LayoutTests:

LayoutTests:

        Reviewed by adele

        <rdar://problem/5078739>
        Crash in in ReplaceSelectionCommand if the fragment contains only a style span

        * editing/pasteboard/5078739-expected.txt: Added.
        * editing/pasteboard/5078739.html: Added.

WebCore:

        Reviewed by adele

        <rdar://problem/5078739>
        Crash in in ReplaceSelectionCommand if the fragment contains only a style span

        * editing/ReplaceSelectionCommand.cpp:
        (WebCore::ReplaceSelectionCommand::doApply): Check
        for an empty fragment after removing a redundant
        style span instead of before.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@20456 268f45cc-cd09-0410-ab3c-d52691b4dbfc