Two separate issues here:
- The results of the spell checker may be identical to the one set by the IME. Since
we merge the spans, the entries are duplicated. Filter spell checker results to avoid
these duplicates.
- When the text is saved on rotation, the spans are saved and restored. Since we start
a new spell check when the window is attached, it also doubles the size.
Change-Id: I21e1a5ae1b264bc97f44d762e4589bf520c6c19c
176cd0d3b4