The serialized log buffer along with compression results in:
* ~3.5x more logs than chatty
* Less CPU usage
* Less memory usage
* Equivalent log range
Also, delete tests that assume that the device logd implementation is
chatty. There are actual unit tests for this same behavior that don't
rely on the device logd.
Test: serialized log buffer is used
Change-Id: Ie12898617429a75b6caff92725aa7145650f8fc6
Add a standalone test of log buffers that does not interact with the
logd running on the device.
Test: this new test
Change-Id: Ie4ecc50289ef164aa47cc72ddeeb9b28e776db94