tree 946e4adc72b5628d452337f62fafadf46f989e71
parent cdf2c6dab41cb6d7e9fa8a9c226c3d3f16183ffc
author Allen Webb <allenwebb@google.com> 1550775381 -0800
committer Allen Webb <allenwebb@google.com> 1550787323 -0800

Add DEFAULT_PIVOT_ROOT var which can be changed at build time.

This allows the default pivot root included with the
minimalistic-mountns profile to be defined at build time. If it is not
set the original value /var/empty is used.

Bug: crbug.com/933582
Test: minijail builds successfully on both Android and CrOS

Change-Id: Ifa167d3d5d5725667b0d20ad47724af4abc24ae0