Switch UKM service to properly mark upload data as UKM and not UMA.

ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm

Index: ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm
diff --git a/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm b/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm
index 22078e493508d35426d8ab80d16ad7a871255799..010a20f30f31ffc7e8c09722f44f3d79886ae7fa 100644
--- a/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm
+++ b/ios/chrome/browser/metrics/ios_chrome_metrics_service_client.mm
@@ -27,6 +27,7 @@
 #include "components/keyed_service/core/service_access_type.h"
 #include "components/metrics/call_stack_profile_metrics_provider.h"
 #include "components/metrics/drive_metrics_provider.h"
+#include "components/metrics/metrics_log_uploader.h"
 #include "components/metrics/metrics_pref_names.h"
 #include "components/metrics/metrics_reporting_default_state.h"
 #include "components/metrics/metrics_service.h"
@@ -164,10 +165,11 @@ std::unique_ptr<metrics::MetricsLogUploader>
 IOSChromeMetricsServiceClient::CreateUploader(
     const std::string& server_url,
     const std::string& mime_type,
+    metrics::MetricsLogUploader::MetricServiceType service_type,
     const base::Callback<void(int)>& on_upload_complete) {
   return base::MakeUnique<metrics::NetMetricsLogUploader>(
-      GetApplicationContext()->GetSystemURLRequestContext(),
-      server_url, mime_type, on_upload_complete);
+      GetApplicationContext()->GetSystemURLRequestContext(), server_url,
+      mime_type, service_type, on_upload_complete);
 }
 
 base::TimeDelta IOSChromeMetricsServiceClient::GetStandardUploadInterval() {