Reland of 'Migrate device utils WriteFile to AdbWrapper'

Reland of 'Migrate device utils WriteFile to AdbWrapper'

This is a reland of https://codereview.chromium.org/715853002/

There are no changes, but the last attempt triggered some silent exit code
errors which have now been fixed by https://codereview.chromium.org/732473003/

This CL provides a more robust and efficient implementation of WriteFile,
also integrating the functionality of the (now removed) WriteTextFile.

BUG=267773
Committed: https://crrev.com/60e45a48a3966cb4e0a64d7f8de6f390cd8100f7
Cr-Commit-Position: refs/heads/master@{#305040}

[perezju, 2014-11-20 16:34:06]

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

[perezju, 2014-11-20 16:34:06]

No changes from previous CL, hopefully should work now.

[Sami, 2014-11-20 16:47:50]

Great, lgtm.

[jbudorick, 2014-11-20 16:50:00]

lgtm

[perezju, 2014-11-20 17:05:52]

The CQ bit was checked by perezju@chromium.org

[commit-bot: I haz the power, 2014-11-20 17:06:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/744753002/1

[commit-bot: I haz the power, 2014-11-20 18:33:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-20 18:34:18]

Patchset 1 (id:??) landed as
https://crrev.com/60e45a48a3966cb4e0a64d7f8de6f390cd8100f7
Cr-Commit-Position: refs/heads/master@{#305040}