Fix the comment of PPB_MessageLoop.PostWork()

Fix the comment of PPB_MessageLoop.PostWork()

The current comment says that PostWork() returns PP_OK_COMPLETIONPENDING if successful. This CL changes it to PP_OK.

TEST=None
BUG=170777

[yzshen1, 2013-01-17 22:19:39]

Hi, David.

Would you please take a look? Thanks!

[dmichael (off chromium), 2013-01-17 22:23:48]

lgtm, thanks!

[yzshen1, 2013-01-17 22:25:17]

On 2013/01/17 22:23:48, dmichael wrote:
> lgtm, thanks!

Thanks! I am also sending a mail to notify the pepper team because this is a
stable interface.

[dmichael (off chromium), 2013-01-17 22:27:44]

On Thu, Jan 17, 2013 at 3:25 PM, <yzshen@chromium.org> wrote:

> On 2013/01/17 22:23:48, dmichael wrote:
>
>> lgtm, thanks!
>>
>
> Thanks! I am also sending a mail to notify the pepper team because this is
> a
> stable interface.
>
Good idea. FWIW I'm not overly concerned; it's always worked this way, and
only shipped in 25. Might be nice to tell noelallen and/or binji on the SDK
team, so they can try to incorporate this documentation fix into their NaCl
SDK package.


>
https://codereview.chromium.**org/11962050/<https://codereview.chromium.org/1...
>

[yzshen1, 2013-01-17 22:33:42]

> Good idea. FWIW I'm not overly concerned; it's always worked this way, and
> only shipped in 25. Might be nice to tell noelallen and/or binji on the SDK
> team, so they can try to incorporate this documentation fix into their NaCl
> SDK package.
> 
Yeah, I agree. And I will notify them. :)

[yzshen1, 2013-01-17 23:13:28]

Committed as r177519.