Remove implicit conversions from scoped_refptr to T* in chrome/browser/ui/

chrome/browser/ui/webui/interstitials/interstitial_ui.cc

Index: chrome/browser/ui/webui/interstitials/interstitial_ui.cc
diff --git a/chrome/browser/ui/webui/interstitials/interstitial_ui.cc b/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
index 22c98e0217d85e57c8ab96022142bb5017180fcb..b1764eccd01cc082766b756de5ebc26c223593b8 100644
--- a/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
+++ b/chrome/browser/ui/webui/interstitials/interstitial_ui.cc
@@ -124,7 +124,7 @@ SafeBrowsingBlockingPage* CreateSafeBrowsingBlockingPage(
   resource.threat_type =  threat_type;
   // Create a blocking page without showing the interstitial.
   return SafeBrowsingBlockingPage::CreateBlockingPage(
-      g_browser_process->safe_browsing_service()->ui_manager(),
+      g_browser_process->safe_browsing_service()->ui_manager().get(),
       web_contents,
       resource);
 }