Refactored signin/sync error controllers for the avatar button

chrome/browser/ui/views/profiles/new_avatar_button.h

 // Copyright 2014 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_VIEWS_PROFILES_NEW_AVATAR_BUTTON_H_
 #define CHROME_BROWSER_UI_VIEWS_PROFILES_NEW_AVATAR_BUTTON_H_
 
 #include "base/macros.h"
 #include "chrome/browser/profiles/profile_attributes_storage.h"
+#include "chrome/browser/ui/avatar_button_error_controller.h"
+#include "chrome/browser/ui/avatar_button_error_controller_delegate.h"
 #include "chrome/browser/ui/views/profiles/avatar_button_style.h"
-#include "components/signin/core/browser/signin_error_controller.h"
-#include "components/sync_driver/sync_error_controller.h"
 #include "ui/views/controls/button/label_button.h"
 
 class AvatarButtonDelegate;
 class Profile;
 
 // Avatar button that displays the active profile's name in the caption area.
 class NewAvatarButton : public views::LabelButton,
+                        public AvatarButtonErrorControllerDelegate,
                         public ProfileAttributesStorage::Observer {
  public:
-  class SigninErrorObserver : public SigninErrorController::Observer {
-   public:
-    SigninErrorObserver(NewAvatarButton* parent_button, Profile* profile);
-    ~SigninErrorObserver() override;
-
-   private:
-    // SigninErrorController::Observer:
-    void OnErrorChanged() override;
-
-    NewAvatarButton* parent_button_;
-    Profile* profile_;
-
-    DISALLOW_COPY_AND_ASSIGN(SigninErrorObserver);
-  };
-
-  class SyncErrorObserver : public SyncErrorController::Observer {
-   public:
-    SyncErrorObserver(NewAvatarButton* parent_button, Profile* profile);
-    ~SyncErrorObserver() override;
-
-   private:
-    // SyncErrorController::Observer:
-    void OnErrorChanged() override;
-
-    NewAvatarButton* parent_button_;
-    Profile* profile_;
-
-    DISALLOW_COPY_AND_ASSIGN(SyncErrorObserver);
-  };
-
   NewAvatarButton(AvatarButtonDelegate* delegate,
                   AvatarButtonStyle button_style,
                   Profile* profile);
   ~NewAvatarButton() override;
 
   // Views::LabelButton
   bool OnMousePressed(const ui::MouseEvent& event) override;
   void OnMouseReleased(const ui::MouseEvent& event) override;
 
   // Views
   void OnGestureEvent(ui::GestureEvent* event) override;
 
-  void OnErrorChanged();
-
  private:
   friend class ProfileChooserViewExtensionsTest;
 
+  // AvatarButtonErrorControllerDelegate:
+  void OnAvatarErrorChanged() override;
+
   // ProfileAttributesStorage::Observer:
   void OnProfileAdded(const base::FilePath& profile_path) override;
   void OnProfileWasRemoved(const base::FilePath& profile_path,
                            const base::string16& profile_name) override;
   void OnProfileNameChanged(const base::FilePath& profile_path,
                             const base::string16& old_profile_name) override;
   void OnProfileSupervisedUserIdChanged(
       const base::FilePath& profile_path) override;
 
-  // Called when the profile info cache has changed, which means we might
-  // have to update the icon/text of the button.
+  // Called when the profile info cache or signin/sync error has changed, which
+  // means we might have to update the icon/text of the button.
   void Update();
 
-  SigninErrorObserver signin_error_observer_;
-  SyncErrorObserver sync_error_observer_;
-
   AvatarButtonDelegate* delegate_;
+  AvatarButtonErrorController error_controller_;
   Profile* profile_;
 
-  // Whether the signed in profile has any authentication error or sync error.
-  // Used to display an error icon next to the button text.
-  bool has_error_;
-
   // The icon displayed instead of the profile name in the local profile case.
   // Different assets are used depending on the OS version.
   gfx::ImageSkia generic_avatar_;
 
   // This is used to check if the bubble was showing during the mouse pressed
   // event. If this is true then the mouse released event is ignored to prevent
   // the bubble from reshowing.
   bool suppress_mouse_released_action_;
 
   DISALLOW_COPY_AND_ASSIGN(NewAvatarButton);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PROFILES_NEW_AVATAR_BUTTON_H_