[Offline pages] Empty RequestQueue and SavePageRequest

components/offline_pages/background/save_page_request.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/save_page_request.h"
+
+namespace offline_pages {
+
+SavePageRequest::SavePageRequest(int64_t request_id,
+                                 const GURL& url,
+                                 const ClientId& client_id,
+                                 const base::Time& creation_time)
+    : request_id_(request_id),
+      url_(url),
+      client_id_(client_id),
+      creation_time_(creation_time),
+      activation_time_(creation_time),
+      attempt_count_(0) {}
+
+SavePageRequest::SavePageRequest(int64_t request_id,
+                                 const GURL& url,
+                                 const ClientId& client_id,
+                                 const base::Time& creation_time,
+                                 const base::Time& activation_time)
+    : request_id_(request_id),
+      url_(url),
+      client_id_(client_id),
+      creation_time_(creation_time),
+      activation_time_(activation_time),
+      attempt_count_(0) {}
+
+SavePageRequest::~SavePageRequest() {}
+
+// TODO(fgorski): Introduce policy parameter, once policy is available.
+SavePageRequest::Status SavePageRequest::GetStatus(
+    const base::Time& now) const {
+  if (now < activation_time_)
+    return Status::kNotReady;
+
+  // TODO(fgorski): enable check once policy available.
+  // if (attempt_count_ >= policy.max_attempt_count)
+  // return Status::kFailed;
+
+  // TODO(fgorski): enable check once policy available.
+  // if (activation_time_+ policy.page_expiration_interval < now)
+  // return Status::kExpired;
+
+  if (creation_time_ < last_attempt_time_)
+    return Status::kStarted;
+
+  return Status::kPending;
+}
+
+void SavePageRequest::MarkAttemptStarted(const base::Time& start_time) {
+  DCHECK_LE(activation_time_, start_time);
+  // TODO(fgorski): As part of introducing policy in GetStatus, we can make a
+  // check here to ensure we only start tasks in status pending, and bail out in
+  // other cases.
+  last_attempt_time_ = start_time;
+  ++attempt_count_;
+}
+
+void SavePageRequest::MarkAttemptCompleted() {
+  last_attempt_time_ = base::Time();
+}
+
+}  // namespace offline_pages