2011-01-21 Charlie Reis <creis@chromium.org>

      Reviewed by Darin Fisher.

        Crash in WebCore::HistoryController::itemsAreClones
        https://bugs.webkit.org/show_bug.cgi?id=52819

        Adds sanity checks to help diagnose the crash.

        * loader/HistoryController.cpp:
2011-01-21  Charlie Reis  <creis@chromium.org>

        Reviewed by Darin Fisher.

        Crash in WebCore::HistoryController::itemsAreClones
        https://bugs.webkit.org/show_bug.cgi?id=52819

        Adds sanity checks to help diagnose the crash.

        * src/WebFrameImpl.cpp:

git-svn-id: svn://svn.chromium.org/blink/trunk@76406 bbb929c8-8fbe-4397-9dbb-9b2b20218538