Reviewed by Brady.

    Reviewed by Brady.

        - convert more WebFrameLoader stuff to be independent of WebFrame

        * Loader/WebFrameLoader.h:
        * Loader/WebFrameLoader.m:
        (-[WebFrameLoader stopLoadingSubframes]):
        (-[WebFrameLoader _receivedMainResourceError:complete:]):
        (-[WebFrameLoader loadURL:referrer:loadType:target:triggeringEvent:form:formValues:]):
        (-[WebFrameLoader closeOldDataSources]):
        (-[WebFrameLoader isHostedByObjectElement]):
        (-[WebFrameLoader isLoadingMainFrame]):
        (-[WebFrameLoader loadDocumentLoader:withLoadType:formState:]):
        (-[WebFrameLoader transitionToCommitted:]):
        (-[WebFrameLoader checkLoadCompleteForThisFrame]):
        (-[WebFrameLoader continueLoadRequestAfterNewWindowPolicy:frameName:formState:]):
        (-[WebFrameLoader loadRequest:inFrameNamed:]):
        (-[WebFrameLoader postWithURL:referrer:target:data:contentType:triggeringEvent:form:formValues:]):
        (-[WebFrameLoader actionInformationForNavigationType:event:originalURL:]):
        (-[WebFrameLoader client]):
        * Loader/WebFrameLoaderClient.h:
        * WebView/WebDataSource.m:
        (-[WebDataSource _webView]):
        (-[WebDataSource webFrame]):
        * WebView/WebFrame.m:
        (-[WebFrame _dispatchCreateWebViewWithRequest:]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@16960 268f45cc-cd09-0410-ab3c-d52691b4dbfc