Reconcile the request queue on startup.

components/offline_pages/core/background/request_coordinator.h

Index: components/offline_pages/core/background/request_coordinator.h
diff --git a/components/offline_pages/core/background/request_coordinator.h b/components/offline_pages/core/background/request_coordinator.h
index 60a85f8f5e430dff7b0fd60dfb20645f0cfa5e5a..875bd8fb1782dffafbe40e50449786c5831ad5ba 100644
--- a/components/offline_pages/core/background/request_coordinator.h
+++ b/components/offline_pages/core/background/request_coordinator.h
@@ -236,6 +236,8 @@ class RequestCoordinator : public KeyedService,
   void UpdateMultipleRequestsCallback(
       std::unique_ptr<UpdateRequestsResult> result);
 
+  void ReconcileCallback(std::unique_ptr<UpdateRequestsResult> result);
+
   void HandleRemovedRequestsAndCallback(
       const RemoveRequestsCallback& callback,
       RequestNotifier::BackgroundSavePageResult status,