Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/dom/ipc/PermissionMessageUtils.h b/dom/ipc/PermissionMessageUtils.h
new file mode 100644
index 0000000000..e73ce7922e
--- /dev/null
+++ b/dom/ipc/PermissionMessageUtils.h
@@ -0,0 +1,76 @@
+/* -*- 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_permission_message_utils_h__
+#define mozilla_dom_permission_message_utils_h__
+
+#include "mozilla/ipc/IPDLParamTraits.h"
+#include "ipc/IPCMessageUtils.h"
+#include "nsCOMPtr.h"
+#include "nsIPrincipal.h"
+
+namespace IPC {
+
+/**
+ * Legacy IPC::Principal type. Use nsIPrincipal directly in new IPDL code.
+ */
+class Principal {
+  friend struct mozilla::ipc::IPDLParamTraits<Principal>;
+
+ public:
+  Principal() = default;
+
+  explicit Principal(nsIPrincipal* aPrincipal) : mPrincipal(aPrincipal) {}
+
+  operator nsIPrincipal*() const { return mPrincipal.get(); }
+
+  Principal& operator=(const Principal& aOther) = delete;
+
+ private:
+  RefPtr<nsIPrincipal> mPrincipal;
+};
+
+}  // namespace IPC
+
+namespace mozilla {
+namespace ipc {
+
+template <>
+struct IPDLParamTraits<nsIPrincipal*> {
+  static void Write(IPC::Message* aMsg, IProtocol* aActor,
+                    nsIPrincipal* aParam);
+  static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
+                   IProtocol* aActor, RefPtr<nsIPrincipal>* aResult);
+
+  // Overload to support deserializing nsCOMPtr<nsIPrincipal> directly.
+  static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
+                   IProtocol* aActor, nsCOMPtr<nsIPrincipal>* aResult) {
+    RefPtr<nsIPrincipal> result;
+    if (!Read(aMsg, aIter, aActor, &result)) {
+      return false;
+    }
+    *aResult = std::move(result);
+    return true;
+  }
+};
+
+template <>
+struct IPDLParamTraits<IPC::Principal> {
+  typedef IPC::Principal paramType;
+  static void Write(IPC::Message* aMsg, IProtocol* aActor,
+                    const paramType& aParam) {
+    WriteIPDLParam(aMsg, aActor, aParam.mPrincipal);
+  }
+  static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
+                   IProtocol* aActor, paramType* aResult) {
+    return ReadIPDLParam(aMsg, aIter, aActor, &aResult->mPrincipal);
+  }
+};
+
+}  // namespace ipc
+}  // namespace mozilla
+
+#endif  // mozilla_dom_permission_message_utils_h__