RenderText::m_text is never a null string. Some of the RenderText code already knows this. textLength() should know it too.
Created attachment 214273 [details] Patch
Comment on attachment 214273 [details] Patch Clearing flags on attachment: 214273 Committed r157456: <http://trac.webkit.org/changeset/157456>
All reviewed patches have been landed. Closing bug.