[Android] Remove isolate_deps_dir after files have been pushed.

[Android] Remove isolate_deps_dir after files have been pushed.

The old test runner leaves isolate_deps_dir around while running tests.
gtests remove it at the end of a test run, but instrumentation tests
do not. This CL makes both test types remove isolate_deps_dir
immediately after pushing the data dependencies to the device.

BUG=

Committed: https://crrev.com/e9bc362d18529975c5e80193fa2e118fc1acadcf
Cr-Commit-Position: refs/heads/master@{#329152}

[jbudorick, 2015-05-08 22:01:16]

jbudorick@chromium.org changed reviewers:
+ newt@chromium.org

[jbudorick, 2015-05-09 00:20:40]

jbudorick@chromium.org changed reviewers:
+ perezju@chromium.org

[perezju, 2015-05-11 09:06:03]

lgtm

[jbudorick, 2015-05-11 13:03:30]

The CQ bit was checked by jbudorick@chromium.org

[commit-bot: I haz the power, 2015-05-11 13:03:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1135863003/20001

[commit-bot: I haz the power, 2015-05-11 14:21:59]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-11 14:22:44]

Patchset 2 (id:??) landed as
https://crrev.com/e9bc362d18529975c5e80193fa2e118fc1acadcf
Cr-Commit-Position: refs/heads/master@{#329152}

[newt (away), 2015-05-11 15:48:40]

thanks for fixing this :)