Ensure the destructor is called since it destroys the EGLSurface before creating a new onscreen surface. (#20916)

Author: Guokai-Cheng

shell/platform/android/android_surface_gl.cc

@@ -92,6 +92,9 @@ bool AndroidSurfaceGL::SetNativeWindow(
   FML_DCHECK(IsValid());
   FML_DCHECK(window);
   native_window_ = window;
+  // Ensure the destructor is called since it destroys the `EGLSurface` before
+  // creating a new onscreen surface.
+  onscreen_surface_ = nullptr;
   // Create the onscreen surface.
   onscreen_surface_ = android_context_->CreateOnscreenSurface(window);
   if (!onscreen_surface_->IsValid()) {