VR: Factor transient timing out of UiSceneManager.

chrome/browser/android/vr_shell/ui_scene_manager.h

Index: chrome/browser/android/vr_shell/ui_scene_manager.h
diff --git a/chrome/browser/android/vr_shell/ui_scene_manager.h b/chrome/browser/android/vr_shell/ui_scene_manager.h
index a330af6147725a9d2854f43a34214b8b5ee52dad..3f1fd0808dc8242655e3bb0c08d4d78d3245574e 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.h
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.h
@@ -17,6 +17,7 @@
 namespace vr_shell {
 
 class LoadingIndicator;
+class PresentationToast;
 class TransientUrlBar;
 class UiBrowserInterface;
 class UiElement;
@@ -59,11 +60,6 @@ class UiSceneManager {
   void OnExitPromptPrimaryButtonClickedForTesting();
 
  private:
-  enum ToastState {
-    UNCHANGED = 0,
-    SET_FOR_WEB_VR,
-    SET_FOR_FULLSCREEN,
-  };
   void CreateScreenDimmer();
   void CreateSecurityWarnings();
   void CreateSystemIndicators();
@@ -79,7 +75,6 @@ class UiSceneManager {
   void ConfigureSecurityWarnings();
   void ConfigureTransientUrlBar();
   void ConfigureIndicators();
-  void ConfigurePresentationToast();
   void UpdateBackgroundColor();
   void CloseExitPrompt();
   void OnSecurityWarningTimer();
@@ -102,7 +97,7 @@ class UiSceneManager {
   // UI element pointers (not owned by the scene manager).
   UiElement* permanent_security_warning_ = nullptr;
   UiElement* transient_security_warning_ = nullptr;
-  UiElement* presentation_toast_ = nullptr;
+  PresentationToast* presentation_toast_ = nullptr;
   UiElement* exit_prompt_ = nullptr;
   UiElement* exit_prompt_backplane_ = nullptr;
   UiElement* exit_warning_ = nullptr;
@@ -132,7 +127,6 @@ class UiSceneManager {
   bool video_capturing_ = false;
   bool screen_capturing_ = false;
   bool location_access_ = false;
-  ToastState toast_state_ = UNCHANGED;
 
   int next_available_id_ = 1;
 
@@ -142,7 +136,6 @@ class UiSceneManager {
 
   base::OneShotTimer security_warning_timer_;
   base::OneShotTimer transient_url_bar_timer_;
-  base::OneShotTimer presentation_toast_timer_;
 
   base::WeakPtrFactory<UiSceneManager> weak_ptr_factory_;