Don't crash on device resolution failure.
commita5566938c4e9d644245e9bca37eeff2cdb3eb7f4
authorvitalybuka@chromium.org <vitalybuka@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Tue, 17 Jun 2014 18:07:39 +0000 (17 18:07 +0000)
committervitalybuka@chromium.org <vitalybuka@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Tue, 17 Jun 2014 18:07:39 +0000 (17 18:07 +0000)
tree9ee34bf33dfd27fb72db5582b244284ce64bf242
parent103b2f350efa34cac47f79c743dc640efca59f72
Don't crash on device resolution failure.
If resolution failed, callback receives empty pointer.

BUG=385392

Review URL: https://codereview.chromium.org/333243007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@277808 0039d316-1c4b-4281-b951-d872f2087c98
chrome/browser/local_discovery/privet_local_printer_lister.cc
chrome/browser/local_discovery/privet_local_printer_lister.h
chrome/browser/local_discovery/privet_notifications.cc