cairo uses pre-multiplied alpha
cairo uses pre-multiplied alpha

Change-Id: I6cf04b10bfdd6c7b16761b2aa2f31c1392c49546

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core