tree fe14d54943ea68bcff31efd4bc91f715a3fe463e
parent 65d53995340e5ad50e333115b22695425d59c0da
author Tomasz Mikolajewski <mtomasz@google.com> 1485327490 +0900
committer Tomasz Mikolajewski <mtomasz@google.com> 1486084325 +0000

Move executor details to ReadableArchive.

WriteableArchive is going to use a different executor. Files have to
be written sequentially, so in only one thread in parallel. On the other
hand, ReadableArchive supports parallel reading.

Test: Refactoring only. Unit tests pass.
Bug: 20822019
Change-Id: Ie030c2e9478be576ae87f8f30b8d1e9388507cb2
(cherry picked from commit 3b135ef27a918143489cae0d99770890f3bbb3b6)