Support DIR_STANDALONE_EXTERNAL_EXTENSIONS on Chrome OS

Support DIR_STANDALONE_EXTERNAL_EXTENSIONS on Chrome OS

This source of external extensions will be used on Chrome OS for installing board specific
default extensions. They need to be from CWS same as other default apps on Chrome OS.

BUG=149158
TEST=manual


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=156810

[Finnur, 2012-09-14 10:02:22]

LGTM

[commit-bot: I haz the power, 2012-09-14 12:46:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dpolukhin@chromium.org/10916312/1

[commit-bot: I haz the power, 2012-09-14 12:46:04]

Presubmit check for 10916312-1 failed and returned exit status 1.


Running presubmit commit checks ...

** Presubmit ERRORS **
Missing LGTM from an OWNER for files in these directories:
    chrome

[Dmitry Polukhin, 2012-09-14 12:46:54]

+ Nico for OWNER review in chrome/

[Nico, 2012-09-14 12:54:57]

lgtm stamp

[commit-bot: I haz the power, 2012-09-14 13:58:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dpolukhin@chromium.org/10916312/1

[commit-bot: I haz the power, 2012-09-14 16:11:06]

Change committed as 156810