tree 36f768340138359bf993c4f1b095d9ebb5c6eb55
parent af65ef11be6ba08ba3a8d2c983e18ad24c109a93
author Yifan Hong <elsk@google.com> 1540836028 -0700
committer Yifan Hong <elsk@google.com> 1540931088 -0700

BootControlAndroid::GetPartitionDevice checks super metadata

... before checking device mapper. When sideloading, current (source) slot
partitions aren't mapped on device mapper in recovery. Hence, When
GetPartitionDevice is called:

- If device is already mapped, use it
- If device isn't mapped but is in metadata, this is a dynamic
  partition and will be mapped (with force_writable = false, since
  writable partitions should have been mapped with force_writable
  in InitPartitionMetadata)
- If device isn't mapped and it is not in metadata, this is a static
  partition.

Test: manual sideload incremental update with a device with dynamic partitions
Test: update_engine_unittests

Fixes: 117101719
Change-Id: I85b490e11cee689846d2bf899b6015f1b320bed9