[Offline pages] Adding GetRequestsTask to RequestQueue

components/offline_pages/background/get_requests_task.cc

+// Copyright 2016 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 "components/offline_pages/background/get_requests_task.h"
+
+#include <vector>
+
+#include "base/bind.h"
+
+namespace offline_pages {
+
+GetRequestsTask::GetRequestsTask(
+    RequestQueueStore* store,
+    const RequestQueueStore::GetRequestsCallback& callback)
+    : store_(store), callback_(callback), weak_ptr_factory_(this) {}
+
+GetRequestsTask::~GetRequestsTask() {}
+
+void GetRequestsTask::Run() {
+  ReadRequest();
+}
+
+void GetRequestsTask::ReadRequest() {
+  store_->GetRequests(base::Bind(&GetRequestsTask::CompleteWithResult,
+                                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void GetRequestsTask::CompleteWithResult(
+    bool success,
+    std::vector<std::unique_ptr<SavePageRequest>> requests) {
+  callback_.Run(success, std::move(requests));
+  TaskComplete();
+}
+
+}  // namespace offline_pages