Fixes RichTextArea.Formatter.insertHTML for IE permutation

The regression was introduced in
I6ed65ede38b06ce42f51be9613a129a938f0bc048

Bug: issue 4265
Change-Id: I33c1a73c396e75cc91b51d762f523b618ae057ab
(cherry picked from commit 1a6e23cf69c3cd17b74ffa3aff77565f4bb63ad2)
1 file changed