Reviewed by Tony Chang.

        dumpAsText conversion: editing/deleting/delete-by-word-001.html and delete-by-word-002.html
        https://bugs.webkit.org/show_bug.cgi?id=48130

        Converted editing/deleting/delete-by-word-001.html and delete-by-word-002.html to dumpAsText tests
        by replacing calls to runEditingTest by runDumpAsTextEditingTest.

        * editing/deleting/delete-by-word-001-expected.txt: Added.
        * editing/deleting/delete-by-word-001.html:
        * editing/deleting/delete-by-word-002-expected.txt: Added.
        * editing/deleting/delete-by-word-002.html:
        * platform/chromium-linux/editing/deleting/delete-by-word-001-expected.checksum: Removed.
        * platform/chromium-linux/editing/deleting/delete-by-word-001-expected.png: Removed.
        * platform/chromium-linux/editing/deleting/delete-by-word-002-expected.checksum: Removed.
        * platform/chromium-linux/editing/deleting/delete-by-word-002-expected.png: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-001-expected.checksum: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-001-expected.png: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-001-expected.txt: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-002-expected.checksum: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-002-expected.png: Removed.
        * platform/chromium-win/editing/deleting/delete-by-word-002-expected.txt: Removed.
        * platform/gtk/editing/deleting/delete-by-word-001-expected.txt: Removed.
        * platform/mac/editing/deleting/delete-by-word-001-expected.checksum: Removed.
        * platform/mac/editing/deleting/delete-by-word-001-expected.png: Removed.
        * platform/mac/editing/deleting/delete-by-word-001-expected.txt: Removed.
        * platform/mac/editing/deleting/delete-by-word-002-expected.checksum: Removed.
        * platform/mac/editing/deleting/delete-by-word-002-expected.png: Removed.
        * platform/mac/editing/deleting/delete-by-word-002-expected.txt: Removed.
        * platform/qt/editing/deleting/delete-by-word-001-expected.checksum: Removed.
        * platform/qt/editing/deleting/delete-by-word-001-expected.png: Removed.
        * platform/qt/editing/deleting/delete-by-word-001-expected.txt: Removed.
        * platform/qt/editing/deleting/delete-by-word-002-expected.checksum: Removed.
        * platform/qt/editing/deleting/delete-by-word-002-expected.png: Removed.
        * platform/qt/editing/deleting/delete-by-word-002-expected.txt: Removed.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72637 268f45cc-cd09-0410-ab3c-d52691b4dbfc