[OfflinePages] Resuming a SavePageRequest now may start processing if network is connected.

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 833 matching lines @@
 }
 
 TEST_F(RequestCoordinatorTest, SavePageDoesntStartProcessingWhenDisconnected) {
   SetNetworkConditionsForTest(
       net::NetworkChangeNotifier::ConnectionType::CONNECTION_NONE);
   EXPECT_TRUE(coordinator()->SavePageLater(kUrl1, kClientId1, kUserRequested));
   PumpLoop();
   EXPECT_FALSE(is_busy());
 }
 
+TEST_F(RequestCoordinatorTest, ResumeStartsProcessingWhenConnected) {
+  SetNetworkConditionsForTest(
+      net::NetworkChangeNotifier::ConnectionType::CONNECTION_NONE);
+
+  // 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)));
+  PumpLoop();
+  EXPECT_FALSE(is_busy());
+
+  // Pause the request.
+  std::vector<int64_t> request_ids;
+  request_ids.push_back(kRequestId1);
+  coordinator()->PauseRequests(request_ids);
+  PumpLoop();
+
+  // Resume the request while disconnected.
+  coordinator()->ResumeRequests(request_ids);
+  PumpLoop();
+  EXPECT_FALSE(is_busy());
+
+  // Pause the request again.
+  coordinator()->PauseRequests(request_ids);
+  PumpLoop();
+
+  // Now simulate being connected.
+  SetNetworkConditionsForTest(
+      net::NetworkChangeNotifier::ConnectionType::CONNECTION_3G);
+
+  // Resume the request while connected.
+  coordinator()->ResumeRequests(request_ids);
+  EXPECT_FALSE(is_busy());
+  PumpLoop();
+  EXPECT_TRUE(is_busy());
+}
+
 }  // namespace offline_pages