24afb5d036
A new bug was introduced in a80bdfd "Change sinpi_{1,2,3,4}_9 from tran_high_t to int16_t". Reverted the change in this file. BUG=webm:1450 Failed test C/TransHT.AccuracyCheck/26. Change-Id: Id001f57aad811803ef7d367d2b2bc008d8499991