Alloc extra bytes for bits buf for parse optimzation am: 4cf597a518 am: 847da962ca am: 1a4160b448 am: 0f0d14ee95 am: 1f1b528420 am: c8d00a7dc9 am: 3459daa979
am: 2e435f308a

Change-Id: I6384f4c47c539862a690b133750d573a902ab62d