Reviewed by harrison
        
        <rdar://problem/4806874>
        Missing background image after paste

        Checking in new expected results for fixes:
        * editing/inserting/insert-3851164-fix-expected.checksum:
        * editing/inserting/insert-3851164-fix-expected.png:
        * editing/selection/drag-in-iframe-expected.checksum:
        * editing/selection/drag-in-iframe-expected.png:

        Same, but also removing an outdated comment about a bug:
        * editing/pasteboard/paste-text-019-expected.checksum:
        * editing/pasteboard/paste-text-019-expected.png:
        * editing/pasteboard/paste-text-019-expected.txt:
        * editing/pasteboard/paste-text-019.html:
        
        Added:
        * editing/pasteboard/4806874-expected.checksum: Added.
        * editing/pasteboard/4806874-expected.png: Added.
        * editing/pasteboard/4806874-expected.txt: Added.
        * editing/pasteboard/4806874.html: Added.
        
        Equivalent render trees:        
        * editing/inserting/insert-3907422-fix-expected.txt:
        * editing/pasteboard/paste-text-011-expected.txt:
        * editing/pasteboard/paste-text-015-expected.txt:

WebCore:

        Reviewed by harrison
        
        <rdar://problem/4806874>
        Missing background image after paste
        
        * editing/markup.cpp:
        (WebCore::createMarkup): If the body is fully selected, add a 
        div with its CSS properties to the markup.  Migrated a use of 
        enclosingBlockFlowElement to enclosingBlock to fix an infinite 
        loop when pasting <div><input></div>.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@17772 268f45cc-cd09-0410-ab3c-d52691b4dbfc