Add server_url and mime_type params to CreateUploader.

components/metrics/metrics_service_client.cc

Index: components/metrics/metrics_service_client.cc
diff --git a/components/metrics/metrics_service_client.cc b/components/metrics/metrics_service_client.cc
index f4c38685f45b381c9d23713da1ca64e8d4afd43f..1bb75e52dbeccf0038da377d676e067bf89f84cd 100644
--- a/components/metrics/metrics_service_client.cc
+++ b/components/metrics/metrics_service_client.cc
@@ -4,6 +4,8 @@
 
 #include "components/metrics/metrics_service_client.h"
 
+#include "components/metrics/url_constants.h"
+
 namespace metrics {
 
 base::string16 MetricsServiceClient::GetRegistryBackupKey() {
@@ -22,4 +24,8 @@ bool MetricsServiceClient::IsUMACellularUploadLogicEnabled() {
   return false;
 }
 
+std::string MetricsServiceClient::GetMetricsServerUrl() {
+  return metrics::kDefaultMetricsServerUrl;
+}
+
 }  // namespace metrics