[NTPSnippets] Show all downloads on the NTP (3/3): Downloads provider.

chrome/browser/ntp_snippets/content_suggestions_service_factory.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 "chrome/browser/ntp_snippets/content_suggestions_service_factory.h"
 
 #include <utility>
 
 #include "base/feature_list.h"
 #include "base/files/file_path.h"
@@ skipping 37 matching lines @@
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/storage_partition.h"
 #include "google_apis/google_api_keys.h"
 #include "net/url_request/url_request_context_getter.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/android/chrome_feature_list.h"
 #include "chrome/browser/android/ntp/ntp_snippets_launcher.h"
 #include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
+#include "chrome/browser/ntp_snippets/download_suggestions_provider.h"
 #include "components/ntp_snippets/offline_pages/offline_page_proxy.h"
 #include "components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.h"
 #include "components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.h"
 #include "components/offline_pages/offline_page_model.h"
 
+using content::DownloadManager;
 using ntp_snippets::OfflinePageProxy;
 using ntp_snippets::PhysicalWebPageSuggestionsProvider;
 using ntp_snippets::RecentTabSuggestionsProvider;
 using offline_pages::OfflinePageModel;
 using offline_pages::OfflinePageModelFactory;
 #endif  // OS_ANDROID
 
 using bookmarks::BookmarkModel;
 using content::BrowserThread;
 using history::HistoryService;
@@ skipping 24 matching lines @@
 #if defined(OS_ANDROID)
 void RegisterRecentTabProvider(
     const scoped_refptr<OfflinePageProxy>& offline_page_proxy,
     ContentSuggestionsService* service,
     CategoryFactory* category_factory,
     PrefService* pref_service) {
   auto provider = base::MakeUnique<RecentTabSuggestionsProvider>(
       service, category_factory, offline_page_proxy, pref_service);
   service->RegisterProvider(std::move(provider));
 }
+
+void RegisterDownloadsProvider(
+    const scoped_refptr<OfflinePageProxy>& offline_page_proxy,

[Bernhard Bauer, 2016/10/26 10:19:32]

Per
https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md...,
scoped_refptr's should be passed without const-ref (and then std::move()d if
necessary).

[vitaliii, 2016/10/27 15:49:19]

Done.

+    DownloadManager* download_manager,
+    ContentSuggestionsService* service,
+    CategoryFactory* category_factory,
+    PrefService* pref_service) {
+  bool download_manager_ui_enabled =
+      base::FeatureList::IsEnabled(chrome::android::kDownloadsUiFeature);
+  auto provider = base::MakeUnique<DownloadSuggestionsProvider>(
+      service, category_factory, offline_page_proxy, download_manager,
+      pref_service, download_manager_ui_enabled);
+  service->RegisterProvider(std::move(provider));
+}
 #endif  // OS_ANDROID
 
 void RegisterBookmarkProvider(BookmarkModel* bookmark_model,
                               ContentSuggestionsService* service,
                               CategoryFactory* category_factory,
                               PrefService* pref_service) {
   auto provider = base::MakeUnique<BookmarkSuggestionsProvider>(
       service, category_factory, bookmark_model, pref_service);
   service->RegisterProvider(std::move(provider));
 }
@@ skipping 121 matching lines @@
     ClearScheduledTasks();
     return service;
   }
 
   CategoryFactory* category_factory = service->category_factory();
 #if defined(OS_ANDROID)
   OfflinePageModel* offline_page_model =
       OfflinePageModelFactory::GetForBrowserContext(profile);
   scoped_refptr<OfflinePageProxy> offline_page_proxy(
       new OfflinePageProxy(offline_page_model));
+  DownloadManager* download_manager =
+      content::BrowserContext::GetDownloadManager(profile);
 #endif  // OS_ANDROID
   BookmarkModel* bookmark_model =
       BookmarkModelFactory::GetForBrowserContext(profile);
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile);
   OAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
   SyncService* sync_service =
       ProfileSyncServiceFactory::GetSyncServiceForBrowserContext(profile);
   LanguageModel* language_model =
       LanguageModelFactory::GetInstance()->GetForBrowserContext(profile);
 
 #if defined(OS_ANDROID)
   if (base::FeatureList::IsEnabled(
           ntp_snippets::kRecentOfflineTabSuggestionsFeature)) {
     RegisterRecentTabProvider(offline_page_proxy, service, category_factory,
                               pref_service);
   }
+
+  if (base::FeatureList::IsEnabled(ntp_snippets::kDownloadSuggestionsFeature)) {
+    RegisterDownloadsProvider(offline_page_proxy, download_manager, service,
+                              category_factory, pref_service);
+  }
 #endif  // OS_ANDROID
 
   // |bookmark_model| can be null in tests.
   if (base::FeatureList::IsEnabled(ntp_snippets::kBookmarkSuggestionsFeature) &&
       bookmark_model) {
     RegisterBookmarkProvider(bookmark_model, service, category_factory,
                              pref_service);
   }
 
 #if defined(OS_ANDROID)
@@ skipping 10 matching lines @@
   }
 
   if (base::FeatureList::IsEnabled(
           ntp_snippets::kForeignSessionsSuggestionsFeature)) {
     RegisterForeignSessionsProvider(sync_service, service, category_factory,
                                     pref_service);
   }
 
   return service;
 }