Looks like the methods in nsHTML***Element calls nsTextControlFrame which gets editor from nsHTML***Element and takes the necessary data from the editor. There shouldn't be no need for the nsTextControlFrame part
OS: Linux → All
Hardware: x86_64 → All
Version: unspecified → Trunk
Hmm, well, the editor gets the selection information from layout. Does bug 674820 cover what you were aiming for here?
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