tree 5d90bfc7b0e4c790ac9215ed6100a3130756e935
parent d53208c8e7ca4b2e2d4070d8e67ec1ee078cee74
author Richard Uhler <ruhler@google.com> 1463506492 -0700
committer Richard Uhler <ruhler@google.com> 1464136391 -0700

Only compile dex files if they are not up to date.

Instead of trying to compile them all the time, and relying on file
permissions to keep us from overwriting up-to-date dex files with
different compiler filters.

Bug: 27641809
Bug: 28639246
Bug: 28826195
Change-Id: Ie717089d58517427b6f9a522b48146761c57a1a9