Fix the settings button and UMA metrics for the message center

chrome/browser/notifications/web_notification_delegate.cc

Index: chrome/browser/notifications/web_notification_delegate.cc
diff --git a/chrome/browser/notifications/web_notification_delegate.cc b/chrome/browser/notifications/web_notification_delegate.cc
index b1ed063c9b65e801554e8e705886e03e266bccf6..86671a5d043199e7aec7122fa882429179c15b2d 100644
--- a/chrome/browser/notifications/web_notification_delegate.cc
+++ b/chrome/browser/notifications/web_notification_delegate.cc
@@ -42,8 +42,13 @@ std::string WebNotificationDelegate::id() const {
   return notification_id_;
 }
 
-void WebNotificationDelegate::SettingsClick() {
+bool WebNotificationDelegate::SettingsClick() {
+#if !defined(OS_CHROMEOS)
   NotificationCommon::OpenNotificationSettings(browser_context_);
+  return true;
+#else
+  return false;
+#endif
 }
 
 bool WebNotificationDelegate::ShouldDisplaySettingsButton() {