Added support for animated/nonanimated user image.

chrome/browser/chromeos/login/user_image.h

+// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_H_
+#pragma once
+
+#include <vector>
+
+#include "third_party/skia/include/core/SkBitmap.h"
+
+namespace chromeos {
+
+// Wrapper class for bitmaps and raw images when it's necessary. Could
+// be used for storing profile images (including animated profile
+// images) and user wallpapers.

[Nikita (slow), 2012/05/30 17:19:11]

nit: why wallpaper is mentioned? Is there a plan to use it here?

[ygorshenin1, 2012/05/31 11:17:46]

As UserImageLoader is used to load both wallpapers and user images, it interface
was changed to return UserImage instead of SkBitmap. So, in some cases UserImage
wraps user's wallpaper.

On 2012/05/30 17:19:11, Nikita Kostylev wrote:

+class UserImage {
+ public:
+  typedef std::vector<unsigned char> RawImage;
+
+  // Constructs UserImage from bitmap. Should be used where only
+  // static image is needed (e.g. wallpapers).
+  explicit UserImage(const SkBitmap& image);
+
+  // Constructs UserImage from raw image and bitmap that should
+  // represent single frame from that one. Can be used for wrapping
+  // animated images.
+  UserImage(const SkBitmap& image, const RawImage& raw_image);
+
+  virtual ~UserImage();
+
+  void SetImage(const SkBitmap& image);

[Nikita (slow), 2012/05/30 17:19:11]

nit: Add comment that setting image would reset raw_image_ as well.

[ygorshenin1, 2012/05/31 11:17:46]

Done.

+  const SkBitmap& image() const { return image_; }
+  bool has_raw_image() const { return has_raw_image_; }
+  bool has_animated_image() const { return has_animated_image_; }
+  const RawImage& raw_image() const { return raw_image_; }
+
+ private:
+  SkBitmap image_;
+  bool has_raw_image_;
+  bool has_animated_image_;
+  RawImage raw_image_;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_H_