Move content/renderer/background_sync to Blink

third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h

Index: third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h b/third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h
index 03d806ca926ca46c675939ae6de4eec3dee427b8..f35ceb48309405059eb8dc970506d4dad59e21b5 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/WaitUntilObserver.h
@@ -9,7 +9,9 @@
 #include "modules/ModulesExport.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
 #include "platform/Timer.h"
+#include "public/platform/modules/serviceworker/service_worker_event_status.mojom-shared.h"
 #include "wtf/Forward.h"
+#include <memory>
 
 namespace blink {
 
@@ -24,6 +26,8 @@ class MODULES_EXPORT WaitUntilObserver final
     : public GarbageCollectedFinalized<WaitUntilObserver>,
       public ContextLifecycleObserver {
   USING_GARBAGE_COLLECTED_MIXIN(WaitUntilObserver);
+  using Callback = WTF::Function<void(blink::mojom::ServiceWorkerEventStatus,
+                                      const double&)>;
 
  public:
   enum EventType {
@@ -38,6 +42,9 @@ class MODULES_EXPORT WaitUntilObserver final
   };
 
   static WaitUntilObserver* create(ExecutionContext*, EventType, int eventID);
+  static WaitUntilObserver* create(ExecutionContext*,
+                                   EventType,
+                                   std::unique_ptr<Callback>);
 
   // Must be called before and after dispatching the event.
   void willDispatchEvent();
@@ -55,13 +62,19 @@ class MODULES_EXPORT WaitUntilObserver final
   void incrementPendingActivity();
   void decrementPendingActivity();
 
+  // Overriden from LifecycleObserver
+  void contextDestroyed() override;
+
   DECLARE_VIRTUAL_TRACE();
 
  private:
   friend class InternalsServiceWorker;
   class ThenFunction;
 
-  WaitUntilObserver(ExecutionContext*, EventType, int eventID);
+  WaitUntilObserver(ExecutionContext*,
+                    EventType,
+                    int eventID,
+                    std::unique_ptr<Callback>);
 
   void reportError(const ScriptValue&);
 
@@ -74,6 +87,7 @@ class MODULES_EXPORT WaitUntilObserver final
   bool m_eventDispatched = false;
   double m_eventDispatchTime = 0;
   Timer<WaitUntilObserver> m_consumeWindowInteractionTimer;
+  std::unique_ptr<Callback> m_callback;
 };
 
 }  // namespace blink