[automerger skipped] GpuStats: refactor single stats pieces into a uniform way am: 65a1504e
am: 76010e21 -s ours
am skip reason: change_id I2907065a55d03a6c1494737e6f0a77f6e94272eb with SHA1 bcba4117 is in history
Change-Id: I42e8c3511f77f6c909013f061f42b1fce2c16e6e