cros: Fold UserImageModel into UserImageScreen

chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h

Index: chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
index 85f0392b433f5aa3a480dabbbb1b101bc13ffc1f..aaf865dbe824bfeb1cbe05753b51e3385d26333e 100644
--- a/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
@@ -24,6 +24,7 @@ class UserImageScreenHandler : public UserImageView, public BaseScreenHandler {
   UserImageScreenHandler();
   ~UserImageScreenHandler() override;
 
+ private:
   // BaseScreenHandler implementation:
   void Initialize() override;
   void DeclareLocalizedValues(
@@ -33,13 +34,12 @@ class UserImageScreenHandler : public UserImageView, public BaseScreenHandler {
   void RegisterMessages() override;
 
   // UserImageView implementation:
-  void Bind(UserImageModel& model) override;
+  void Bind(UserImageScreen* screen) override;
   void Unbind() override;
   void Show() override;
   void Hide() override;
   void HideCurtain() override;
 
- private:
   // Sends image data to the page.
   void HandleGetImages();
 
@@ -66,13 +66,13 @@ class UserImageScreenHandler : public UserImageView, public BaseScreenHandler {
   // Called when the user image screen has been loaded and shown.
   void HandleScreenShown();
 
-  UserImageModel* model_;
+  UserImageScreen* screen_ = nullptr;
 
   // Keeps whether screen should be shown right after initialization.
-  bool show_on_init_;
+  bool show_on_init_ = false;
 
   // Keeps whether screen has loaded all default images and redy to be shown.
-  bool is_ready_;
+  bool is_ready_ = false;
 
   base::Time screen_show_time_;