1 files changed, 86 insertions, 0 deletions
diff --git a/dom/base/StructuredCloneBlob.h b/dom/base/StructuredCloneBlob.h
new file mode 100644
index 0000000000..8fc2c00cd9
--- /dev/null
+++ b/dom/base/StructuredCloneBlob.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_StructuredCloneBlob_h
+#define mozilla_dom_StructuredCloneBlob_h
+
+#include "js/TypeDecls.h"
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/StructuredCloneHolder.h"
+#include "nsIMemoryReporter.h"
+#include "nsISupports.h"
+
+struct JSStructuredCloneReader;
+struct JSStructuredCloneWriter;
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+class GlobalObject;
+
+class StructuredCloneBlob final : public nsIMemoryReporter {
+  MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf)
+
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMEMORYREPORTER
+
+  static JSObject* ReadStructuredClone(JSContext* aCx,
+                                       JSStructuredCloneReader* aReader,
+                                       StructuredCloneHolder* aHolder);
+  bool WriteStructuredClone(JSContext* aCx, JSStructuredCloneWriter* aWriter,
+                            StructuredCloneHolder* aHolder);
+
+  static already_AddRefed<StructuredCloneBlob> Constructor(
+      GlobalObject& aGlobal, JS::HandleValue aValue,
+      JS::HandleObject aTargetGlobal, ErrorResult& aRv);
+
+  void Deserialize(JSContext* aCx, JS::HandleObject aTargetScope,
+                   bool aKeepData, JS::MutableHandleValue aResult,
+                   ErrorResult& aRv);
+
+  nsISupports* GetParentObject() const { return nullptr; }
+  JSObject* GetWrapper() const { return nullptr; }
+
+  bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
+                  JS::MutableHandleObject aResult);
+
+ protected:
+  virtual ~StructuredCloneBlob();
+
+ private:
+  explicit StructuredCloneBlob();
+
+  class Holder : public StructuredCloneHolder {
+   public:
+    using StructuredCloneHolder::StructuredCloneHolder;
+
+    bool ReadStructuredCloneInternal(JSContext* aCx,
+                                     JSStructuredCloneReader* aReader,
+                                     StructuredCloneHolder* aHolder);
+
+    bool WriteStructuredClone(JSContext* aCx, JSStructuredCloneWriter* aWriter,
+                              StructuredCloneHolder* aHolder);
+  };
+
+  Maybe<Holder> mHolder;
+
+  static already_AddRefed<StructuredCloneBlob> Create() {
+    RefPtr<StructuredCloneBlob> holder = new StructuredCloneBlob();
+    RegisterWeakMemoryReporter(holder);
+    return holder.forget();
+  }
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_StructuredCloneBlob_h