[Sync] Initial implementation of foreign sessions suggestions 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"
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/suggestions/image_decoder_impl.h"
 #include "chrome/browser/search/suggestions/suggestions_service_factory.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
+#include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/common/channel_info.h"
 #include "components/bookmarks/browser/bookmark_model.h"
+#include "components/browser_sync/browser/profile_sync_service.h"
 #include "components/image_fetcher/image_decoder.h"
 #include "components/image_fetcher/image_fetcher.h"
 #include "components/image_fetcher/image_fetcher_impl.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/keyed_service/core/service_access_type.h"
 #include "components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h"
 #include "components/ntp_snippets/category_factory.h"
 #include "components/ntp_snippets/content_suggestions_service.h"
 #include "components/ntp_snippets/features.h"
 #include "components/ntp_snippets/ntp_snippets_constants.h"
 #include "components/ntp_snippets/ntp_snippets_database.h"
 #include "components/ntp_snippets/ntp_snippets_fetcher.h"
 #include "components/ntp_snippets/ntp_snippets_scheduler.h"
 #include "components/ntp_snippets/ntp_snippets_service.h"
 #include "components/ntp_snippets/ntp_snippets_status_service.h"
+#include "components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.h"
+#include "components/ntp_snippets/sessions/tab_delegate_sync_adapter.h"
 #include "components/prefs/pref_service.h"
 #include "components/safe_json/safe_json_parser.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/version_info/version_info.h"
 #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"
@@ skipping 17 matching lines @@
 using history::HistoryService;
 using image_fetcher::ImageFetcherImpl;
 using ntp_snippets::BookmarkSuggestionsProvider;
 using ntp_snippets::CategoryFactory;
 using ntp_snippets::ContentSuggestionsService;
 using ntp_snippets::NTPSnippetsDatabase;
 using ntp_snippets::NTPSnippetsFetcher;
 using ntp_snippets::NTPSnippetsService;
 using ntp_snippets::NTPSnippetsScheduler;
 using ntp_snippets::NTPSnippetsStatusService;
+using ntp_snippets::ForeignSessionsSuggestionsProvider;
+using ntp_snippets::TabDelegateSyncAdapter;
 using suggestions::ImageDecoderImpl;
 using suggestions::SuggestionsService;
 using suggestions::SuggestionsServiceFactory;
+using sync_driver::SyncService;
 
 namespace {
 
 // Clear the tasks that can be scheduled by running services.
 void ClearScheduledTasks() {
 #if defined(OS_ANDROID)
   NTPSnippetsLauncher::Get()->Unschedule();
 #endif  // OS_ANDROID
 }
 
@@ skipping 76 matching lines @@
           base::MakeUnique<ImageFetcherImpl>(
               base::MakeUnique<ImageDecoderImpl>(), request_context.get()),
           base::MakeUnique<ImageDecoderImpl>(),
           base::MakeUnique<NTPSnippetsDatabase>(database_dir, task_runner),
           base::MakeUnique<NTPSnippetsStatusService>(signin_manager,
                                                      pref_service));
   service->set_ntp_snippets_service(ntp_snippets_service.get());
   service->RegisterProvider(std::move(ntp_snippets_service));
 }
 
+void RegisterForeignSessionsProvider(SyncService* sync_service,
+                                     ContentSuggestionsService* service,
+                                     CategoryFactory* category_factory,
+                                     PrefService* pref_service,
+                                     Profile* profile) {

[Marc Treib, 2016/09/16 12:26:48]

profile doesn't seem to be required

[skym, 2016/09/16 18:18:47]

Done.

+  std::unique_ptr<TabDelegateSyncAdapter> sync_adapter =
+      base::MakeUnique<TabDelegateSyncAdapter>(sync_service);
+  std::unique_ptr<ForeignSessionsSuggestionsProvider>
+      foreign_sessions_suggestions_provider =
+          base::MakeUnique<ForeignSessionsSuggestionsProvider>(
+              service, category_factory, std::move(sync_adapter), pref_service);
+  service->RegisterProvider(std::move(foreign_sessions_suggestions_provider));
+}
+
 }  // namespace
 
 // static
 ContentSuggestionsServiceFactory*
 ContentSuggestionsServiceFactory::GetInstance() {
   return base::Singleton<ContentSuggestionsServiceFactory>::get();
 }
 
 // static
 ContentSuggestionsService* ContentSuggestionsServiceFactory::GetForProfile(
     Profile* profile) {
   return static_cast<ContentSuggestionsService*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 ContentSuggestionsServiceFactory::ContentSuggestionsServiceFactory()
     : BrowserContextKeyedServiceFactory(
           "ContentSuggestionsService",
           BrowserContextDependencyManager::GetInstance()) {
   DependsOn(BookmarkModelFactory::GetInstance());
   DependsOn(HistoryServiceFactory::GetInstance());
 #if defined(OS_ANDROID)
   DependsOn(OfflinePageModelFactory::GetInstance());
 #endif  // OS_ANDROID
   DependsOn(ProfileOAuth2TokenServiceFactory::GetInstance());
+  DependsOn(ProfileSyncServiceFactory::GetInstance());
   DependsOn(SigninManagerFactory::GetInstance());
   DependsOn(SuggestionsServiceFactory::GetInstance());
 }
 
 ContentSuggestionsServiceFactory::~ContentSuggestionsServiceFactory() {}
 
 KeyedService* ContentSuggestionsServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   using State = ContentSuggestionsService::State;
   Profile* profile = Profile::FromBrowserContext(context);
@@ skipping 22 matching lines @@
       OfflinePageModelFactory::GetForBrowserContext(profile);
 #endif  // OS_ANDROID
   BookmarkModel* bookmark_model =
       BookmarkModelFactory::GetForBrowserContext(profile);
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile);
   OAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
   SuggestionsService* suggestions_service =
       SuggestionsServiceFactory::GetForProfile(profile);
+  SyncService* sync_service =
+      ProfileSyncServiceFactory::GetSyncServiceForBrowserContext(profile);
 
 #if defined(OS_ANDROID)
   bool recent_tabs_enabled = base::FeatureList::IsEnabled(
       ntp_snippets::kRecentOfflineTabSuggestionsFeature);
   bool downloads_enabled =
       base::FeatureList::IsEnabled(ntp_snippets::kDownloadSuggestionsFeature);
   if (recent_tabs_enabled || downloads_enabled) {
     RegisterOfflinePageProvider(offline_page_model, service, category_factory,
                                 pref_service);
   }
@@ skipping 11 matching lines @@
           ntp_snippets::kPhysicalWebPageSuggestionsFeature)) {
     RegisterPhysicalWebPageProvider(service, category_factory);
   }
 #endif  // OS_ANDROID
 
   if (base::FeatureList::IsEnabled(ntp_snippets::kArticleSuggestionsFeature)) {
     RegisterArticleProvider(signin_manager, token_service, suggestions_service,
                             service, category_factory, pref_service, profile);
   }
 
+  if (base::FeatureList::IsEnabled(
+          ntp_snippets::kForeignSessionsSuggestionsFeature)) {
+    RegisterForeignSessionsProvider(sync_service, service, category_factory,
+                                    pref_service, profile);
+  }
+
   return service;
 }