Add server_url and mime_type params to CreateUploader.

chrome/browser/metrics/chrome_metrics_service_client.cc

Index: chrome/browser/metrics/chrome_metrics_service_client.cc
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.cc b/chrome/browser/metrics/chrome_metrics_service_client.cc
index bced9689112ddfebc53943edf3dee70c2c2c2101..670211b57d19ef15b19e96da169aba144f57889a 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -506,12 +506,13 @@ void ChromeMetricsServiceClient::CollectFinalMetricsForLog(
 
 std::unique_ptr<metrics::MetricsLogUploader>
 ChromeMetricsServiceClient::CreateUploader(
+    const std::string& server_url,
+    const std::string& mime_type,
     const base::Callback<void(int)>& on_upload_complete) {
   return std::unique_ptr<metrics::MetricsLogUploader>(
       new metrics::NetMetricsLogUploader(
           g_browser_process->system_request_context(),
-          metrics::kDefaultMetricsServerUrl, metrics::kDefaultMetricsMimeType,
-          on_upload_complete));
+          server_url, mime_type, on_upload_complete));
 }
 
 base::TimeDelta ChromeMetricsServiceClient::GetStandardUploadInterval() {