Fixup icon for new lock screen note action item

ash/system/lock_screen_action/lock_screen_action_tray.h

 // Copyright 2017 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 ASH_SYSTEM_LOCK_SCREEN_ACTION_LOCK_SCREEN_ACTION_TRAY_H_
 #define ASH_SYSTEM_LOCK_SCREEN_ACTION_LOCK_SCREEN_ACTION_TRAY_H_
 
 #include "ash/ash_export.h"
 #include "ash/public/interfaces/tray_action.mojom.h"
 #include "ash/session/session_observer.h"
 #include "ash/system/tray/tray_background_view.h"
 #include "ash/tray_action/tray_action_observer.h"
 #include "base/macros.h"
 #include "base/scoped_observer.h"
 
 namespace gfx {
 class ImageSkia;
 }
 
+namespace views {
+class ImageView;
+}
+
 namespace ash {
 
 class SessionController;
 class TrayAction;
 
 // Tray item for surfacing entry point on lock screen UI for handling actions
 // available through mojom::TrayAction interface. The item is
 // shown as a system tray status area icon. Its visibility is determined by:
 // * session state - the item is shown only when the session is locked
 // * tray action state - the item is shown only when the action is available
@@ skipping 20 matching lines @@
 
   // SessionObserver:
   void OnLockStateChanged(bool locked) override;
 
   // TrayActionObserver:
   void OnLockScreenNoteStateChanged(mojom::TrayActionState state) override;
 
   const gfx::ImageSkia& GetImageForTesting() const;
 
  private:
-  class NewNoteActionView;
-
   // Whether the tray item should be visible in its current state.
   bool IsStateVisible() const;
 
   // Updates the icon displayed in the tray for the note creation action.
   void UpdateNewNoteIcon();
 
   // The view for the tray item - it's a wrapper around a ImageView.
-  NewNoteActionView* new_note_action_view_;
+  views::ImageView* new_note_action_view_;
 
   mojom::TrayActionState new_note_state_ =
       mojom::TrayActionState::kNotAvailable;
 
   ScopedObserver<SessionController, SessionObserver> session_observer_;
   ScopedObserver<TrayAction, TrayActionObserver> tray_action_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(LockScreenActionTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_LOCK_SCREEN_ACTION_LOCK_SCREEN_ACTION_TRAY_H_