Weak HTMLMediaElement::m_audioSourceNode reference must be cleared.

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp b/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
index 0957206f03f80460381ac266a4bf48e5aee94d3a..8beea08cbcdda8e7b55f8d57890f68315abf9bed 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
@@ -3751,8 +3751,10 @@ void HTMLMediaElement::rejectPlayPromises(ExceptionCode code, const String& mess
 
 void HTMLMediaElement::clearWeakMembers(Visitor* visitor)
 {
-    if (!ThreadHeap::isHeapObjectAlive(m_audioSourceNode))
+    if (!ThreadHeap::isHeapObjectAlive(m_audioSourceNode)) {
         getAudioSourceProvider().setClient(nullptr);
+        m_audioSourceNode = nullptr;
+    }
 }
 
 void HTMLMediaElement::AudioSourceProviderImpl::wrap(WebAudioSourceProvider* provider)