Revert of [Android] Remove more uses of android_commands from build/android/pylib.

Revert of [Android] Remove more uses of android_commands from build/android/pylib. (patchset #3 id:40001 of https://codereview.chromium.org/1105323002/)

Reason for revert:
Causes HostDriven_SigninTest.testManagedSignin to fail, and hence prevents rolls into Android downstream repository

BUG=482406
Original issue's description:
> [Android] Remove more uses of android_commands from build/android/pylib.
>
> BUG=267773
>
> Committed: https://crrev.com/166b709fc6c8fefad72520473850ce15ffe45898
> Cr-Commit-Position: refs/heads/master@{#327402}

TBR=perezju@chromium.org,mikecase@chromium.org,rnephew@chromium.org,jbudorick@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=267773
Committed: https://crrev.com/6a02a61868b123ce8407d745c840ef623f2ef09c
Cr-Commit-Position: refs/heads/master@{#327469}

[aberent, 2015-04-29 11:06:55]

Created Revert of [Android] Remove more uses of android_commands from
build/android/pylib.

[commit-bot: I haz the power, 2015-04-29 11:07:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1116493003/1

[commit-bot: I haz the power, 2015-04-29 11:08:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-29 11:08:51]

Patchset 1 (id:??) landed as
https://crrev.com/6a02a61868b123ce8407d745c840ef623f2ef09c
Cr-Commit-Position: refs/heads/master@{#327469}