CompositorWorkerProxyClientImpl to CompositorProxy cross thread reference is using WeakMember

third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp

Index: third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp b/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp
index c44def54389b1f4857c1477df9a7f0f99a33a54b..fef09b450871e65bfd57c1d045be707307f45eb2 100644
--- a/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp
+++ b/third_party/WebKit/Source/web/AnimationWorkletProxyClientImpl.cpp
@@ -17,7 +17,6 @@ AnimationWorkletProxyClientImpl::AnimationWorkletProxyClientImpl(
 }
 
 DEFINE_TRACE(AnimationWorkletProxyClientImpl) {
-  visitor->trace(m_proxies);
   AnimationWorkletProxyClient::trace(visitor);
   CompositorAnimator::trace(visitor);
 }
@@ -32,16 +31,4 @@ bool AnimationWorkletProxyClientImpl::mutate(
   return true;
 }
 
-void AnimationWorkletProxyClientImpl::registerCompositorProxy(
-    CompositorProxy* proxy) {
-  DCHECK(!isMainThread());
-  m_proxies.insert(proxy);
-}
-
-void AnimationWorkletProxyClientImpl::unregisterCompositorProxy(
-    CompositorProxy* proxy) {
-  DCHECK(!isMainThread());
-  m_proxies.erase(proxy);
-}
-
 }  // namespace blink