At John's suggestion, renamed a private WebFrame method and tightened up some of the redirect logic I recently touched.

        * WebView/WebFramePrivate.h:
        Renamed -_clientRedirectCancelled: to -_clientRedirectCancelledOrFinished:, since we call this both when a redirect is
        cancelled and when a redirect is successfully committed.
        * WebCoreSupport/WebFrameBridge.m:
        (-[WebFrameBridge reportClientRedirectCancelled:]):
        Call renamed WebFrame method.
        * WebView/WebFrame.m:
        Added sentRedirectNotification flag to WebFramePrivate.  This flag is set when we notify the frame load delegate that a
        redirect will occur.  We check this flag when committing a provisional load to ensure that the frame load delegate is
        notified that the redirect finished.
        (-[WebFrame _commitProvisionalLoad:]):
        After committing a provisional load, make sure that the frame load delegate is notified that there is no longer a pending
        redirect.
        (-[WebFrame _clientRedirectedTo:delay:fireDate:lockHistory:isJavaScriptFormAction:]):
        Set the new sentRedirectNotification flag.
        (-[WebFrame _clientRedirectCancelledOrFinished:]):
        Renamed method.
        Clear the sentRedirectNotification flag.
        (-[WebFrame _continueLoadRequestAfterNavigationPolicy:formState:]):
        Call renamed method.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@13459 268f45cc-cd09-0410-ab3c-d52691b4dbfc