Put SuppressionDictionary and UserDictionary into mozc::dictionary namespace This CL does nothing but put SuppressionDictionary and UserDictionary into mozc::dictionary. This is just an internal clean-up. Hence no user-visible change is intended. Patch From Noriyuki Takahashi. BUG=none TEST=unittest git-svn-id: http://mozc.googlecode.com/svn/trunk/src/session@551 a6090854-d499-a067-5803-1114d4e51264