LayoutTests:

LayoutTests:

        Reviewed by Darin.

        - test for http://bugzilla.opendarwin.org/show_bug.cgi?id=8594
          REGRESSION: Exception on closing a page containing (just) an mp3

        * plugins/pluginDocumentView-deallocated-dataSource-expected.txt: Added.
        * plugins/pluginDocumentView-deallocated-dataSource.html: Added.
        * plugins/resources: Added.
        * plugins/resources/orange.mov: Added.

WebKit:

        Reviewed by Darin.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=8594
          REGRESSION: Exception on closing a page containing (just) an mp3

        Test: plugins/pluginDocumentView-deallocated-dataSource.html

        * Plugins/WebPluginDocumentView.m:
        (-[WebPluginDocumentView dealloc]): Release the dataSource.
        (-[WebPluginDocumentView setDataSource:]): Retain the dataSource.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@14201 268f45cc-cd09-0410-ab3c-d52691b4dbfc