1 files changed, 42 insertions, 0 deletions
diff --git a/dom/base/ProcessMessageManager.cpp b/dom/base/ProcessMessageManager.cpp
new file mode 100644
index 0000000000..393a1954d9
--- /dev/null
+++ b/dom/base/ProcessMessageManager.cpp
@@ -0,0 +1,42 @@
+/* -*- 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/. */
+
+#include "mozilla/dom/ParentProcessMessageManager.h"
+#include "mozilla/dom/ProcessMessageManager.h"
+#include "mozilla/dom/MessageManagerBinding.h"
+#include "nsContentUtils.h"
+
+namespace mozilla::dom {
+
+ProcessMessageManager::ProcessMessageManager(
+    ipc::MessageManagerCallback* aCallback,
+    ParentProcessMessageManager* aParentManager, MessageManagerFlags aFlags)
+    : MessageSender(aCallback, aParentManager,
+                    aFlags | MessageManagerFlags::MM_CHROME |
+                        MessageManagerFlags::MM_PROCESSMANAGER),
+      mPid(-1),
+      // aCallback is only specified if this is the in-process manager.
+      mInProcess(!!aCallback) {
+  MOZ_ASSERT(!(aFlags & ~(MessageManagerFlags::MM_GLOBAL |
+                          MessageManagerFlags::MM_OWNSCALLBACK)));
+
+  // This is a bit hackish. We attach to the parent manager, but only if we have
+  // a callback (which is only for the in-process message manager). For other
+  // cases we wait until the child process is running (see
+  // MessageSender::InitWithCallback).
+  if (aParentManager && mCallback) {
+    aParentManager->AddChildManager(this);
+  }
+}
+
+JSObject* ProcessMessageManager::WrapObject(JSContext* aCx,
+                                            JS::Handle<JSObject*> aGivenProto) {
+  MOZ_ASSERT(nsContentUtils::IsSystemCaller(aCx));
+
+  return ProcessMessageManager_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace mozilla::dom