Reviewed by Anders and Oliver.

    Reviewed by Anders and Oliver.

        - move a bunch of WebFrame methods from the Internal category to the WebFrameLoader protocol

        * Loader/WebFrameLoader.h:
        * Loader/WebFrameLoader.m:
        (-[WebFrameLoader loadRequest:]):
        (-[WebFrameLoader loadRequest:inFrameNamed:]):
        * Loader/WebFrameLoaderClient.h:
        * WebView/WebFrame.m:
        (-[WebFrame loadRequest:]):
        (-[WebFrame _dispatchDidCommitLoadForFrame]):
        (-[WebFrame _hasFrameView]):
        (-[WebFrame _frameLoadCompleted]):
        (-[WebFrame _restoreScrollPositionAndViewState]):
        (-[WebFrame _setTitle:forURL:]):
        (-[WebFrame _createDocumentLoaderWithRequest:]):
        (-[WebFrame _prepareForDataSourceReplacement]):
        (-[WebFrame _didFinishLoad]):
        (-[WebFrame _addHistoryItemForFragmentScroll]):
        (-[WebFrame _shouldTreatURLAsSameAsCurrent:]):
        (-[WebFrame _provisionalLoadStarted]):
        * WebView/WebFrameInternal.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@16959 268f45cc-cd09-0410-ab3c-d52691b4dbfc