GitLab

Support /privet/printer/createjob. Currently does not correctly fall back for
all error conditions. Also, simplify PrivetLocalPrinterOperation by removing the
callback for current request (since it was used only by the retry system, which
was moved to PrivetURLFetcher).

BUG=

Review URL: https://codereview.chromium.org/59033010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233451 0039d316-1c4b-4281-b951-d872f2087c98