fix: crash problem with message_port close event

patches/chromium/.patches

@@ -47,7 +47,6 @@ feat_add_support_for_overriding_the_base_spellchecker_download_url.patch
 feat_enable_offscreen_rendering_with_viz_compositor.patch
 gpu_notify_when_dxdiag_request_fails.patch
 feat_allow_embedders_to_add_observers_on_created_hunspell.patch
-feat_add_onclose_to_messageport.patch
 allow_in-process_windows_to_have_different_web_prefs.patch
 refactor_expose_cursor_changes_to_the_webcontentsobserver.patch
 crash_allow_setting_more_options.patch

spec/api-ipc-spec.ts

@@ -345,6 +345,59 @@ describe('ipc module', () => {
           }})()`);
         });
       });
+
+      describe('when context destroyed', () => {
+        it('does not crash', async () => {
+          let count = 0;
+          const server = http.createServer((req, res) => {
+            switch (req.url) {
+              case '/index.html':
+                res.setHeader('content-type', 'text/html');
+                res.statusCode = 200;
+                count = count + 1;
+                res.end(`
+                  <title>Hello${count}</title>
+                  <script>
+                  var sharedWorker = new SharedWorker('worker.js');
+
+                  sharedWorker.port.addEventListener('close', function(event) {
+                     console.log('close event', event.data);
+                  });
+                  </script>`);
+
+                break;
+              case '/worker.js':
+                res.setHeader('content-type', 'application/javascript; charset=UTF-8');
+                res.statusCode = 200;
+                res.end(`
+                  self.addEventListener('connect', function(event) {
+                    var port = event.ports[0];
+
+                    port.addEventListener('message', function(event) {
+                      console.log('Message from main:', event.data);
+                      port.postMessage('Hello from SharedWorker!');
+                    });
+
+                  });`);
+                break;
+              default:
+                throw new Error(`unsupported endpoint: ${req.url}`);
+            }
+          });
+          const { port } = await listen(server);
+          defer(() => {
+            server.close();
+          });
+          const w = new BrowserWindow({ show: false });
+          await w.loadURL(`http://localhost:${port}/index.html`);
+          expect(w.webContents.getTitle()).to.equal('Hello1');
+          // Before the fix, it would crash if reloaded, but now it doesn't
+          await w.loadURL(`http://localhost:${port}/index.html`);
+          expect(w.webContents.getTitle()).to.equal('Hello2');
+          // const crashEvent = emittedOnce(w.webContents, 'render-process-gone');
+          // await crashEvent;
+        });
+      });
     });
 
     describe('MessageChannelMain', () => {