Reserve vector capacity in advance and avoid copying it
Reserve vector capacity in advance and avoid copying it

Change-Id: I98d1d6fdf6c4646486a751c34e79bddf771b83a9

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