[Offline Pages] Add new download namespace

components/offline_pages/offline_page_model_impl_unittest.cc

 // Copyright 2015 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/offline_page_model_impl.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <utility>
 
@@ skipping 1050 matching lines @@
 
 TEST_F(OfflinePageModelImplTest, CustomTabsNamespace) {
   SavePage(kTestUrl, ClientId(kCCTNamespace, "123"));
   std::string histogram_name = "OfflinePages.SavePageResult.";
   histogram_name += kCCTNamespace;
 
   histograms().ExpectUniqueSample(histogram_name,
                                   static_cast<int>(SavePageResult::SUCCESS), 1);
 }
 
+TEST_F(OfflinePageModelImplTest, DownloadNamespace) {
+  SavePage(kTestUrl, ClientId(kDownloadNamespace, "123"));
+  std::string histogram_name = "OfflinePages.SavePageResult.";
+  histogram_name += kDownloadNamespace;
+
+  histograms().ExpectUniqueSample(histogram_name,
+                                  static_cast<int>(SavePageResult::SUCCESS), 1);
+}
+
 TEST(CommandLineFlagsTest, OfflineBookmarks) {
   // Disabled by default.
   EXPECT_FALSE(offline_pages::IsOfflineBookmarksEnabled());
 
   // Check if feature is correctly enabled by command-line flag.
   base::FeatureList::ClearInstanceForTesting();
   std::unique_ptr<base::FeatureList> feature_list(new base::FeatureList);
   feature_list->InitializeFromCommandLine(
       offline_pages::kOfflineBookmarksFeature.name, "");
   base::FeatureList::SetInstance(std::move(feature_list));
@@ skipping 63 matching lines @@
   std::unique_ptr<base::FeatureList> feature_list2(new base::FeatureList);
   feature_list2->InitializeFromCommandLine(
       std::string(offline_pages::kOfflineBookmarksFeature.name) + "," +
           offline_pages::kOfflinePagesSharingFeature.name,
       "");
   base::FeatureList::SetInstance(std::move(feature_list2));
   EXPECT_TRUE(offline_pages::IsOfflinePagesSharingEnabled());
 }
 
 }  // namespace offline_pages