[Suggestions] Move ImageManager to the component

components/suggestions/image_fetcher_delegate.h

+// Copyright 2014 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_SUGGESTIONS_IMAGE_FETCHER_DELEGATE_H_
+#define COMPONENTS_SUGGESTIONS_IMAGE_FETCHER_DELEGATE_H_
+
+class GURL;
+class SkBitmap;
+
+namespace suggestions {
+
+class ImageFetcherDelegate {
+ public:
+  ImageFetcherDelegate() {}
+
+  // Called when an image was fetched. |url| represents the website for which
+  // the image was fetched. |bitmap| is deleted once out of scope.
+  virtual void OnImageFetched(const GURL& url, const SkBitmap* bitmap) = 0;
+
+ protected:
+  virtual ~ImageFetcherDelegate() {}

[huangs, 2014/09/24 15:46:57]

Please comment on why destructor is in private.

[Mathieu, 2014/09/24 19:31:30]

Acknowledged.

+
+  DISALLOW_COPY_AND_ASSIGN(ImageFetcherDelegate);
+};
+
+}  // namespace suggestions
+
+#endif  // COMPONENTS_SUGGESTIONS_IMAGE_FETCHER_DELEGATE_H_