Refactor UKM interface for mojo-ification

chrome/browser/android/metrics/uma_session_stats.cc

Index: chrome/browser/android/metrics/uma_session_stats.cc
diff --git a/chrome/browser/android/metrics/uma_session_stats.cc b/chrome/browser/android/metrics/uma_session_stats.cc
index 5d07ef31d8c83de8689463d8e092815b8fae1c80..2358ad98f2504876734176b7f5ae052a8b095f14 100644
--- a/chrome/browser/android/metrics/uma_session_stats.cc
+++ b/chrome/browser/android/metrics/uma_session_stats.cc
@@ -53,7 +53,8 @@ void UmaSessionStats::UmaResumeSession(JNIEnv* env,
     metrics::MetricsService* metrics = g_browser_process->metrics_service();
     if (metrics)
       metrics->OnAppEnterForeground();
-    ukm::UkmService* ukm_service = g_browser_process->ukm_service();
+    ukm::UkmService* ukm_service =
+        g_browser_process->GetMetricsServicesManager()->GetUkmService();
     if (ukm_service)
       ukm_service->OnAppEnterForeground();
   }
@@ -77,7 +78,8 @@ void UmaSessionStats::UmaEndSession(JNIEnv* env,
     metrics::MetricsService* metrics = g_browser_process->metrics_service();
     if (metrics)
       metrics->OnAppEnterBackground();
-    ukm::UkmService* ukm_service = g_browser_process->ukm_service();
+    ukm::UkmService* ukm_service =
+        g_browser_process->GetMetricsServicesManager()->GetUkmService();
     if (ukm_service)
       ukm_service->OnAppEnterBackground();
   }