Convert //ios from scoped_ptr to std::unique_ptr.

ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc

Index: ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc
diff --git a/ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc b/ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc
index 1a7eb1e73c93c14fa9fa1e75e014a3b1ad48db48..e101c6aca8b54275c8d408f37ed05243b334a23f 100644
--- a/ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc
+++ b/ios/chrome/browser/dom_distiller/dom_distiller_service_factory.cc
@@ -8,6 +8,7 @@
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "components/dom_distiller/core/article_entry.h"
@@ -32,10 +33,11 @@ class DomDistillerKeyedService
       public dom_distiller::DomDistillerService {
  public:
   DomDistillerKeyedService(
-      scoped_ptr<dom_distiller::DomDistillerStoreInterface> store,
-      scoped_ptr<dom_distiller::DistillerFactory> distiller_factory,
-      scoped_ptr<dom_distiller::DistillerPageFactory> distiller_page_factory,
-      scoped_ptr<dom_distiller::DistilledPagePrefs> distilled_page_prefs)
+      std::unique_ptr<dom_distiller::DomDistillerStoreInterface> store,
+      std::unique_ptr<dom_distiller::DistillerFactory> distiller_factory,
+      std::unique_ptr<dom_distiller::DistillerPageFactory>
+          distiller_page_factory,
+      std::unique_ptr<dom_distiller::DistilledPagePrefs> distilled_page_prefs)
       : DomDistillerService(std::move(store),
                             std::move(distiller_factory),
                             std::move(distiller_page_factory),
@@ -71,34 +73,36 @@ DomDistillerServiceFactory::DomDistillerServiceFactory()
 DomDistillerServiceFactory::~DomDistillerServiceFactory() {
 }
 
-scoped_ptr<KeyedService> DomDistillerServiceFactory::BuildServiceInstanceFor(
+std::unique_ptr<KeyedService>
+DomDistillerServiceFactory::BuildServiceInstanceFor(
     web::BrowserState* context) const {
   scoped_refptr<base::SequencedTaskRunner> background_task_runner =
       web::WebThread::GetBlockingPool()->GetSequencedTaskRunner(
           web::WebThread::GetBlockingPool()->GetSequenceToken());
 
-  scoped_ptr<leveldb_proto::ProtoDatabaseImpl<ArticleEntry>> db(
+  std::unique_ptr<leveldb_proto::ProtoDatabaseImpl<ArticleEntry>> db(
       new leveldb_proto::ProtoDatabaseImpl<ArticleEntry>(
           background_task_runner));
 
   base::FilePath database_dir(
       context->GetStatePath().Append(FILE_PATH_LITERAL("Articles")));
 
-  scoped_ptr<DomDistillerStore> dom_distiller_store(
+  std::unique_ptr<DomDistillerStore> dom_distiller_store(
       new DomDistillerStore(std::move(db), database_dir));
 
-  scoped_ptr<DistillerPageFactory> distiller_page_factory(
+  std::unique_ptr<DistillerPageFactory> distiller_page_factory(
       new DistillerPageFactoryIOS(context));
-  scoped_ptr<DistillerURLFetcherFactory> distiller_url_fetcher_factory(
+  std::unique_ptr<DistillerURLFetcherFactory> distiller_url_fetcher_factory(
       new DistillerURLFetcherFactory(context->GetRequestContext()));
 
   dom_distiller::proto::DomDistillerOptions options;
-  scoped_ptr<DistillerFactory> distiller_factory(new DistillerFactoryImpl(
+  std::unique_ptr<DistillerFactory> distiller_factory(new DistillerFactoryImpl(
       std::move(distiller_url_fetcher_factory), options));
-  scoped_ptr<DistilledPagePrefs> distilled_page_prefs(new DistilledPagePrefs(
-      ios::ChromeBrowserState::FromBrowserState(context)->GetPrefs()));
+  std::unique_ptr<DistilledPagePrefs> distilled_page_prefs(
+      new DistilledPagePrefs(
+          ios::ChromeBrowserState::FromBrowserState(context)->GetPrefs()));
 
-  return make_scoped_ptr(new DomDistillerKeyedService(
+  return base::WrapUnique(new DomDistillerKeyedService(
       std::move(dom_distiller_store), std::move(distiller_factory),
       std::move(distiller_page_factory), std::move(distilled_page_prefs)));
 }