GitLab

It emits NCN.NetworkOperatorMCCMNC_NewMetricsLog on new metric log creation with the network operator MCC_MNC code 

BUG=355604

Review URL: https://codereview.chromium.org/253203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269627 0039d316-1c4b-4281-b951-d872f2087c98