSendRequest): implemented
        (WebCore::ResourceHandle::start): use new ResourceRequest stuff
        * platform/network/cf/ResourceResponseCFNet.cpp:
        (WebCore::getResourceResponse): do nothing for a null response
        * platform/network/mac/ResourceHandleMac.mm:
        (WebCore::ResourceHandle::willSendRequest): Implemented; dispatch to client.
        * platform/network/mac/ResourceRequestMac.h: Added.
        * platform/network/mac/ResourceRequestMac.mm: Added.
        (WebCore::getResourceRequest): Added way to convert an NSURLRequest
        to a ResourceRequest.
        (WebCore::nsURLRequest): Opposite of the above.
        * platform/network/cf/ResourceRequestCFNet.h: Added.
        * platform/network/cf/ResourceRequestCFNet.cpp: Added.
        (WebCore::getResourceRequest): Added way to convert an CFURLRequest
        to a ResourceRequest.
        (WebCore::cfURLRequest): Opposite of the above.
        * xml/xmlhttprequest.cpp:
        (WebCore::XMLHttpRequest::willSendRequest): Renamed from receivedRedirect,
        adjusted.
        * xml/xmlhttprequest.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@17595 268f45cc-cd09-0410-ab3c-d52691b4dbfc