LayoutTests:

LayoutTests:

        Reviewed by Harrison.

        <rdar://problem/5300379> Mail hung on option-delete

        * editing/deleting/5300379-expected.checksum: Added.
        * editing/deleting/5300379-expected.png: Added.
        * editing/deleting/5300379-expected.txt: Added.
        * editing/deleting/5300379.html: Added.

WebCore:

        Reviewed by Harrison.

        <rdar://problem/5300379> Mail hung on option-delete

        We were starting backward iteration at [container, 0] and
        emitting for container over and over.

        * editing/TextIterator.cpp:
        (WebCore::SimplifiedBackwardsTextIterator::advance): Don't
        emit characters for a node if we're starting iteration at
        [container, 0].  Don't emit characters for exiting containers
        if we've already done so.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@24245 268f45cc-cd09-0410-ab3c-d52691b4dbfc