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diff --git a/chrome/browser/ui/webui/options2/chromeos/user_image_source.h b/chrome/browser/ui/webui/options2/chromeos/user_image_source.h
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+// Copyright (c) 2011 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_UI_WEBUI_OPTIONS2_CHROMEOS_USER_IMAGE_SOURCE_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_USER_IMAGE_SOURCE_H_
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
+
+namespace chromeos {
+
+// UserImageSource is the data source that serves user images for users that
+// have it.
+class UserImageSource : public ChromeURLDataManager::DataSource {
+ public:
+  UserImageSource();
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_incognito,
+                                int request_id) OVERRIDE;
+
+  virtual std::string GetMimeType(const std::string&) const OVERRIDE;
+
+  // Returns PNG encoded image for user with specified email.
+  // If there's no user with such email, returns the default image.
+  std::vector<unsigned char> GetUserImage(const std::string& email) const;
+
+ private:
+  virtual ~UserImageSource();
+
+  DISALLOW_COPY_AND_ASSIGN(UserImageSource);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_USER_IMAGE_SOURCE_H_