WebCore:

WebCore:

        Reviewed by Darin.

        <rdar://problem/5432254> GoogleDocs: A hang occurs when applying list style to selected table

        * editing/DeleteSelectionCommand.cpp:
        (WebCore::DeleteSelectionCommand::handleGeneralDelete): If the position
        that marked the start of the range to delete has been removed from the
        document, and it was inside the node that holds the position that marks
        the end of the range to delete, don't remove any children of that node,
        because we don't know how many to remove.  For example, if the end is
        [a, 5] and the start was in some descendant of a and was removed, don't
        remove any of the children of a.  We will now refuse to remove some content
        incorrectly, but that's less dangerous than removing content incorrectly.
        Long term we need to update these positions as we remove content from the
        document, but that seems like a more risky change.  Added a testcase.
        * editing/InsertListCommand.cpp:
        (WebCore::InsertListCommand::modifyRange): If the end of the selection to
        modify is just after a table, and if the start of the selection is inside
        that table, the last paragraph that we'll want modify is the last one inside
        the table, not the paragraph that contains the table itself. Adjust
        startOfLastParagraph here to avoid infinite recursion.

LayoutTests:

        Reviewed by Darin.

        <rdar://problem/5432254> GoogleDocs: A hang occurs when applying list style to selected table

        * editing/execCommand/5432254-1.html: Added.
        * editing/execCommand/5432254-2.html: Added.
        * platform/mac/editing/execCommand: Added.
        * platform/mac/editing/execCommand/5432254-1-expected.checksum: Added.
        * platform/mac/editing/execCommand/5432254-1-expected.png: Added.
        * platform/mac/editing/execCommand/5432254-1-expected.txt: Added.
        * platform/mac/editing/execCommand/5432254-2-expected.checksum: Added.
        * platform/mac/editing/execCommand/5432254-2-expected.png: Added.
        * platform/mac/editing/execCommand/5432254-2-expected.txt: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@25229 268f45cc-cd09-0410-ab3c-d52691b4dbfc