[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/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 "net/url_request/url_request_context_getter.h"
 
@@ skipping 16 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 suggestions::ImageDecoderImpl;
 using suggestions::SuggestionsService;
 using suggestions::SuggestionsServiceFactory;
 
 namespace {
 
 // Clear the tasks that can be scheduled by running services.
 void ClearScheduledTasks() {
 #if defined(OS_ANDROID)
   NTPSnippetsLauncher::Get()->Unschedule();
@@ skipping 106 matching lines @@
           "ContentSuggestionsService",
           BrowserContextDependencyManager::GetInstance()) {
   DependsOn(BookmarkModelFactory::GetInstance());
   DependsOn(HistoryServiceFactory::GetInstance());
 #if defined(OS_ANDROID)
   DependsOn(OfflinePageModelFactory::GetInstance());
 #endif  // OS_ANDROID
   DependsOn(ProfileOAuth2TokenServiceFactory::GetInstance());
   DependsOn(SigninManagerFactory::GetInstance());
   DependsOn(SuggestionsServiceFactory::GetInstance());
+  DependsOn(ProfileSyncServiceFactory::GetInstance());

[Marc Treib, 2016/08/29 09:18:50]

nit: please keep alphabetized

[skym, 2016/09/15 23:18:16]

Done.

 }
 
 ContentSuggestionsServiceFactory::~ContentSuggestionsServiceFactory() {}
 
 KeyedService* ContentSuggestionsServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   using State = ContentSuggestionsService::State;
   Profile* profile = Profile::FromBrowserContext(context);
   DCHECK(!profile->IsOffTheRecord());
 
@@ skipping 49 matching lines @@
     RegisterPhysicalWebPageProvider(service, category_factory);
   }
 #endif  // OS_ANDROID
 
   if (base::FeatureList::IsEnabled(ntp_snippets::kArticleSuggestionsFeature)) {
     RegisterArticleProvider(signin_manager, token_service, history_service,
                             suggestions_service, service, category_factory,
                             pref_service, profile);
   }
 
+  if (base::FeatureList::IsEnabled(
+          ntp_snippets::kForeignSessionsSuggestionsFeature)) {
+    sync_driver::SyncService* sync_service =

[Marc Treib, 2016/08/29 09:18:50]

Please put this into a RegisterSessionsProvider helper function, like the others

[skym, 2016/09/15 23:18:16]

Done.

+        ProfileSyncServiceFactory::GetSyncServiceForBrowserContext(profile);
+    std::unique_ptr<ForeignSessionsSuggestionsProvider>
+        foreign_sessions_suggestions_provider =
+            base::MakeUnique<ForeignSessionsSuggestionsProvider>(
+                service, service->category_factory(), sync_service,
+                profile->GetPrefs());
+    service->RegisterProvider(std::move(foreign_sessions_suggestions_provider));
+  }
+
   return service;
 }