HTTP_NOT_OK        33 google_apis/gcm/engine/checkin_request.cc   HTTP_NOT_OK,                // HTTP status was not OK.
HTTP_NOT_OK        44 google_apis/gcm/engine/registration_request.h     HTTP_NOT_OK,                // HTTP status was not OK.
HTTP_NOT_OK        43 google_apis/gcm/engine/unregistration_request.h     HTTP_NOT_OK,              // HTTP response code was not OK.