Moving utility methods in data_reduction_proxy to util namespace

components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc
index 44277dcb4e3e4c30d0db315fcbb01ae34302139f..7d9c06677493de75f21c90f96e201eebe640bb9a 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_pingback_client.cc
@@ -58,21 +58,21 @@ std::string SerializeData(const DataReductionProxyData& request_data,
   std::string serialized_request;
   batched_request.SerializeToString(&serialized_request);
   return serialized_request;
 }
 
 }  // namespace
 
 DataReductionProxyPingbackClient::DataReductionProxyPingbackClient(
     net::URLRequestContextGetter* url_request_context)
     : url_request_context_(url_request_context),
-      pingback_url_(AddApiKeyToUrl(params::GetPingbackURL())) {}
+      pingback_url_(util::AddApiKeyToUrl(params::GetPingbackURL())) {}
 
 DataReductionProxyPingbackClient::~DataReductionProxyPingbackClient() {
   DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void DataReductionProxyPingbackClient::OnURLFetchComplete(
     const net::URLFetcher* source) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(source == current_fetcher_.get());
   // TODO(ryansturm): Add UMA to measure failures. crbug.com/616544