Clean-up Chrome Apps codelab.

Clean-up Chrome Apps codelab.
Some of the updated files got accidentally stashed and I needed to pop
and recheck that the content was up-to-date.

Committed: https://crrev.com/fd1ee51ed8d15fbc90bd76d2a0e67d4dc664a3ae
Cr-Commit-Position: refs/heads/master@{#300334}

[mkearney1, 2014-10-20 20:03:38]

mkearney@chromium.org changed reviewers:
+ kalman@chromium.org, rockot@chromium.org

[mkearney1, 2014-10-20 20:03:39]

As promised, a second round of clean-ups to the Chrome apps codelab. Just needed
to pop some stashed files and reviewed carefully.

Looking for a rubber stamp lgtm.

[not at google - send to devlin, 2014-10-20 20:10:42]

rslgtm

[not at google - send to devlin, 2014-10-20 20:10:50]

apparently that doesn't trigger as a lgtm

[mkearney1, 2014-10-20 20:17:13]

The CQ bit was checked by mkearney@chromium.org

[commit-bot: I haz the power, 2014-10-20 20:18:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/647763004/1

[commit-bot: I haz the power, 2014-10-20 21:44:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-20 21:45:21]

Patchset 1 (id:??) landed as
https://crrev.com/fd1ee51ed8d15fbc90bd76d2a0e67d4dc664a3ae
Cr-Commit-Position: refs/heads/master@{#300334}