Uses node address for removed node id

This case will be covered in Java integration test.

Bug: 954387
Change-Id: I1b34a031d47e97fbcabd24f4363ce6ca9fe97579
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574946Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652472}

third_party/blink/renderer/core/content_capture/task_session.cc

@@ -106,7 +106,7 @@ void TaskSession::GroupCapturedContentByDocument(
 void TaskSession::OnNodeDetached(const cc::NodeHolder& node_holder) {
   if (const Node* node = GetNodeIf(true /* sent */, node_holder)) {
     EnsureDocumentSession(node->GetDocument())
-        .AddDetachedNode(reinterpret_cast<int64_t>(&node));
+        .AddDetachedNode(reinterpret_cast<int64_t>(node));
     has_unsent_data_ = true;
   }
 }