NOT FOR REVIEW - convert to cc animation

chrome/browser/android/vr_shell/ui_elements/exit_prompt_backplane.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 CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_EXIT_PROMPT_BACKPLANE_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_EXIT_PROMPT_BACKPLANE_H_
 
 #include "base/callback.h"
 #include "chrome/browser/android/vr_shell/ui_elements/ui_element.h"
 
 namespace vr_shell {
 
 // An invisible but hittable plane behind the exit prompt, to keep the reticle
 // roughly planar with the prompt when its near the prompt.
 class ExitPromptBackplane : public UiElement {
  public:
-  explicit ExitPromptBackplane(const base::Callback<void()>& click_callback);
+  explicit ExitPromptBackplane(int id,
+                               const base::Callback<void()>& click_callback);
   ~ExitPromptBackplane() override;
 
   void OnButtonUp(const gfx::PointF& position) override;
 
  private:
   base::Callback<void()> click_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(ExitPromptBackplane);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_EXIT_PROMPT_BACKPLANE_H_