CompositorWorkerProxyClientImpl to CompositorProxy cross thread reference is using WeakMember

third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h

Index: third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h
diff --git a/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h b/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h
index 22ff647cc97b17d75a3c7168e88ecb5bdac06179..1fc9c400b8d15113af1aa007a7230bce66c0ee0d 100644
--- a/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h
+++ b/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.h
@@ -8,6 +8,7 @@
 #include "core/dom/AnimationWorkletProxyClient.h"
 #include "platform/heap/Handle.h"
 #include "web/CompositorAnimator.h"
+#include "web/CompositorProxyClientImpl.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
@@ -21,7 +22,8 @@ class CompositorMutatorImpl;
 // This is constructed on the main thread but it is used in the worklet backing
 // thread i.e., compositor thread.
 class AnimationWorkletProxyClientImpl final
-    : public AnimationWorkletProxyClient,
+    : public GarbageCollectedFinalized<AnimationWorkletProxyClientImpl>,
+      public AnimationWorkletProxyClient,
       public CompositorAnimator {
   WTF_MAKE_NONCOPYABLE(AnimationWorkletProxyClientImpl);
   USING_GARBAGE_COLLECTED_MIXIN(AnimationWorkletProxyClientImpl);
@@ -35,13 +37,10 @@ class AnimationWorkletProxyClientImpl final
   bool mutate(double monotonicTimeNow,
               CompositorMutableStateProvider*) override;
 
-  // CompositorProxyClient:
-  void registerCompositorProxy(CompositorProxy*) override;
-  void unregisterCompositorProxy(CompositorProxy*) override;
-
  private:
   CrossThreadPersistent<CompositorMutatorImpl> m_mutator;
-  HeapHashSet<WeakMember<CompositorProxy>> m_proxies;
+
+  CrossThreadPersistent<CompositorProxyClientImpl> m_compositorProxyClient;
 };
 
 }  // namespace blink