DRP: Make secure proxy check URL a DRP param

components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc
index 421cca58811cabe85e0402f4cb262beb7659f1ac..4985b9a284eb64c04fe518701fd4588b8171c535 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_mutable_config_values.cc
@@ -16,7 +16,6 @@ DataReductionProxyMutableConfigValues::CreateFromParams(
     const DataReductionProxyParams* params) {
   std::unique_ptr<DataReductionProxyMutableConfigValues> config_values(
       new DataReductionProxyMutableConfigValues());
-  config_values->secure_proxy_check_url_ = params->secure_proxy_check_url();
   return config_values;
 }
 
@@ -50,11 +49,6 @@ DataReductionProxyMutableConfigValues::proxies_for_http() const {
   return proxies_for_http_;
 }
 
-const GURL& DataReductionProxyMutableConfigValues::secure_proxy_check_url()
-    const {
-  return secure_proxy_check_url_;
-}
-
 void DataReductionProxyMutableConfigValues::UpdateValues(
     const std::vector<DataReductionProxyServer>& proxies_for_http) {
   DCHECK(thread_checker_.CalledOnValidThread());