Fix crashes due to gfx::Image unsafe thread passing

components/enhanced_bookmarks/image_record.h

 // Copyright 2015 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 COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_RECORD_H_
 #define COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_RECORD_H_
 
+#include "base/memory/ref_counted.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/image/image.h"
 #include "url/gurl.h"
 
 namespace enhanced_bookmarks {
 
 // Defines a record of a bookmark image in the ImageStore.
-struct ImageRecord {
-  ImageRecord() : image(), url(), dominant_color(SK_ColorBLACK) {}
-  ImageRecord(const gfx::Image& image, const GURL& url, SkColor dominant_color)
-      : image(image), url(url), dominant_color(dominant_color) {}
+class ImageRecord :  public base::RefCountedThreadSafe<ImageRecord> {
+ public:
+  ImageRecord(scoped_ptr<gfx::Image> image,
+              const GURL& url,
+              SkColor dominant_color);
+  ImageRecord(scoped_ptr<gfx::Image> image, const GURL& url);
+  ImageRecord();
 
   // The image data.
-  gfx::Image image;
+  scoped_ptr<gfx::Image> image;
   // The URL that hosts the image.
   GURL url;
   // The dominant color of the image.
   SkColor dominant_color;
+
+ private:
+  friend class base::RefCountedThreadSafe<ImageRecord>;
+
+  ~ImageRecord();
 };
 
 }  // namespace enhanced_bookmarks
 
 #endif  // COMPONENTS_ENHANCED_BOOKMARKS_IMAGE_RECORD_H_