Reviewed by Dan Bernstein.

        Editing a word with misspell or autocorrection underline should remove the underline when the editing changes the word.
        https://bugs.webkit.org/show_bug.cgi?id=48078
        <rdar://problem/8579155>

        * platform/mac-leopard/Skipped: New tests don't apply to this platform.
        * platform/mac-snowleopard/Skipped: Ditto.
        * platform/mac-tiger/Skipped: Ditto.
        * platform/mac-wk2/Skipped: Ditto.
        * platform/mac/editing/spelling/autocorrection-delete-expected.checksum: Updated expected test result.
        * platform/mac/editing/spelling/autocorrection-delete-expected.png: Ditto.
        * platform/mac/editing/spelling/editing-multiple-words-with-markers-expected.txt: Added.
        * platform/mac/editing/spelling/editing-multiple-words-with-markers.html: Added.
        * platform/mac/editing/spelling/editing-word-with-marker-1-expected.txt: Added.
        * platform/mac/editing/spelling/editing-word-with-marker-1.html: Added.
        * platform/mac/editing/spelling/editing-word-with-marker-2-expected.txt: Added.
        * platform/mac/editing/spelling/editing-word-with-marker-2.html: Added.
2010-10-28  Jia Pu  <jpu@apple.com>

        Reviewed by Dan Bernstein.

        Editing a word with misspell or autocorrection underline should remove the underline when the editing changes the word.
        https://bugs.webkit.org/show_bug.cgi?id=48078
        <rdar://problem/8579155>

        Tests: platform/mac/editing/spelling/editing-multiple-words-with-markers.html
               platform/mac/editing/spelling/editing-word-with-marker-1.html
               platform/mac/editing/spelling/editing-word-with-marker-2.html

        This patch is part of on-going improvement of autocorrection feature on Mac OS X. When an editing
        occurs, if it affects words (by deleting/inserting characters, spliting word, merging words) that
        have Spelling and/or CorrectionIndicator markers, we want to remove the markers. If subsequntial
        spelling checking finds spelling error in newlly formed words, it will add the markers back in.

        * dom/DocumentMarker.h: Changed MarkerType to bit masks to make search multiple types easier.

        * dom/DocumentMarkerController.cpp: Refactored two removeMarkers() methods to support remove
          markers with specific type from a node.
        (WebCore::DocumentMarkerController::removeMarkers): Changed signature to remove marker with specific type.
        (WebCore::DocumentMarkerController::removeMarkersFromMarkerMapVectorPair): Refactoring.
        (WebCore::DocumentMarkerController::hasMarkers): Convenience method to search markers in range.

        * dom/DocumentMarkerController.h: Added new methods and matched new signature of removeMarkers().

        * editing/Editor.cpp:
        (WebCore::Editor::respondToChangedContents): Remove existing markers if the change formed new word.
        (WebCore::Editor::cut): Remove markers on words that will be modified by this editing.
        (WebCore::Editor::paste): Ditto.
        (WebCore::Editor::pasteAsPlainText): Ditto.
        (WebCore::Editor::removeSpellAndCorrectionMarkersFromWordsToBeEdited): Main logic for removing
          markers on words affected by editing.

        * editing/Editor.h: Added removeSpellAndCorrectionMarkersFromWordsToBeEdited().  Added
          REMOVE_MARKERS_UPON_EDITING and SUPPORT_AUTOCORRECTION_PANEL macro to improve readability.

        * editing/TypingCommand.cpp:
        (WebCore::TypingCommand::insertText): Remove markers on words that will be modified by this editing.
        (WebCore::TypingCommand::deleteKeyPressed): Ditto.
        (WebCore::TypingCommand::forwardDeleteKeyPressed): Ditto.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@70826 268f45cc-cd09-0410-ab3c-d52691b4dbfc