chromium/components/omnibox/browser/remote_suggestions_service.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_OMNIBOX_BROWSER_REMOTE_SUGGESTIONS_SERVICE_H_
#define COMPONENTS_OMNIBOX_BROWSER_REMOTE_SUGGESTIONS_SERVICE_H_

#include <memory>
#include <string>

#include "base/functional/callback_forward.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "base/unguessable_token.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/omnibox/browser/autocomplete_input.h"
#include "components/search_engines/template_url.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "url/gurl.h"

class DocumentSuggestionsService;

namespace network {
class SharedURLLoaderFactory;
class SimpleURLLoader;
struct ResourceRequest;
}  // namespace network

// The types of requests for remote suggestions.
// These values are written to logs. New enum values can be added, but existing
// enums must never be renumbered or deleted and reused.
enum class RemoteRequestType { … };

// The event types recorded by the providers for remote suggestions. Each event
// must be logged at most once from when the provider is started until it is
// stopped.
// These values are written to logs. New enum values can be added, but existing
// enums must never be renumbered or deleted and reused.
enum class RemoteRequestEvent { … };

// A service to fetch suggestions from a search provider's suggest endpoint.
// Used by ZeroSuggestProvider, SearchProvider, DocumentProvider, and
// ImageService.
//
// This service is always sent the user's authentication state, so the
// suggestions always can be personalized. This service is also sometimes sent
// the user's current URL, so the suggestions are sometimes also contextual.
class RemoteSuggestionsService : public KeyedService { … };

#endif  // COMPONENTS_OMNIBOX_BROWSER_REMOTE_SUGGESTIONS_SERVICE_H_