GitLab

1. Add option to suppress logging to omit sensitive information.
2. Change debug output to longMsg to aid debugging.

BUG=137853


Review URL: https://chromiumcodereview.appspot.com/10823093

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149204 0039d316-1c4b-4281-b951-d872f2087c98