Non-SFI NaCl: Expose the "fdio" IRT interface via its non-dev query string

Non-SFI NaCl: Expose the "fdio" IRT interface via its non-dev query string

For PNaCl, "fdio" should only be exposed via the "dev" query string,
indicating a non-stable interface.

But, outside of PNaCl, since we will be providing open_resource() as a
stable interface in Non-SFI NaCl, we need to provide "fdio" as a
stable ABI, via its non-dev query string.  Since open_resource()
returns an FD, it's only useful with the FD operations that "fdio"
provides.

BUG=358431
TEST=none

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=268240

[hidehiko, 2014-05-05 12:37:00]

lgtm

[Mark Seaborn, 2014-05-05 13:53:20]

The CQ bit was checked by mseaborn@chromium.org

[commit-bot: I haz the power, 2014-05-05 13:53:33]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mseaborn@chromium.org/266703003/1

[commit-bot: I haz the power, 2014-05-05 17:29:17]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  win_chromium_rel on tryserver.chromium

[commit-bot: I haz the power, 2014-05-05 19:10:33]

Change committed as 268240