[Autofill] Add upstreaming UKM

chrome/browser/ui/autofill/chrome_autofill_client.cc

Index: chrome/browser/ui/autofill/chrome_autofill_client.cc
diff --git a/chrome/browser/ui/autofill/chrome_autofill_client.cc b/chrome/browser/ui/autofill/chrome_autofill_client.cc
index 62a45c9d5ce021ab17c35404927e98737e960722..4213a737c87e58a9e9d7e9144b05d3ccbef30ab0 100644
--- a/chrome/browser/ui/autofill/chrome_autofill_client.cc
+++ b/chrome/browser/ui/autofill/chrome_autofill_client.cc
@@ -148,6 +148,10 @@ rappor::RapporServiceImpl* ChromeAutofillClient::GetRapporServiceImpl() {
   return g_browser_process->rappor_service();
 }
 
+ukm::UkmService* ChromeAutofillClient::GetUkmService() {
+  return g_browser_process->ukm_service();
+}
+
 void ChromeAutofillClient::ShowAutofillSettings() {
 #if defined(OS_ANDROID)
   chrome::android::ChromeApplication::ShowAutofillSettings();