Implement UMA log throttling for cellular connections

chrome/browser/metrics/chrome_metrics_service_client.cc

 // Copyright 2014 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 "chrome/browser/metrics/chrome_metrics_service_client.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 666 matching lines @@
       break;
 
     default:
       NOTREACHED();
   }
 }
 
 void ChromeMetricsServiceClient::OnURLOpenedFromOmnibox(OmniboxLog* log) {
   metrics_service_->OnApplicationNotIdle();
 }
+
+bool ChromeMetricsServiceClient::IsUMACellularUploadLogicEnabled() {
+  return IsCellularLogicEnabled();
+}