roll_deps: Return a tuple even when returning early

roll_deps: Return a tuple even when returning early

This fixes the bot going red when DEPS is already up-to-date.

BUG=skia:

Committed: http://code.google.com/p/skia/source/detail?r=13642

[borenet, 2014-03-03 14:58:06]

Uploaded patch set 2.

[hal.canary, 2014-03-03 15:06:12]

On 2014/03/03 14:58:06, borenet wrote:
> Uploaded patch set 2.

If you have tested this, then it LGTM.

[borenet, 2014-03-03 15:19:34]

On 2014/03/03 15:06:12, Hal Canary wrote:
> On 2014/03/03 14:58:06, borenet wrote:
> > Uploaded patch set 2.
> 
> If you have tested this, then it LGTM.

Added a "return (None, None)" line at the beginning of "roll_deps" locally to
verify that this does the right thing when a tuple is returned.  I didn't want
to run the whole thing because of the high cost associated with launching that
many trybots.  I set off a trybot of the DEPS roll bot, but it's the very first
run of that bot so it's syncing chrome for the first time and will take a while.

[borenet, 2014-03-03 17:41:41]

On 2014/03/03 15:19:34, borenet wrote:
> On 2014/03/03 15:06:12, Hal Canary wrote:
> > On 2014/03/03 14:58:06, borenet wrote:
> > > Uploaded patch set 2.
> > 
> > If you have tested this, then it LGTM.
> 
> Added a "return (None, None)" line at the beginning of "roll_deps" locally to
> verify that this does the right thing when a tuple is returned.  I didn't want
> to run the whole thing because of the high cost associated with launching that
> many trybots.  I set off a trybot of the DEPS roll bot, but it's the very
first
> run of that bot so it's syncing chrome for the first time and will take a
while.

Trybot is hung due to credential issues.  I'm going to assume that this works,
and go ahead and CQ.

[borenet, 2014-03-03 17:41:45]

The CQ bit was checked by borenet@google.com

[commit-bot: I haz the power, 2014-03-03 17:41:49]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/borenet@google.com/185413012/20001

[commit-bot: I haz the power, 2014-03-03 17:57:43]

Change committed as 13642