Remove implicit conversions from scoped_refptr to T* in components/data_reduction_proxy/

components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc

Index: components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
diff --git a/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc b/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
index 795dbea03dc53e340e32bceadc20f70278643806..22bd57c8263d396ba20eb6f132d167b328e0b908 100644
--- a/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
+++ b/components/data_reduction_proxy/browser/data_reduction_proxy_metrics.cc
@@ -314,8 +314,9 @@ DataReductionProxyRequestType GetDataReductionProxyRequestType(
     return SHORT_BYPASS;
   }
 #endif
-  if (request->response_info().headers &&
-      HasDataReductionProxyViaHeader(request->response_info().headers, NULL)) {
+  if (request->response_info().headers.get() &&
+      HasDataReductionProxyViaHeader(request->response_info().headers.get(),
+                                     NULL)) {
     return VIA_DATA_REDUCTION_PROXY;
   }
   return UNKNOWN_TYPE;