tree 6491652b415edb125f543b48ac39481170af6038
parent 7d100ce03bbe317ee1b3b5846c27fe167e3e9df6
author Tao Bao <tbao@google.com> 1514227427 -0800
committer Tao Bao <tbao@google.com> 1514924521 -0800

releasetools: Add common.MakeTempDir().

This simplifies the work to track mkdtemp()'d dirs. This CL also cleans
up the temporary file creation in build_image.py.

Test: `m dist`
Test: python -m unittest test_common
Change-Id: Ied7d86126714b9b26e5df7bcca1dfdea21cfcf60