Pepper: Make PPB_UDPSocket_Private SendTo() return proper error codes.
Pepper: Make PPB_UDPSocket_Private SendTo() return proper error codes.

BUG=125971
TEST=none


Review URL: http://codereview.chromium.org/10337004

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@135041 0039d316-1c4b-4281-b951-d872f2087c98

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