1 files changed, 6 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/core/mojo/mojo_watcher.h b/chromium/third_party/blink/renderer/core/mojo/mojo_watcher.h
index c1ce045f924..a83e72da10e 100644
--- a/chromium/third_party/blink/renderer/core/mojo/mojo_watcher.h
+++ b/chromium/third_party/blink/renderer/core/mojo/mojo_watcher.h
@@ -10,6 +10,11 @@
 #include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
 #include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
 #include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
+#include "third_party/blink/renderer/platform/heap/self_keep_alive.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
 
 namespace blink {
 
@@ -50,6 +55,7 @@ class MojoWatcher final : public ScriptWrappable,
   static void OnHandleReady(const MojoTrapEvent*);
   void RunReadyCallback(MojoResult);
 
+  SelfKeepAlive<MojoWatcher> keep_alive_{PERSISTENT_FROM_HERE};
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   Member<V8MojoWatchCallback> callback_;
   mojo::ScopedTrapHandle trap_handle_;