Revert of Deletes mojo::Callback

content/renderer/service_worker/service_worker_context_client.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/service_worker/service_worker_context_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/lazy_instance.h"
@@ skipping 154 matching lines @@
 struct ServiceWorkerContextClient::WorkerContextData {
   using ClientsCallbacksMap =
       IDMap<blink::WebServiceWorkerClientsCallbacks, IDMapOwnPointer>;
   using ClaimClientsCallbacksMap =
       IDMap<blink::WebServiceWorkerClientsClaimCallbacks, IDMapOwnPointer>;
   using ClientCallbacksMap =
       IDMap<blink::WebServiceWorkerClientCallbacks, IDMapOwnPointer>;
   using SkipWaitingCallbacksMap =
       IDMap<blink::WebServiceWorkerSkipWaitingCallbacks, IDMapOwnPointer>;
   using SyncEventCallbacksMap =
-      IDMap<const base::Callback<void(blink::mojom::ServiceWorkerEventStatus)>,
+      IDMap<const mojo::Callback<void(blink::mojom::ServiceWorkerEventStatus)>,
             IDMapOwnPointer>;
 
   explicit WorkerContextData(ServiceWorkerContextClient* owner)
       : weak_factory(owner), proxy_weak_factory(owner->proxy_) {}
 
   ~WorkerContextData() {
     DCHECK(thread_checker.CalledOnValidThread());
   }
 
   // Pending callbacks for GetClientDocuments().
@@ skipping 838 matching lines @@
 }
 
 base::WeakPtr<ServiceWorkerContextClient>
 ServiceWorkerContextClient::GetWeakPtr() {
   DCHECK(worker_task_runner_->RunsTasksOnCurrentThread());
   DCHECK(context_);
   return context_->weak_factory.GetWeakPtr();
 }
 
 }  // namespace content