Improve the page download:

components/offline_pages/background/request_coordinator_unittest.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/request_coordinator.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
@@ skipping 930 matching lines @@
   PumpLoop();
 
   // Since offliner was started, it will have seen cancel call.
   EXPECT_TRUE(OfflinerWasCanceled());
 }
 
 TEST_F(RequestCoordinatorTest, MarkRequestCompleted) {
   // Add a request to the queue.
   offline_pages::SavePageRequest request1(kRequestId1, kUrl1, kClientId1,
                                           base::Time::Now(), kUserRequested);
-  coordinator()->queue()->AddRequest(
-      request1, base::Bind(&RequestCoordinatorTest::AddRequestDone,
-                           base::Unretained(this)));
+  int64_t request_id = coordinator()->SavePageLater(
+      kUrl1, kClientId1, kUserRequested,
+      RequestCoordinator::RequestAvailability::DISABLED_FOR_OFFLINER);
   PumpLoop();
+  EXPECT_NE(request_id, 0l);
 
   // Ensure the start processing request stops before the completion callback.
   EnableOfflinerCallback(false);
 
   DeviceConditions device_conditions(false, 75,
                                      net::NetworkChangeNotifier::CONNECTION_3G);
   base::Callback<void(bool)> callback = base::Bind(
       &RequestCoordinatorTest::EmptyCallbackFunction, base::Unretained(this));
   EXPECT_TRUE(coordinator()->StartProcessing(device_conditions, callback));
 
   // Call the method under test, making sure we send SUCCESS to the observer.
-  coordinator()->MarkRequestCompleted(kRequestId1);
+  coordinator()->MarkRequestCompleted(request_id);
   PumpLoop();
 
   // Our observer should have seen SUCCESS instead of REMOVED.
   EXPECT_EQ(RequestCoordinator::BackgroundSavePageResult::SUCCESS,
             observer().last_status());
   EXPECT_TRUE(observer().completed_called());
 }
 
 TEST_F(RequestCoordinatorTest, WatchdogTimeout) {
   // Build a request to use with the pre-renderer, and put it on the queue.
@@ skipping 251 matching lines @@
   // Now whether processing triggered immediately depends on whether test
   // is run on svelte device or not.
   if (base::SysInfo::IsLowEndDevice()) {
     EXPECT_FALSE(is_busy());
   } else {
     EXPECT_TRUE(is_busy());
   }
 }
 
 }  // namespace offline_pages