Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/extension_sync_service.h

Index: chrome/browser/extensions/extension_sync_service.h
diff --git a/chrome/browser/extensions/extension_sync_service.h b/chrome/browser/extensions/extension_sync_service.h
index 4854fa9dfea1d2793fe9424f4cbd1a3d4a393a65..041d1e8e9d773b669ac66ab2c8a16bbb90e9d3cc 100644
--- a/chrome/browser/extensions/extension_sync_service.h
+++ b/chrome/browser/extensions/extension_sync_service.h
@@ -57,8 +57,8 @@ class ExtensionSyncService : public syncer::SyncableService,
   syncer::SyncMergeResult MergeDataAndStartSyncing(
       syncer::ModelType type,
       const syncer::SyncDataList& initial_sync_data,
-      scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
-      scoped_ptr<syncer::SyncErrorFactory> sync_error_factory) override;
+      std::unique_ptr<syncer::SyncChangeProcessor> sync_processor,
+      std::unique_ptr<syncer::SyncErrorFactory> sync_error_factory) override;
   void StopSyncing(syncer::ModelType type) override;
   syncer::SyncDataList GetAllSyncData(syncer::ModelType type) const override;
   syncer::SyncError ProcessSyncChanges(