chore: use ScopedPumpMessagesInPrivateModes in tray (#18977)

* chore: use ScopedPumpMessagesInPrivateModes in tray

* revert refcounting of AtomMenuModel

* Prefer WeakPtr for posting tasks to handle unexpected destruction

shell/browser/api/atom_api_menu.h

@@ -63,7 +63,7 @@ class Menu : public mate::TrackableObject<Menu>,
                        const base::Closure& callback) = 0;
   virtual void ClosePopupAt(int32_t window_id) = 0;
 
-  scoped_refptr<AtomMenuModel> model_;
+  std::unique_ptr<AtomMenuModel> model_;
   Menu* parent_ = nullptr;
 
   // Observable:

shell/browser/ui/atom_menu_model.h

@@ -13,8 +13,7 @@
 
 namespace electron {
 
-class AtomMenuModel : public ui::SimpleMenuModel,
+class AtomMenuModel : public ui::SimpleMenuModel {
-                      public base::RefCounted<AtomMenuModel> {
  public:
   class Delegate : public ui::SimpleMenuModel::Delegate {
    public:
@@ -49,6 +48,7 @@ class AtomMenuModel : public ui::SimpleMenuModel,
   };
 
   explicit AtomMenuModel(Delegate* delegate);
+  ~AtomMenuModel() override;
 
   void AddObserver(Observer* obs) { observers_.AddObserver(obs); }
   void RemoveObserver(Observer* obs) { observers_.RemoveObserver(obs); }
@@ -69,9 +69,6 @@ class AtomMenuModel : public ui::SimpleMenuModel,
   AtomMenuModel* GetSubmenuModelAt(int index);
 
  private:
-  friend class base::RefCounted<AtomMenuModel>;
-  ~AtomMenuModel() override;
-
   Delegate* delegate_;  // weak ref.
 
   std::map<int, base::string16> roles_;  // command id -> role

shell/browser/ui/tray_icon_cocoa.h

@@ -30,7 +30,7 @@ class TrayIconCocoa : public TrayIcon, public AtomMenuModel::Observer {
   void SetHighlightMode(TrayIcon::HighlightMode mode) override;
   void SetIgnoreDoubleClickEvents(bool ignore) override;
   bool GetIgnoreDoubleClickEvents() override;
-  void PopUpOnUI(scoped_refptr<AtomMenuModel> menu_model);
+  void PopUpOnUI(AtomMenuModel* menu_model);
   void PopUpContextMenu(const gfx::Point& pos,
                         AtomMenuModel* menu_model) override;
   void SetContextMenu(AtomMenuModel* menu_model) override;
@@ -50,6 +50,8 @@ class TrayIconCocoa : public TrayIcon, public AtomMenuModel::Observer {
   // Used for unregistering observer.
   AtomMenuModel* menu_model_ = nullptr;  // weak ref.
 
+  base::WeakPtrFactory<TrayIconCocoa> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(TrayIconCocoa);
 };
 

shell/browser/ui/tray_icon_cocoa.mm

@@ -337,7 +337,12 @@ const CGFloat kVerticalTitleMargin = 2;
 }
 
 - (void)popUpContextMenu:(electron::AtomMenuModel*)menu_model {
+  // Make sure events can be pumped while the menu is up.
   base::MessageLoopCurrent::ScopedNestableTaskAllower allow;
+
+  // Ensure the UI can update while the menu is fading out.
+  base::ScopedPumpMessagesInPrivateModes pump_private;
+
   // Show a custom menu.
   if (menu_model) {
     base::scoped_nsobject<AtomMenuController> menuController(
@@ -346,7 +351,6 @@ const CGFloat kVerticalTitleMargin = 2;
     forceHighlight_ = YES;  // Should highlight when showing menu.
     [self setNeedsDisplay:YES];
 
-    base::mac::ScopedSendingEvent sendingEventScoper;
     [statusItem_ popUpStatusItemMenu:[menuController menu]];
     forceHighlight_ = NO;
     [self setNeedsDisplay:YES];
@@ -357,7 +361,6 @@ const CGFloat kVerticalTitleMargin = 2;
     // Redraw the tray icon to show highlight if it is enabled.
     [self setNeedsDisplay:YES];
 
-    base::mac::ScopedSendingEvent sendingEventScoper;
     [statusItem_ popUpStatusItemMenu:[menuController_ menu]];
     // The popUpStatusItemMenu returns only after the showing menu is closed.
     // When it returns, we need to redraw the tray icon to not show highlight.
@@ -456,7 +459,7 @@ const CGFloat kVerticalTitleMargin = 2;
 
 namespace electron {
 
-TrayIconCocoa::TrayIconCocoa() {
+TrayIconCocoa::TrayIconCocoa() : weak_factory_(this) {
   status_item_view_.reset([[StatusItemView alloc] initWithIcon:this]);
 }
 
@@ -498,17 +501,16 @@ bool TrayIconCocoa::GetIgnoreDoubleClickEvents() {
   return [status_item_view_ getIgnoreDoubleClickEvents];
 }
 
-void TrayIconCocoa::PopUpOnUI(scoped_refptr<AtomMenuModel> menu_model) {
+void TrayIconCocoa::PopUpOnUI(AtomMenuModel* menu_model) {
-  if (auto* model = menu_model.get())
+  [status_item_view_ popUpContextMenu:menu_model];
-    [status_item_view_ popUpContextMenu:model];
 }
 
 void TrayIconCocoa::PopUpContextMenu(const gfx::Point& pos,
                                      AtomMenuModel* menu_model) {
   base::PostTaskWithTraits(
       FROM_HERE, {content::BrowserThread::UI},
-      base::BindOnce(&TrayIconCocoa::PopUpOnUI, base::Unretained(this),
+      base::BindOnce(&TrayIconCocoa::PopUpOnUI, weak_factory_.GetWeakPtr(),
-                     base::WrapRefCounted(menu_model)));
+                     base::Unretained(menu_model)));
 }
 
 void TrayIconCocoa::SetContextMenu(AtomMenuModel* menu_model) {