Merge "Make MemoryDealer::deallocate private" am: cdb2c8f355 am: ebae424d21 am: 0afddfe2d7 am: edc1b777c8 am: c61cd22104

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1843873

Change-Id: I2f4604dc69e93d220b43bf829b1bd84011ecbec7