Ephemeral apps should not appear in ChromeOS file manager menus

Ephemeral apps should not appear in ChromeOS file manager menus

Ephemeral apps should not be used to open files via the ChromeOS file
manager as they are not permanently installed.

BUG=391145
TEST=unit_tests

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282312

[tmdiep, 2014-07-10 05:50:07]

Some background for this patch:
Ephemeral apps should not be listed in the context menus of the CrOS file
manager to open files. They are not considered to be installed from the user's
point of view, so should not be integrated with the OS. A problem that this
patch avoids: suppose the user selects the ephemeral app to be the default app
to open a file type, and then the ephemeral app becomes garbage collected.

satorux: PTAL and let me know if I have missed any other cases where apps are
listed in the file manager. Thanks in advance.

[satorux1, 2014-07-10 05:51:19]

defer to kinaba@

[kinaba, 2014-07-10 07:00:46]

lgtm. The change should cover all the cases.

[tmdiep, 2014-07-10 08:00:12]

The CQ bit was checked by tmdiep@chromium.org

[commit-bot: I haz the power, 2014-07-10 08:01:44]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tmdiep@chromium.org/381583007/1

[commit-bot: I haz the power, 2014-07-10 11:23:55]

Change committed as 282312