LayoutTests:

LayoutTests:

        Reviewed by John Sullivan.

        - test for http://bugzilla.opendarwin.org/show_bug.cgi?id=8952
          <rdar://problem/4575185>
          REGRESSION: crash on drag of highlighted Google custom home page modules

        * fast/dynamic/move-node-with-selection-expected.checksum: Added.
        * fast/dynamic/move-node-with-selection-expected.png: Added.
        * fast/dynamic/move-node-with-selection-expected.txt: Added.
        * fast/dynamic/move-node-with-selection.html: Added.

WebCore:

        Reviewed by John Sullivan.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=8952
          <rdar://problem/4575185>
          REGRESSION: crash on drag of highlighted Google custom home page modules

        Test: fast/dynamic/move-node-with-selection.html

        * editing/SelectionController.cpp: (WebCore::SelectionController::nodeWillBeRemoved):
        Call updateRendering before calling clearSelection(), since it's important to do any
        work beforehand, and there are calls inside clearSelection that will indirectly do an
        updateRendering. Also change code to make fewer assumptions about object lifetime.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15459 268f45cc-cd09-0410-ab3c-d52691b4dbfc