Fix: setExtractedText partial span change handling.

ExtractedText represents a partial text change when
partialStartOffset and partialEndOffset are set.
TextView#setExtractedText handles partial updates correctly when text
is changed, but it didn't handle them for span updates when text is
not changed.

Bug: 27635763
Change-Id: I7dc2ad0c0b7f1867738be3d6d40ea36d0d9a3e7e
1 file changed