More loader tweaks.

        * platform/ResourceLoader.h:
        * platform/ResourceLoaderInternal.h:
        (WebCore::ResourceLoaderInternal::ResourceLoaderInternal):
        * platform/win/TemporaryLinkStubs.cpp:
        (WebCore::ResourceLoader::newHTTPRequest):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16840 268f45cc-cd09-0410-ab3c-d52691b4dbfc