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        Reviewed by Eric Seidel.

        https://bugs.webkit.org/show_bug.cgi?id=25002
        When inserting a new paragraph, avoid nesting empty divs.  When
        pasting near the end of a paragraph, this prevents each paste
        command for getting nested one level deeper.

        Three paste tests have been rebaselined since this causes the pasted
        content to be outside the last div instead of inside.  E.g.,
        <div>foo<div>bar</div>[pasted content]</div> is now
        <div>foo<div>bar</div></div><div>[pasted content]</div>

        The new test verifies this behavior.

        * editing/inserting/paragraph-outside-nested-divs-expected.txt: Added.
        * editing/inserting/paragraph-outside-nested-divs.html: Added.
        * platform/mac/editing/pasteboard/paste-text-012-expected.txt:
        * platform/mac/editing/pasteboard/paste-text-013-expected.txt:
        * platform/mac/editing/pasteboard/paste-text-017-expected.txt:
2010-02-04  Tony Chang  <tony@chromium.org>

        Reviewed by Eric Seidel.

        https://bugs.webkit.org/show_bug.cgi?id=25002
        When inserting a new paragraph, avoid nesting empty divs.  When
        pasting near the end of a paragraph, this prevents each paste
        command for getting nested one level deeper.

        Test: editing/inserting/paragraph-outside-nested-divs.html

        * editing/InsertParagraphSeparatorCommand.cpp:
        (WebCore::highestVisuallyEquivalentDiv):
        (WebCore::InsertParagraphSeparatorCommand::doApply):

git-svn-id: svn://svn.chromium.org/blink/trunk@54395 bbb929c8-8fbe-4397-9dbb-9b2b20218538