1 files changed, 28 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/modules/exported/web_idb_key.cc b/chromium/third_party/blink/renderer/modules/exported/web_idb_key.cc
index 600bfce5080..2d0dbfd23e6 100644
--- a/chromium/third_party/blink/renderer/modules/exported/web_idb_key.cc
+++ b/chromium/third_party/blink/renderer/modules/exported/web_idb_key.cc
@@ -68,6 +68,23 @@ double WebIDBKeyView::Number() const {
   return private_->Number();
 }
 
+size_t WebIDBKeyView::SizeEstimate() const {
+  // TODO(cmp): Ensure |private_| can never be null.
+  //
+  // SizeEstimate() can be called when |private_| is null.  That happens if and
+  // only if the |WebIDBKey| instance is created using WebIDBKey::CreateNull().
+  //
+  // Eventually, WebIDBKey::CreateNull() will change so that case will lead to
+  // a non-null |private_|.  At that time, this null check can change to a
+  // DCHECK that |private_| is not null and the special null case handling can
+  // be removed.
+  if (this->IsNull()) {
+    return IDBKey::kIDBKeyOverheadSize;
+  }
+
+  return private_->SizeEstimate();
+}
+
 WebIDBKey WebIDBKey::CreateArray(WebVector<WebIDBKey> array) {
   IDBKey::KeyArray keys;
   keys.ReserveCapacity(SafeCast<wtf_size_t>(array.size()));
@@ -105,6 +122,10 @@ WebIDBKey& WebIDBKey::operator=(WebIDBKey&&) noexcept = default;
 
 WebIDBKey::~WebIDBKey() noexcept = default;
 
+std::unique_ptr<IDBKey> WebIDBKey::ReleaseIdbKey() noexcept {
+  return std::move(private_);
+}
+
 WebIDBKey::WebIDBKey(std::unique_ptr<IDBKey> idb_key) noexcept
     : private_(std::move(idb_key)) {}
 WebIDBKey& WebIDBKey::operator=(std::unique_ptr<IDBKey> idb_key) noexcept {
@@ -112,4 +133,11 @@ WebIDBKey& WebIDBKey::operator=(std::unique_ptr<IDBKey> idb_key) noexcept {
   return *this;
 }
 
+WebIDBKey::WebIDBKey(const WebIDBKey& rkey)
+    : private_(IDBKey::Clone(rkey.private_)) {}
+WebIDBKey& WebIDBKey::operator=(const WebIDBKey& rkey) {
+  private_ = IDBKey::Clone(rkey.private_);
+  return *this;
+}
+
 }  // namespace blink