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        Reviewed by Dan Bernstein.

        REGRESSION (r58665): Infinite recursion in Position::getInlineBoxAndOffset()
        https://bugs.webkit.org/show_bug.cgi?id=39946

        * editing/selection/mixed-editability-12-expected.txt: Added.
        * editing/selection/mixed-editability-12.html: Added.
2010-05-31  Tony Chang  <tony@chromium.org>

        Reviewed by Dan Bernstein.

        REGRESSION (r58665): Infinite recursion in Position::getInlineBoxAndOffset()
        https://bugs.webkit.org/show_bug.cgi?id=39946

        r58665 added an infinite recursion check, but didn't take into consideration recursion between two
        Positions.  This adds a check for when
        downstreamIgnoringEditingBoundaries(p1) == p2 and upstreamIgnoringEditingBoundaries(p2) == p1

        Test: editing/selection/mixed-editability-12.html

        * dom/Position.cpp:
        (WebCore::Position::getInlineBoxAndOffset):

git-svn-id: svn://svn.chromium.org/blink/trunk@60459 bbb929c8-8fbe-4397-9dbb-9b2b20218538