Log operator code histogram on new metric log

net/base/network_change_notifier.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/base/network_change_notifier.h"
 
 #include "base/metrics/histogram.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "build/build_config.h"
@@ skipping 230 matching lines @@
     unsigned mcc_mnc = 0;
     if (type == NetworkChangeNotifier::CONNECTION_2G ||
         type == NetworkChangeNotifier::CONNECTION_3G ||
         type == NetworkChangeNotifier::CONNECTION_4G) {
       // Log zero if not perfectly converted.
       if (!base::StringToUint(
           net::android::GetTelephonyNetworkOperator(), &mcc_mnc)) {
         mcc_mnc = 0;
       }
     }
-    UMA_HISTOGRAM_SPARSE_SLOWLY(
-        "NCN.NetworkOperatorMCCMNC_ConnectionChange", mcc_mnc);
+    UMA_HISTOGRAM_SPARSE_SLOWLY("NCN.NetworkOperatorMCCMNC", mcc_mnc);
 #endif
 
     UMA_HISTOGRAM_MEDIUM_TIMES(
         "NCN.IPAddressChangeToConnectionTypeChange",
         now - last_ip_address_change_);
 
     offline_packets_received_ = 0;
     bytes_read_since_last_connection_change_ = 0;
     peak_kbps_since_last_connection_change_ = 0;
     last_connection_type_ = type;
@@ skipping 503 matching lines @@
   DCHECK(g_network_change_notifier);
   g_network_change_notifier = NULL;
 }
 
 NetworkChangeNotifier::DisableForTest::~DisableForTest() {
   DCHECK(!g_network_change_notifier);
   g_network_change_notifier = network_change_notifier_;
 }
 
 }  // namespace net