// Copyright 2019 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.

#ifndef IOS_CHROME_BROWSER_UI_OMNIBOX_POPUP_FAVICON_RETRIEVER_H_
#define IOS_CHROME_BROWSER_UI_OMNIBOX_POPUP_FAVICON_RETRIEVER_H_

class GURL;

// A favicon retriever.
// This protocol is intended to be used in Showcase, abstracting out the actual
// favicon retrieving logic from the View layer.
@protocol FaviconRetriever <NSObject>
// Fetches favicon given a page URL.
// |completion| is guaranteed to only be called on main thread, but could be
// called at any time, even before this returns.
// It might never be called if the favicon is not available.
// It might be called multiple times per request.
- (void)fetchFavicon:(GURL)pageURL completion:(void (^)(UIImage*))completion;
@end

#endif  // IOS_CHROME_BROWSER_UI_OMNIBOX_POPUP_FAVICON_RETRIEVER_H_