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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_STORE_UTIL_H_
      6 #define COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_STORE_UTIL_H_
      7 
      8 #include "base/memory/ref_counted_memory.h"
      9 #include "ui/gfx/geometry/size.h"
     10 #include "ui/gfx/image/image.h"
     11 
     12 namespace enhanced_bookmarks {
     13 // The two methods below archive and unarchive an image to and from a bag of
     14 // bytes. There is no API on gfx::Image capable of doing it while preserving the
     15 // scale of the image.
     16 
     17 // Encode |image| to bytes, that can be decoded using the below |ImageForBytes|
     18 // function. If encoding fails, then returned scoped_refptr has NULL.
     19 scoped_refptr<base::RefCountedMemory> BytesForImage(const gfx::Image& image);
     20 
     21 // Decode the image bytes encoded by the above |BytesForImage| function and
     22 // returns a gfx::Image. If decoding fails, returns an empty image.
     23 gfx::Image ImageForBytes(const scoped_refptr<base::RefCountedMemory>& data);
     24 
     25 }
     26 
     27 #endif  // COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_STORE_UTIL_H_
     28