[Offline pages] Adding in memory request queue store with tests

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,
@@ skipping 11 matching lines @@
                                  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(const SavePageRequest& other)
+    : request_id_(other.request_id_),
+      url_(other.url_),
+      client_id_(other.client_id_),
+      creation_time_(other.creation_time_),
+      activation_time_(other.activation_time_),
+      attempt_count_(other.attempt_count_),
+      last_attempt_time_(other.last_attempt_time_) {}
+
 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)
@@ skipping 16 matching lines @@
   // other cases.
   last_attempt_time_ = start_time;
   ++attempt_count_;
 }
 
 void SavePageRequest::MarkAttemptCompleted() {
   last_attempt_time_ = base::Time();
 }
 
 }  // namespace offline_pages