Simplify WebUI data sources. Currently WebUI data sources implement a URLDataSourceDelegate interfa…

chrome/browser/ui/webui/options/chromeos/user_image_source.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_UI_WEBUI_OPTIONS_CHROMEOS_USER_IMAGE_SOURCE_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_USER_IMAGE_SOURCE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "content/public/browser/url_data_source_delegate.h"
+#include "content/public/browser/url_data_source.h"
 #include "ui/base/layout.h"
 
 namespace base {
 class RefCountedMemory;
 }
 
 namespace chromeos {
 namespace options {
 
 // UserImageSource is the data source that serves user images for users that
 // have it.
-class UserImageSource : public content::URLDataSourceDelegate {
+class UserImageSource : public content::URLDataSource {
  public:
   UserImageSource();
 
-  // content::URLDataSourceDelegate implementation.
+  // content::URLDataSource implementation.
   virtual std::string GetSource() OVERRIDE;
-  virtual void StartDataRequest(const std::string& path,
-                                bool is_incognito,
-                                int request_id) OVERRIDE;
+  virtual void StartDataRequest(
+      const std::string& path,
+      bool is_incognito,
+      const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
   virtual std::string GetMimeType(const std::string& path) const OVERRIDE;
 
   // Returns PNG or GIF (when possible and if |is_image_animated| flag
   // is true) encoded image for user with specified email.  If there's
   // no user with such email, returns the first default image.
   base::RefCountedMemory* GetUserImage(const std::string& email,
                                        bool is_image_animated,
                                        ui::ScaleFactor scale_factor) const;
 
  private:
   virtual ~UserImageSource();
 
   DISALLOW_COPY_AND_ASSIGN(UserImageSource);
 };
 
 }  // namespace options
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_USER_IMAGE_SOURCE_H_