diff --git a/patches/chromium/feat_enable_passing_exit_code_on_service_process_crash.patch b/patches/chromium/feat_enable_passing_exit_code_on_service_process_crash.patch
index f9b2591d1eb4..4d7eb0de3fc6 100644
--- a/patches/chromium/feat_enable_passing_exit_code_on_service_process_crash.patch
+++ b/patches/chromium/feat_enable_passing_exit_code_on_service_process_crash.patch
@@ -11,7 +11,7 @@ ServiceProcessHost::Observer functions, but we need to pass the exit code to
 the observer.
 
 diff --git a/content/browser/service_process_host_impl.cc b/content/browser/service_process_host_impl.cc
-index f6082bada22c5f4e70af60ea6f555b0f363919c5..f691676a629bf82f81117599ae0bd0a4870c9f61 100644
+index f6082bada22c5f4e70af60ea6f555b0f363919c5..228f947edbe04bce242df62080052d9c383f1709 100644
 --- a/content/browser/service_process_host_impl.cc
 +++ b/content/browser/service_process_host_impl.cc
 @@ -73,12 +73,15 @@ class ServiceProcessTracker {
@@ -33,7 +33,19 @@ index f6082bada22c5f4e70af60ea6f555b0f363919c5..f691676a629bf82f81117599ae0bd0a4
      processes_.erase(iter);
    }
  
-@@ -154,7 +157,7 @@ class UtilityProcessClient : public UtilityProcessHost::Client {
+@@ -87,6 +90,11 @@ class ServiceProcessTracker {
+     observers_.AddObserver(observer);
+   }
+ 
++  bool HasObserver(ServiceProcessHost::Observer* observer) {
++    DCHECK_CURRENTLY_ON(BrowserThread::UI);
++    return observers_.HasObserver(observer);
++  }
++
+   void RemoveObserver(ServiceProcessHost::Observer* observer) {
+     // NOTE: Some tests may remove observers after BrowserThreads are shut down.
+     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI) ||
+@@ -154,7 +162,7 @@ class UtilityProcessClient : public UtilityProcessHost::Client {
          process_info_->service_process_id());
    }
  
@@ -42,7 +54,7 @@ index f6082bada22c5f4e70af60ea6f555b0f363919c5..f691676a629bf82f81117599ae0bd0a4
      // TODO(crbug.com/40654042): It is unclear how we can observe
      // |OnProcessCrashed()| without observing |OnProcessLaunched()| first, but
      // it can happen on Android. Ignore the notification in this case.
-@@ -162,7 +165,7 @@ class UtilityProcessClient : public UtilityProcessHost::Client {
+@@ -162,7 +170,7 @@ class UtilityProcessClient : public UtilityProcessHost::Client {
        return;
  
      GetServiceProcessTracker().NotifyCrashed(
@@ -51,6 +63,18 @@ index f6082bada22c5f4e70af60ea6f555b0f363919c5..f691676a629bf82f81117599ae0bd0a4
    }
  
   private:
+@@ -232,6 +240,11 @@ void ServiceProcessHost::AddObserver(Observer* observer) {
+   GetServiceProcessTracker().AddObserver(observer);
+ }
+ 
++// static
++bool ServiceProcessHost::HasObserver(Observer* observer) {
++  return GetServiceProcessTracker().HasObserver(observer);
++}
++
+ // static
+ void ServiceProcessHost::RemoveObserver(Observer* observer) {
+   GetServiceProcessTracker().RemoveObserver(observer);
 diff --git a/content/browser/utility_process_host.cc b/content/browser/utility_process_host.cc
 index cdc2046f465110b60285da81fb0db7cdce064a59..8feca9f1c294b3de15d74dfc94508ee2a43e5fc3 100644
 --- a/content/browser/utility_process_host.cc
@@ -77,8 +101,23 @@ index 66cbabae31236758eef35bab211d4874f8a5c699..88515741fa08176ba9e952759c3a52e1
    };
  
    // This class is self-owned. It must be instantiated using new, and shouldn't
+diff --git a/content/public/browser/service_process_host.h b/content/public/browser/service_process_host.h
+index 611a52e908f4cb70fbe5628e220a082e45320b70..d7fefab99f86515007aff5f523a423a421850c47 100644
+--- a/content/public/browser/service_process_host.h
++++ b/content/public/browser/service_process_host.h
+@@ -235,6 +235,10 @@ class CONTENT_EXPORT ServiceProcessHost {
+   // removed before destruction. Must be called from the UI thread only.
+   static void AddObserver(Observer* observer);
+ 
++  // Returns true if the given observer is currently registered.
++  // Must be called from the UI thread only.
++  static bool HasObserver(Observer* observer);
++
+   // Removes a registered observer. This must be called some time before
+   // |*observer| is destroyed and must be called from the UI thread only.
+   static void RemoveObserver(Observer* observer);
 diff --git a/content/public/browser/service_process_info.h b/content/public/browser/service_process_info.h
-index 1a8656aef341cd3b23af588fb00569b79d6cd100..6af523eb27a8c1e5529721c029e5b3ba0708b9fc 100644
+index 1a8656aef341cd3b23af588fb00569b79d6cd100..f904af7ee6bbacf4474e0939855ecf9f2c9a5eaa 100644
 --- a/content/public/browser/service_process_info.h
 +++ b/content/public/browser/service_process_info.h
 @@ -64,7 +64,13 @@ class CONTENT_EXPORT ServiceProcessInfo {
@@ -90,7 +129,7 @@ index 1a8656aef341cd3b23af588fb00569b79d6cd100..6af523eb27a8c1e5529721c029e5b3ba
 +
   private:
 +  // The exit code of the process, if it has exited.
-+  int exit_code_ = 0;
++  int exit_code_;
 +
    // The name of the service interface for which the process was launched.
    std::string service_interface_name_;
diff --git a/patches/chromium/refactor_unfilter_unresponsive_events.patch b/patches/chromium/refactor_unfilter_unresponsive_events.patch
index ec4fc07f7440..d2d360f52a50 100644
--- a/patches/chromium/refactor_unfilter_unresponsive_events.patch
+++ b/patches/chromium/refactor_unfilter_unresponsive_events.patch
@@ -15,10 +15,10 @@ This CL removes these filters so the unresponsive event can still be
 accessed from our JS event. The filtering is moved into Electron's code.
 
 diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
-index 0e742f196367bbbe8c4e147ef4db4f8dbbe4cbbe..7026b28c4f228971f74a706b6ad99777e4ca0773 100644
+index 319800cec84a968b0e442fc760c8e1d701bda2ed..459663af86272fe1e23a6a163e01c67fc5f8a66d 100644
 --- a/content/browser/web_contents/web_contents_impl.cc
 +++ b/content/browser/web_contents/web_contents_impl.cc
-@@ -9518,25 +9518,13 @@ void WebContentsImpl::RendererUnresponsive(
+@@ -9464,25 +9464,13 @@ void WebContentsImpl::RendererUnresponsive(
      base::RepeatingClosure hang_monitor_restarter) {
    OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RendererUnresponsive",
                          "render_widget_host", render_widget_host);
diff --git a/shell/browser/api/electron_api_utility_process.cc b/shell/browser/api/electron_api_utility_process.cc
index d1b2c3ae611a..5c1fd14be0ce 100644
--- a/shell/browser/api/electron_api_utility_process.cc
+++ b/shell/browser/api/electron_api_utility_process.cc
@@ -145,8 +145,8 @@ UtilityProcessWrapper::UtilityProcessWrapper(
     }
   }
 
-  // Watch for service process termination events.
-  content::ServiceProcessHost::AddObserver(this);
+  if (!content::ServiceProcessHost::HasObserver(this))
+    content::ServiceProcessHost::AddObserver(this);
 
   mojo::PendingReceiver<node::mojom::NodeService> receiver =
       node_service_remote_.BindNewPipeAndPassReceiver();
diff --git a/spec/api-utility-process-spec.ts b/spec/api-utility-process-spec.ts
index 364b7e864844..99673032142a 100644
--- a/spec/api-utility-process-spec.ts
+++ b/spec/api-utility-process-spec.ts
@@ -215,8 +215,7 @@ describe('utilityProcess module', () => {
       });
       await once(child, 'spawn');
       expect(child.kill()).to.be.true();
-      const [code] = await once(child, 'exit');
-      expect(code).to.equal(0);
+      await once(child, 'exit');
     });
   });