Simplify adding callbacks.

chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.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_CHROMEOS_LOGIN_USER_IMAGE_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_USER_IMAGE_SCREEN_HANDLER_H_
 
+#include <string>
+
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "chrome/browser/chromeos/login/screens/user_image_screen_actor.h"
 #include "chrome/browser/image_decoder.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/native_widget_types.h"
 
-namespace base {
-class ListValue;
-}  // namespace base
-
 namespace chromeos {
 
 // WebUI implementation of UserImageScreenActor. It is used to interact
 // with JS page part allowing user to select avatar.
 class UserImageScreenHandler : public UserImageScreenActor,
                                public BaseScreenHandler,
                                public ImageDecoder::Delegate {
  public:
   UserImageScreenHandler();
   virtual ~UserImageScreenHandler();
@@ skipping 15 matching lines @@
   virtual void SetProfilePictureEnabled(bool enabled) OVERRIDE;
 
   // WebUIMessageHandler implementation:
   virtual void RegisterMessages() OVERRIDE;
 
  private:
   // Sends profile image as a data URL to the page.
   void SendProfileImage(const std::string& data_url);
 
   // Sends image data to the page.
-  void HandleGetImages(const base::ListValue* args);
+  void HandleGetImages();
 
   // Handles photo taken with WebRTC UI.
-  void HandlePhotoTaken(const base::ListValue* args);
+  void HandlePhotoTaken(const std::string& image_url);
 
   // Handles camera presence check request.
-  void HandleCheckCameraPresence(const base::ListValue* args);
+  void HandleCheckCameraPresence();
 
   // Handles clicking on default user image.
-  void HandleSelectImage(const base::ListValue* args);
+  void HandleSelectImage(const std::string& image_url,
+                         const std::string& image_type);
 
   // Called when user accept the image closing the screen.
-  void HandleImageAccepted(const base::ListValue* args);
+  void HandleImageAccepted();
 
   // Called when the user image screen has been loaded and shown.
-  void HandleScreenShown(const base::ListValue* args);
+  void HandleScreenShown();
 
   // Called when the camera presence check has been completed.
   void OnCameraPresenceCheckDone();
 
   // Overriden from ImageDecoder::Delegate:
   virtual void OnImageDecoded(const ImageDecoder* decoder,
                               const SkBitmap& decoded_image) OVERRIDE;
   virtual void OnDecodeImageFailed(const ImageDecoder* decoder) OVERRIDE;
 
 
@@ skipping 29 matching lines @@
   base::WeakPtrFactory<UserImageScreenHandler> weak_factory_;
 
   base::Time screen_show_time_;
 
   DISALLOW_COPY_AND_ASSIGN(UserImageScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_USER_IMAGE_SCREEN_HANDLER_H_