hoover up some CreateStringValues

chrome/browser/ui/webui/uber/uber_ui.cc

Index: chrome/browser/ui/webui/uber/uber_ui.cc
diff --git a/chrome/browser/ui/webui/uber/uber_ui.cc b/chrome/browser/ui/webui/uber/uber_ui.cc
index 2c68102033ff5277c2596cb033bed93209673989..a55842d66b65cf3c1f1fe72e0899342b8c409416 100644
--- a/chrome/browser/ui/webui/uber/uber_ui.cc
+++ b/chrome/browser/ui/webui/uber/uber_ui.cc
@@ -210,14 +210,12 @@ void UberFrameUI::Observe(int type, const content::NotificationSource& source,
     case chrome::NOTIFICATION_EXTENSION_LOADED:
     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
       Profile* profile = Profile::FromWebUI(web_ui());
-      bool overridesHistory = HasExtensionType(profile,
-          chrome::kChromeUIHistoryHost);
-      scoped_ptr<Value> controlsValue(
-          Value::CreateStringValue(chrome::kChromeUIHistoryHost));
-      scoped_ptr<Value> overrideValue(
-          Value::CreateStringValue(overridesHistory ? "yes" : "no"));
+      bool overrides_history =
+          HasExtensionType(profile, chrome::kChromeUIHistoryHost);
       web_ui()->CallJavascriptFunction(
-          "uber_frame.setNavigationOverride", *controlsValue, *overrideValue);
+          "uber_frame.setNavigationOverride",
+          base::StringValue(chrome::kChromeUIHistoryHost),
+          base::StringValue(overrides_history ? "yes" : "no"));
       break;
     }
     default: