tree d975bfe4953f509463bf3ea09d2f7297ed7a4605
parent 5fdae9fa7f7be3ca0ef7050c581c4e900c3d724a
author Jon Noack <noackjr@google.com> 1484232914 -0600
committer Jon Noack <noackjr@google.com> 1484235484 -0600

Prefix temp files to ensure they are cleaned up

Temp files are removed unconditionally in a finally block following extraction.
However, if the process is killed during extraction this finally block will not
run. Because temp files started with extractedFilePrefix, they wouldn't be
cleaned up in prepareDexDir(). This change ensures that prepareDexDir() will
remove any existing temp files before extraction begins.

Bug: 27769642
Bug: 33718827
Test: Passes Google Play services tests
Change-Id: I803ba2c7234801551d36cbbe2941eeaa986d31f8