Jean Chalard 89bd776cf6 Use user-history bigrams when no input if available.
This also fixes a small inconsistency upon clicking on whitespace
twice in a row.
Also add some unit tests for an introduced and an existing method.

Change-Id: I1be2fb53c9624f4d0f5299009632cb4384fdfc15
2011-04-22 15:46:23 +09:00
..
2011-01-05 11:31:58 +09:00
2010-04-05 09:47:36 -07:00
2010-04-05 09:47:36 -07:00