Make BackgroundBudgetService calls asynchronous.

chrome/browser/push_messaging/push_messaging_notification_manager.h

Index: chrome/browser/push_messaging/push_messaging_notification_manager.h
diff --git a/chrome/browser/push_messaging/push_messaging_notification_manager.h b/chrome/browser/push_messaging/push_messaging_notification_manager.h
index 60a2edb78d70cbec4412ac0207cf14054751f412..6a5256b0c3a9e45dfbbae1abdc8428dc5a2cd9df 100644
--- a/chrome/browser/push_messaging/push_messaging_notification_manager.h
+++ b/chrome/browser/push_messaging/push_messaging_notification_manager.h
@@ -93,6 +93,13 @@ class PushMessagingNotificationManager {
       bool success,
       int64_t persistent_notification_id);
 
+  void DidGetBudget(const GURL& origin,
+                    int64_t service_worker_registration_id,
+                    const base::Closure& message_handled_closure,
+                    bool notification_needed,
+                    bool notification_shown,
+                    double budget);
+
   // Weak. This manager is owned by a keyed service on this profile.
   Profile* profile_;