fix: transparent window max/unmax event firing (#32643)

shell/browser/native_window_views.cc

@@ -594,6 +594,7 @@ void NativeWindowViews::Unmaximize() {
 #if defined(OS_WIN)
     if (transparent()) {
       SetBounds(restore_bounds_, false);
+      NotifyWindowUnmaximize();
       return;
     }
 #endif

shell/browser/native_window_views_win.cc

@@ -187,6 +187,7 @@ void NativeWindowViews::Maximize() {
     auto display = display::Screen::GetScreen()->GetDisplayNearestWindow(
         GetNativeWindow());
     SetBounds(display.work_area(), false);
+    NotifyWindowMaximize();
   }
 }