1 files changed, 11 insertions, 1 deletions
diff --git a/dom/indexedDB/Key.h b/dom/indexedDB/Key.h
index d19bc94e53..25ddd3e0b1 100644
--- a/dom/indexedDB/Key.h
+++ b/dom/indexedDB/Key.h
@@ -25,6 +25,7 @@ class Key {
   friend struct IPC::ParamTraits<Key>;
 
   nsCString mBuffer;
+  CopyableTArray<uint32_t> mAutoIncrementKeyOffsets;
 
  public:
   enum {
@@ -86,7 +87,10 @@ class Key {
     return Compare(mBuffer, aOther.mBuffer) >= 0;
   }
 
-  void Unset() { mBuffer.SetIsVoid(true); }
+  void Unset() {
+    mBuffer.SetIsVoid(true);
+    mAutoIncrementKeyOffsets.Clear();
+  }
 
   bool IsUnset() const { return mBuffer.IsVoid(); }
 
@@ -174,6 +178,10 @@ class Key {
     return 0;
   }
 
+  void ReserveAutoIncrementKey(bool aFirstOfArray);
+
+  void MaybeUpdateAutoIncrementKey(int64_t aKey);
+
  private:
   class MOZ_STACK_CLASS ArrayValueEncoder;
 
@@ -273,6 +281,8 @@ class Key {
 
   template <typename T>
   nsresult SetFromSource(T* aSource, uint32_t aIndex);
+
+  void WriteDoubleToUint64(char* aBuffer, double aValue);
 };
 
 }  // namespace mozilla::dom::indexedDB