Add a comment to document that we don't know if a nonblocking connect will ever return 0, and therefore we don't know if the event object will be signaled in that case.
Add a comment to document that we don't know if a nonblocking
connect will ever return 0, and therefore we don't know if the
event object will be signaled in that case.

R=rvargas
http://crbug.com/9258
TEST=N/A
Review URL: http://codereview.chromium.org/113474

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@16171 0039d316-1c4b-4281-b951-d872f2087c98

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